From ae8fd29ce6dcd096c33e7f0fbb8795a02f9b59b6 Mon Sep 17 00:00:00 2001
From: Sourcery AI <>
Date: Fri, 19 Jan 2024 01:37:45 +0000
Subject: [PATCH] 'Refactored by Sourcery'

---
 conftest.py                                   |   5 +-
 pkg_resources/__init__.py                     | 182 ++++++---------
 .../_vendor/importlib_resources/_adapters.py  |   4 +-
 .../_vendor/importlib_resources/_common.py    |   8 +-
 pkg_resources/_vendor/jaraco/functools.py     |   6 +-
 pkg_resources/_vendor/more_itertools/more.py  | 121 ++++------
 .../_vendor/more_itertools/recipes.py         |   8 +-
 pkg_resources/_vendor/packaging/__init__.py   |   2 +-
 pkg_resources/_vendor/packaging/_manylinux.py |   8 +-
 pkg_resources/_vendor/packaging/_musllinux.py |   6 +-
 pkg_resources/_vendor/packaging/_parser.py    |   5 +-
 pkg_resources/_vendor/packaging/markers.py    |  10 +-
 .../_vendor/packaging/requirements.py         |   4 +-
 pkg_resources/_vendor/packaging/specifiers.py |  34 +--
 pkg_resources/_vendor/packaging/tags.py       |  32 +--
 pkg_resources/_vendor/packaging/version.py    |  27 +--
 pkg_resources/_vendor/platformdirs/android.py |  14 +-
 pkg_resources/_vendor/platformdirs/unix.py    |   2 +-
 pkg_resources/_vendor/typing_extensions.py    |  52 ++---
 pkg_resources/_vendor/zipp.py                 |   2 +-
 pkg_resources/extern/__init__.py              |   6 +-
 pkg_resources/tests/test_pkg_resources.py     |  19 +-
 pkg_resources/tests/test_resources.py         |  19 +-
 pkg_resources/tests/test_working_set.py       |   8 +-
 setuptools/__init__.py                        |  13 +-
 setuptools/_core_metadata.py                  |  16 +-
 setuptools/_distutils/_collections.py         |   3 +-
 setuptools/_distutils/_modified.py            |   2 +-
 setuptools/_distutils/_msvccompiler.py        |  42 ++--
 setuptools/_distutils/archive_util.py         |  31 +--
 setuptools/_distutils/bcppcompiler.py         |  48 ++--
 setuptools/_distutils/ccompiler.py            |  98 ++++----
 setuptools/_distutils/cmd.py                  |  47 ++--
 setuptools/_distutils/command/bdist.py        |  12 +-
 setuptools/_distutils/command/bdist_dumb.py   |  25 +--
 setuptools/_distutils/command/bdist_rpm.py    |  40 ++--
 setuptools/_distutils/command/build.py        |  25 +--
 setuptools/_distutils/command/build_clib.py   |   5 +-
 setuptools/_distutils/command/build_ext.py    |  71 +++---
 setuptools/_distutils/command/build_py.py     |  63 +++---
 .../_distutils/command/build_scripts.py       |  10 +-
 setuptools/_distutils/command/check.py        |  22 +-
 setuptools/_distutils/command/config.py       |  10 +-
 setuptools/_distutils/command/install.py      |  38 ++--
 .../_distutils/command/install_egg_info.py    |   6 +-
 setuptools/_distutils/command/install_lib.py  |  10 +-
 setuptools/_distutils/command/py37compat.py   |   6 +-
 setuptools/_distutils/command/register.py     |  25 +--
 setuptools/_distutils/command/sdist.py        |  62 +++---
 setuptools/_distutils/command/upload.py       |  30 +--
 setuptools/_distutils/config.py               |  10 +-
 setuptools/_distutils/core.py                 |  22 +-
 setuptools/_distutils/cygwinccompiler.py      |  51 ++---
 setuptools/_distutils/dir_util.py             |  20 +-
 setuptools/_distutils/dist.py                 | 116 ++++------
 setuptools/_distutils/extension.py            |  14 +-
 setuptools/_distutils/fancy_getopt.py         |  84 +++----
 setuptools/_distutils/file_util.py            |  48 ++--
 setuptools/_distutils/filelist.py             |  48 ++--
 setuptools/_distutils/msvc9compiler.py        | 120 ++++------
 setuptools/_distutils/msvccompiler.py         |  86 +++----
 setuptools/_distutils/py38compat.py           |   2 +-
 setuptools/_distutils/spawn.py                |  23 +-
 setuptools/_distutils/sysconfig.py            | 210 +++++++++---------
 setuptools/_distutils/tests/py38compat.py     |   6 +-
 setuptools/_distutils/tests/support.py        |   9 +-
 .../_distutils/tests/test_archive_util.py     |  12 +-
 setuptools/_distutils/tests/test_bdist.py     |   2 +-
 .../_distutils/tests/test_bdist_dumb.py       |   4 +-
 setuptools/_distutils/tests/test_build.py     |   6 +-
 .../_distutils/tests/test_build_clib.py       |   7 +-
 setuptools/_distutils/tests/test_build_ext.py |  30 +--
 setuptools/_distutils/tests/test_build_py.py  |   4 +-
 .../_distutils/tests/test_build_scripts.py    |   6 +-
 setuptools/_distutils/tests/test_check.py     |   6 +-
 setuptools/_distutils/tests/test_clean.py     |   2 +-
 .../_distutils/tests/test_config_cmd.py       |   6 +-
 setuptools/_distutils/tests/test_dist.py      |   4 +-
 setuptools/_distutils/tests/test_file_util.py |   6 +-
 setuptools/_distutils/tests/test_install.py   |   2 +-
 .../_distutils/tests/test_msvccompiler.py     |   2 +-
 setuptools/_distutils/tests/test_sdist.py     |   4 +-
 setuptools/_distutils/tests/test_spawn.py     |   4 +-
 setuptools/_distutils/tests/test_sysconfig.py |   2 +-
 .../_distutils/tests/test_unixccompiler.py    |  36 ++-
 setuptools/_distutils/tests/test_upload.py    |   5 +-
 setuptools/_distutils/tests/test_util.py      |   4 +-
 setuptools/_distutils/tests/test_version.py   |  24 +-
 setuptools/_distutils/text_file.py            |  38 ++--
 setuptools/_distutils/unixccompiler.py        |  19 +-
 setuptools/_distutils/util.py                 |  46 ++--
 setuptools/_distutils/version.py              |  50 ++---
 setuptools/_distutils/versionpredicate.py     |  15 +-
 setuptools/_imp.py                            |  18 +-
 setuptools/_normalization.py                  |   3 +-
 .../_vendor/importlib_metadata/__init__.py    |   5 +-
 .../_vendor/importlib_resources/_adapters.py  |   4 +-
 .../_vendor/importlib_resources/_common.py    |   8 +-
 setuptools/_vendor/jaraco/functools.py        |   6 +-
 setuptools/_vendor/more_itertools/more.py     | 110 +++------
 setuptools/_vendor/more_itertools/recipes.py  |   2 +-
 setuptools/_vendor/ordered_set.py             |  30 +--
 setuptools/_vendor/packaging/__init__.py      |   2 +-
 setuptools/_vendor/packaging/_manylinux.py    |   8 +-
 setuptools/_vendor/packaging/_musllinux.py    |   6 +-
 setuptools/_vendor/packaging/_parser.py       |   5 +-
 setuptools/_vendor/packaging/markers.py       |  10 +-
 setuptools/_vendor/packaging/requirements.py  |   4 +-
 setuptools/_vendor/packaging/specifiers.py    |  34 +--
 setuptools/_vendor/packaging/tags.py          |  32 +--
 setuptools/_vendor/packaging/version.py       |  27 +--
 setuptools/_vendor/tomli/_parser.py           |  46 ++--
 setuptools/_vendor/typing_extensions.py       |  58 ++---
 setuptools/_vendor/zipp.py                    |   2 +-
 setuptools/archive_util.py                    |  22 +-
 setuptools/build_meta.py                      |   8 +-
 setuptools/depends.py                         |  13 +-
 setuptools/discovery.py                       |  14 +-
 setuptools/dist.py                            |  35 ++-
 setuptools/glob.py                            |  28 +--
 setuptools/installer.py                       |   6 +-
 setuptools/msvc.py                            |  72 +++---
 setuptools/package_index.py                   |  66 ++----
 setuptools/sandbox.py                         |  16 +-
 setuptools/warnings.py                        |   3 +-
 setuptools/wheel.py                           |   6 +-
 126 files changed, 1245 insertions(+), 2023 deletions(-)

diff --git a/conftest.py b/conftest.py
index 8dcf7e6805..749f4737fb 100644
--- a/conftest.py
+++ b/conftest.py
@@ -42,10 +42,7 @@ def pytest_configure(config):
 
 
 if sys.version_info < (3, 6):
-    collect_ignore.append('docs/conf.py')  # uses f-strings
-    collect_ignore.append('pavement.py')
-
-
+    collect_ignore.extend(('docs/conf.py', 'pavement.py'))
 if sys.version_info < (3, 9) or sys.platform == 'cygwin':
     collect_ignore.append('tools/finalize.py')
 
diff --git a/pkg_resources/__init__.py b/pkg_resources/__init__.py
index 288280c78d..fe407ab7e9 100644
--- a/pkg_resources/__init__.py
+++ b/pkg_resources/__init__.py
@@ -145,17 +145,14 @@ def _declare_state(vartype, **kw):
 
 
 def __getstate__():
-    state = {}
     g = globals()
-    for k, v in _state_vars.items():
-        state[k] = g['_sget_' + v](g[k])
-    return state
+    return {k: g[f'_sget_{v}'](g[k]) for k, v in _state_vars.items()}
 
 
 def __setstate__(state):
     g = globals()
     for k, v in state.items():
-        g['_sset_' + _state_vars[k]](k, g[k], v)
+        g[f'_sset_{_state_vars[k]}'](k, g[k], v)
     return state
 
 
@@ -196,7 +193,7 @@ def get_supported_platform():
     m = macosVersionString.match(plat)
     if m is not None and sys.platform == "darwin":
         try:
-            plat = 'macosx-%s-%s' % ('.'.join(_macos_vers()[:2]), m.group(3))
+            plat = f"macosx-{'.'.join(_macos_vers()[:2])}-{m.group(3)}"
         except ValueError:
             # not macOS
             pass
@@ -359,9 +356,7 @@ def requirers(self):
 
     @property
     def requirers_str(self):
-        if not self.requirers:
-            return 'the application'
-        return ', '.join(self.requirers)
+        return 'the application' if not self.requirers else ', '.join(self.requirers)
 
     def report(self):
         return self._template.format(**locals())
@@ -467,20 +462,14 @@ def compatible_platforms(provided, required):
         # easy case
         return True
 
-    # macOS special cases
-    reqMac = macosVersionString.match(required)
-    if reqMac:
+    if reqMac := macosVersionString.match(required):
         provMac = macosVersionString.match(provided)
 
         # is this a Mac package?
         if not provMac:
-            # this is backwards compatibility for packages built before
-            # setuptools 0.6. All packages built after this point will
-            # use the new macOS designation.
-            provDarwin = darwinVersionString.match(provided)
-            if provDarwin:
+            if provDarwin := darwinVersionString.match(provided):
                 dversion = int(provDarwin.group(1))
-                macosversion = "%s.%s" % (reqMac.group(1), reqMac.group(2))
+                macosversion = f"{reqMac.group(1)}.{reqMac.group(2)}"
                 if (
                     dversion == 7
                     and macosversion >= "10.3"
@@ -496,11 +485,7 @@ def compatible_platforms(provided, required):
             return False
 
         # is the required OS major update >= the provided one?
-        if int(provMac.group(2)) > int(reqMac.group(2)):
-            return False
-
-        return True
-
+        return int(provMac.group(2)) <= int(reqMac.group(2))
     # XXX Linux and other platforms' special cases should go here
     return False
 
@@ -545,53 +530,53 @@ def get_entry_info(dist, group, name):
 
 
 class IMetadataProvider:
-    def has_metadata(name):
+    def has_metadata(self):
         """Does the package's distribution contain the named metadata?"""
 
-    def get_metadata(name):
+    def get_metadata(self):
         """The named metadata resource as a string"""
 
-    def get_metadata_lines(name):
+    def get_metadata_lines(self):
         """Yield named metadata resource as list of non-blank non-comment lines
 
         Leading and trailing whitespace is stripped from each line, and lines
         with ``#`` as the first non-blank character are omitted."""
 
-    def metadata_isdir(name):
+    def metadata_isdir(self):
         """Is the named metadata a directory?  (like ``os.path.isdir()``)"""
 
-    def metadata_listdir(name):
+    def metadata_listdir(self):
         """List of metadata names in the directory (like ``os.listdir()``)"""
 
-    def run_script(script_name, namespace):
+    def run_script(self, namespace):
         """Execute the named script in the supplied namespace dictionary"""
 
 
 class IResourceProvider(IMetadataProvider):
     """An object that provides access to package resources"""
 
-    def get_resource_filename(manager, resource_name):
+    def get_resource_filename(self, resource_name):
         """Return a true filesystem path for `resource_name`
 
         `manager` must be an ``IResourceManager``"""
 
-    def get_resource_stream(manager, resource_name):
+    def get_resource_stream(self, resource_name):
         """Return a readable file-like object for `resource_name`
 
         `manager` must be an ``IResourceManager``"""
 
-    def get_resource_string(manager, resource_name):
+    def get_resource_string(self, resource_name):
         """Return a string containing the contents of `resource_name`
 
         `manager` must be an ``IResourceManager``"""
 
-    def has_resource(resource_name):
+    def has_resource(self):
         """Does the package contain the named resource?"""
 
-    def resource_isdir(resource_name):
+    def resource_isdir(self):
         """Is the named resource a directory?  (like ``os.path.isdir()``)"""
 
-    def resource_listdir(resource_name):
+    def resource_listdir(self):
         """List of resource names in the directory (like ``os.listdir()``)"""
 
 
@@ -863,9 +848,9 @@ def _resolve_dist(
                 dist = best[req.key] = env.best_match(
                     req, ws, installer, replace_conflicting=replace_conflicting
                 )
-                if dist is None:
-                    requirers = required_by.get(req, None)
-                    raise DistributionNotFound(req, requirers)
+            if dist is None:
+                requirers = required_by.get(req, None)
+                raise DistributionNotFound(req, requirers)
             to_activate.append(dist)
         if dist not in req:
             # Oops, the "best" so far conflicts with a dependency
@@ -908,10 +893,7 @@ def find_plugins(self, plugin_env, full_env=None, installer=None, fallback=True)
         ``VersionConflict`` instance.
         """
 
-        plugin_projects = list(plugin_env)
-        # scan project names in alphabetic order
-        plugin_projects.sort()
-
+        plugin_projects = sorted(plugin_env)
         error_info = {}
         distributions = {}
 
@@ -949,9 +931,7 @@ def find_plugins(self, plugin_env, full_env=None, installer=None, fallback=True)
                     # success, no need to try any more versions of this project
                     break
 
-        distributions = list(distributions)
-        distributions.sort()
-
+        distributions = sorted(distributions)
         return distributions, error_info
 
     def require(self, *requirements):
@@ -1272,7 +1252,7 @@ def get_cache_path(self, archive_name, names=()):
         extract, as it tracks the generated names for possible cleanup later.
         """
         extract_path = self.extraction_path or get_default_cache()
-        target_path = os.path.join(extract_path, archive_name + '-tmp', *names)
+        target_path = os.path.join(extract_path, f'{archive_name}-tmp', *names)
         try:
             _bypass_ensure_directory(target_path)
         except Exception:
@@ -1413,8 +1393,7 @@ def _forgiving_version(version):
     <Version('0.dev0+sanitized.hello.world')>
     """
     version = version.replace(' ', '.')
-    match = _PEP440_FALLBACK.search(version)
-    if match:
+    if match := _PEP440_FALLBACK.search(version):
         safe = match["safe"]
         rest = version[len(safe) :]
     else:
@@ -1520,7 +1499,7 @@ def get_metadata(self, name):
         except UnicodeDecodeError as exc:
             # Include the path in the error message to simplify
             # troubleshooting, and without changing the exception type.
-            exc.reason += ' in {} file at path: {}'.format(name, path)
+            exc.reason += f' in {name} file at path: {path}'
             raise
 
     def get_metadata_lines(self, name):
@@ -1536,12 +1515,10 @@ def resource_listdir(self, resource_name):
         return self._listdir(self._fn(self.module_path, resource_name))
 
     def metadata_listdir(self, name):
-        if self.egg_info:
-            return self._listdir(self._fn(self.egg_info, name))
-        return []
+        return self._listdir(self._fn(self.egg_info, name)) if self.egg_info else []
 
     def run_script(self, script_name, namespace):
-        script = 'scripts/' + script_name
+        script = f'scripts/{script_name}'
         if not self.has_metadata(script):
             raise ResolutionError(
                 "Script {script!r} not found in metadata at {self.egg_info!r}".format(
@@ -1586,9 +1563,7 @@ def _listdir(self, path):
 
     def _fn(self, base, resource_name):
         self._validate_resource_path(resource_name)
-        if resource_name:
-            return os.path.join(base, *resource_name.split('/'))
-        return base
+        return os.path.join(base, *resource_name.split('/')) if resource_name else base
 
     @staticmethod
     def _validate_resource_path(path):
@@ -1660,7 +1635,7 @@ def _validate_resource_path(path):
         # for compatibility, warn; in future
         # raise ValueError(msg)
         issue_warning(
-            msg[:-1] + " and will raise exceptions in a future release.",
+            f"{msg[:-1]} and will raise exceptions in a future release.",
             DeprecationWarning,
         )
 
@@ -1825,7 +1800,7 @@ def _zipinfo_name(self, fspath):
             return ''
         if fspath.startswith(self.zip_pre):
             return fspath[len(self.zip_pre) :]
-        raise AssertionError("%s is not a subpath of %s" % (fspath, self.zip_pre))
+        raise AssertionError(f"{fspath} is not a subpath of {self.zip_pre}")
 
     def _parts(self, zip_path):
         # Convert a zipfile subpath into an egg-relative path part list.
@@ -1833,7 +1808,7 @@ def _parts(self, zip_path):
         fspath = self.zip_pre + zip_path
         if fspath.startswith(self.egg_root + os.sep):
             return fspath[len(self.egg_root) + 1 :].split(os.sep)
-        raise AssertionError("%s is not a subpath of %s" % (fspath, self.egg_root))
+        raise AssertionError(f"{fspath} is not a subpath of {self.egg_root}")
 
     @property
     def zipinfo(self):
@@ -2092,8 +2067,7 @@ def find_eggs_in_zip(importer, path_item, only=False):
     for subitem in metadata.resource_listdir(''):
         if _is_egg_path(subitem):
             subpath = os.path.join(path_item, subitem)
-            dists = find_eggs_in_zip(zipimport.zipimporter(subpath), subpath)
-            yield from dists
+            yield from find_eggs_in_zip(zipimport.zipimporter(subpath), subpath)
         elif subitem.lower().endswith(('.dist-info', '.egg-info')):
             subpath = os.path.join(path_item, subitem)
             submeta = EggMetadata(zipimport.zipimporter(subpath))
@@ -2206,8 +2180,7 @@ def non_empty_lines(path):
     """
     with open(path) as f:
         for line in f:
-            line = line.strip()
-            if line:
+            if line := line.strip():
                 yield line
 
 
@@ -2370,8 +2343,7 @@ def fixup_namespace_packages(path_item, parent=None):
     _imp.acquire_lock()
     try:
         for package in _namespace_packages.get(parent, ()):
-            subpath = _handle_ns(package, path_item)
-            if subpath:
+            if subpath := _handle_ns(package, path_item):
                 fixup_namespace_packages(subpath, package)
     finally:
         _imp.release_lock()
@@ -2485,11 +2457,11 @@ def __init__(self, name, module_name, attrs=(), extras=(), dist=None):
         self.dist = dist
 
     def __str__(self):
-        s = "%s = %s" % (self.name, self.module_name)
+        s = f"{self.name} = {self.module_name}"
         if self.attrs:
             s += ':' + '.'.join(self.attrs)
         if self.extras:
-            s += ' [%s]' % ','.join(self.extras)
+            s += f" [{','.join(self.extras)}]"
         return s
 
     def __repr__(self):
@@ -2566,7 +2538,7 @@ def parse(cls, src, dist=None):
     def _parse_extras(cls, extras_spec):
         if not extras_spec:
             return ()
-        req = Requirement.parse('x' + extras_spec)
+        req = Requirement.parse(f'x{extras_spec}')
         if req.specs:
             raise ValueError()
         return req.extras
@@ -2587,10 +2559,7 @@ def parse_group(cls, group, lines, dist=None):
     @classmethod
     def parse_map(cls, data, dist=None):
         """Parse a map of entry point groups"""
-        if isinstance(data, dict):
-            data = data.items()
-        else:
-            data = split_sections(data)
+        data = data.items() if isinstance(data, dict) else split_sections(data)
         maps = {}
         for group, lines in data:
             if group is None:
@@ -2650,8 +2619,7 @@ def from_location(cls, location, basename, metadata=None, **kw):
         if ext.lower() in _distributionImpl:
             cls = _distributionImpl[ext.lower()]
 
-            match = EGG_NAME(basename)
-            if match:
+            if match := EGG_NAME(basename):
                 project_name, version, py_version, platform = match.group(
                     'name', 'ver', 'pyver', 'plat'
                 )
@@ -2763,9 +2731,7 @@ def version(self):
             version = self._get_version()
             if version is None:
                 path = self._get_metadata_path_for_display(self.PKG_INFO)
-                msg = ("Missing 'Version:' header and/or {} file at path: {}").format(
-                    self.PKG_INFO, path
-                )
+                msg = f"Missing 'Version:' header and/or {self.PKG_INFO} file at path: {path}"
                 raise ValueError(msg, self) from e
 
             return version
@@ -2793,10 +2759,9 @@ def _filter_extras(dm):
             new_extra = extra
             reqs = dm.pop(extra)
             new_extra, _, marker = extra.partition(':')
-            fails_marker = marker and (
+            if fails_marker := marker and (
                 invalid_marker(marker) or not evaluate_marker(marker)
-            )
-            if fails_marker:
+            ):
                 reqs = []
             new_extra = safe_extra(new_extra) or None
 
@@ -2847,9 +2812,7 @@ def _get_metadata(self, name):
 
     def _get_version(self):
         lines = self._get_metadata(self.PKG_INFO)
-        version = _version_from_file(lines)
-
-        return version
+        return _version_from_file(lines)
 
     def activate(self, path=None, replace=False):
         """Ensure distribution is importable on `path` (default=sys.path)"""
@@ -2864,21 +2827,14 @@ def activate(self, path=None, replace=False):
 
     def egg_name(self):
         """Return what this distribution's standard .egg filename should be"""
-        filename = "%s-%s-py%s" % (
-            to_filename(self.project_name),
-            to_filename(self.version),
-            self.py_version or PY_MAJOR,
-        )
+        filename = f"{to_filename(self.project_name)}-{to_filename(self.version)}-py{self.py_version or PY_MAJOR}"
 
         if self.platform:
-            filename += '-' + self.platform
+            filename += f'-{self.platform}'
         return filename
 
     def __repr__(self):
-        if self.location:
-            return "%s (%s)" % (self, self.location)
-        else:
-            return str(self)
+        return f"{self} ({self.location})" if self.location else str(self)
 
     def __str__(self):
         try:
@@ -2886,7 +2842,7 @@ def __str__(self):
         except ValueError:
             version = None
         version = version or "[unknown version]"
-        return "%s %s" % (self.project_name, version)
+        return f"{self.project_name} {version}"
 
     def __getattr__(self, attr):
         """Delegate all unrecognized public attributes to .metadata provider"""
@@ -2896,8 +2852,14 @@ def __getattr__(self, attr):
 
     def __dir__(self):
         return list(
-            set(super().__dir__())
-            | set(attr for attr in self._provider.__dir__() if not attr.startswith('_'))
+            (
+                set(super().__dir__())
+                | {
+                    attr
+                    for attr in self._provider.__dir__()
+                    if not attr.startswith('_')
+                }
+            )
         )
 
     @classmethod
@@ -2909,9 +2871,9 @@ def from_filename(cls, filename, metadata=None, **kw):
     def as_requirement(self):
         """Return a ``Requirement`` that matches this distribution exactly"""
         if isinstance(self.parsed_version, packaging.version.Version):
-            spec = "%s==%s" % (self.project_name, self.parsed_version)
+            spec = f"{self.project_name}=={self.parsed_version}"
         else:
-            spec = "%s===%s" % (self.project_name, self.parsed_version)
+            spec = f"{self.project_name}==={self.parsed_version}"
 
         return Requirement.parse(spec)
 
@@ -2930,9 +2892,7 @@ def get_entry_map(self, group=None):
             ep_map = self._ep_map = EntryPoint.parse_map(
                 self._get_metadata('entry_points.txt'), self
             )
-        if group is not None:
-            return ep_map.get(group, {})
-        return ep_map
+        return ep_map.get(group, {}) if group is not None else ep_map
 
     def get_entry_info(self, group, name):
         """Return the EntryPoint object for `group`+`name`, or ``None``"""
@@ -3037,7 +2997,7 @@ def has_version(self):
         try:
             self.version
         except ValueError:
-            issue_warning("Unbuilt egg for " + repr(self))
+            issue_warning(f"Unbuilt egg for {repr(self)}")
             return False
         except SystemError:
             # TODO: remove this except clause when python/cpython#103632 is fixed.
@@ -3070,8 +3030,7 @@ def _reload_version(self):
         take an extra step and try to get the version number from
         the metadata file itself instead of the filename.
         """
-        md_version = self._get_version()
-        if md_version:
+        if md_version := self._get_version():
             self._version = md_version
         return self
 
@@ -3213,9 +3172,7 @@ def _always_object(classes):
     Ensure object appears in the mro even
     for old-style classes.
     """
-    if object not in classes:
-        return classes + (object,)
-    return classes
+    return classes + (object,) if object not in classes else classes
 
 
 def _find_adapter(registry, ob):
@@ -3257,13 +3214,12 @@ def split_sections(s):
     content = []
     for line in yield_lines(s):
         if line.startswith("["):
-            if line.endswith("]"):
-                if section or content:
-                    yield section, content
-                section = line[1:-1].strip()
-                content = []
-            else:
+            if not line.endswith("]"):
                 raise ValueError("Invalid section heading", line)
+            if section or content:
+                yield section, content
+            section = line[1:-1].strip()
+            content = []
         else:
             content.append(line)
 
diff --git a/pkg_resources/_vendor/importlib_resources/_adapters.py b/pkg_resources/_vendor/importlib_resources/_adapters.py
index ea363d86a5..30bd38a8eb 100644
--- a/pkg_resources/_vendor/importlib_resources/_adapters.py
+++ b/pkg_resources/_vendor/importlib_resources/_adapters.py
@@ -35,7 +35,7 @@ def _io_wrapper(file, mode='r', *args, **kwargs):
     elif mode == 'rb':
         return file
     raise ValueError(
-        "Invalid mode value '{}', only 'r' and 'rb' are supported".format(mode)
+        f"Invalid mode value '{mode}', only 'r' and 'rb' are supported"
     )
 
 
@@ -118,7 +118,7 @@ class OrphanPath(abc.Traversable):
         """
 
         def __init__(self, *path_parts):
-            if len(path_parts) < 1:
+            if not path_parts:
                 raise ValueError('Need at least one path part to construct a path')
             self._path = path_parts
 
diff --git a/pkg_resources/_vendor/importlib_resources/_common.py b/pkg_resources/_vendor/importlib_resources/_common.py
index 3c6de1cfb2..01bf48ae53 100644
--- a/pkg_resources/_vendor/importlib_resources/_common.py
+++ b/pkg_resources/_vendor/importlib_resources/_common.py
@@ -67,9 +67,7 @@ def get_resource_reader(package: types.ModuleType) -> Optional[ResourceReader]:
     # TypeError.  That seems terrible.
     spec = package.__spec__
     reader = getattr(spec.loader, 'get_resource_reader', None)  # type: ignore
-    if reader is None:
-        return None
-    return reader(spec.name)  # type: ignore
+    return None if reader is None else reader(spec.name)
 
 
 @functools.singledispatch
@@ -135,10 +133,8 @@ def _tempfile(
         del reader
         yield pathlib.Path(raw_path)
     finally:
-        try:
+        with contextlib.suppress(FileNotFoundError):
             _os_remove(raw_path)
-        except FileNotFoundError:
-            pass
 
 
 def _temp_file(path):
diff --git a/pkg_resources/_vendor/jaraco/functools.py b/pkg_resources/_vendor/jaraco/functools.py
index 67aeadc353..33128a4047 100644
--- a/pkg_resources/_vendor/jaraco/functools.py
+++ b/pkg_resources/_vendor/jaraco/functools.py
@@ -204,7 +204,7 @@ def _special_method_cache(method, cache_wrapper):
     if name not in special_names:
         return
 
-    wrapper_name = '__cached' + name
+    wrapper_name = f'__cached{name}'
 
     def proxy(self, *args, **kwargs):
         if wrapper_name not in vars(self):
@@ -369,7 +369,7 @@ def retry_call(func, cleanup=lambda: None, retries=0, trap=()):
     to propagate.
     """
     attempts = itertools.count() if retries == float('inf') else range(retries)
-    for attempt in attempts:
+    for _ in attempts:
         try:
             return func()
         except trap:
@@ -508,7 +508,7 @@ def save_method_args(method):
 
     @functools.wraps(method)
     def wrapper(self, *args, **kwargs):
-        attr_name = '_saved_' + method.__name__
+        attr_name = f'_saved_{method.__name__}'
         attr = args_and_kwargs(args, kwargs)
         setattr(self, attr_name, attr)
         return method(self, *args, **kwargs)
diff --git a/pkg_resources/_vendor/more_itertools/more.py b/pkg_resources/_vendor/more_itertools/more.py
index e0e2d3de92..4737793fef 100755
--- a/pkg_resources/_vendor/more_itertools/more.py
+++ b/pkg_resources/_vendor/more_itertools/more.py
@@ -369,10 +369,7 @@ def prepend(self, *items):
         self._cache.extendleft(reversed(items))
 
     def __next__(self):
-        if self._cache:
-            return self._cache.popleft()
-
-        return next(self._it)
+        return self._cache.popleft() if self._cache else next(self._it)
 
     def _get_slice(self, index):
         # Normalize the slice's arguments
@@ -607,14 +604,13 @@ def strictly_n(iterable, n, too_short=None, too_long=None):
     """
     if too_short is None:
         too_short = lambda item_count: raise_(
-            ValueError,
-            'Too few items in iterable (got {})'.format(item_count),
+            ValueError, f'Too few items in iterable (got {item_count})'
         )
 
     if too_long is None:
         too_long = lambda item_count: raise_(
             ValueError,
-            'Too many items in iterable (got at least {})'.format(item_count),
+            f'Too many items in iterable (got at least {item_count})',
         )
 
     it = iter(iterable)
@@ -998,10 +994,7 @@ def __iter__(self):
         yield from self._cache.keys()
 
     def __getitem__(self, value):
-        if not self._validator(value):
-            return iter(())
-
-        return self._get_values(value)
+        return iter(()) if not self._validator(value) else self._get_values(value)
 
 
 def spy(iterable, n=1):
@@ -1547,8 +1540,7 @@ def repeat_last(iterable, default=None):
 
     """
     item = _marker
-    for item in iterable:
-        yield item
+    yield from iterable
     final = default if item is _marker else item
     yield from repeat(final)
 
@@ -2045,7 +2037,9 @@ class numeric_range(abc.Sequence, abc.Hashable):
 
     def __init__(self, *args):
         argc = len(args)
-        if argc == 1:
+        if argc == 0:
+            raise TypeError(f'numeric_range expected at least 1 argument, got {argc}')
+        elif argc == 1:
             (self._stop,) = args
             self._start = type(self._stop)(0)
             self._step = type(self._stop - self._start)(1)
@@ -2054,16 +2048,8 @@ def __init__(self, *args):
             self._step = type(self._stop - self._start)(1)
         elif argc == 3:
             self._start, self._stop, self._step = args
-        elif argc == 0:
-            raise TypeError(
-                'numeric_range expected at least '
-                '1 argument, got {}'.format(argc)
-            )
         else:
-            raise TypeError(
-                'numeric_range expected at most '
-                '3 arguments, got {}'.format(argc)
-            )
+            raise TypeError(f'numeric_range expected at most 3 arguments, got {argc}')
 
         self._zero = type(self._step)(0)
         if self._step == self._zero:
@@ -2072,35 +2058,31 @@ def __init__(self, *args):
         self._init_len()
 
     def __bool__(self):
-        if self._growing:
-            return self._start < self._stop
-        else:
-            return self._start > self._stop
+        return self._start < self._stop if self._growing else self._start > self._stop
 
     def __contains__(self, elem):
         if self._growing:
             if self._start <= elem < self._stop:
                 return (elem - self._start) % self._step == self._zero
-        else:
-            if self._start >= elem > self._stop:
-                return (self._start - elem) % (-self._step) == self._zero
+        elif self._start >= elem > self._stop:
+            return (self._start - elem) % (-self._step) == self._zero
 
         return False
 
     def __eq__(self, other):
-        if isinstance(other, numeric_range):
-            empty_self = not bool(self)
-            empty_other = not bool(other)
-            if empty_self or empty_other:
-                return empty_self and empty_other  # True if both empty
-            else:
-                return (
-                    self._start == other._start
-                    and self._step == other._step
-                    and self._get_by_index(-1) == other._get_by_index(-1)
-                )
-        else:
+        if not isinstance(other, numeric_range):
             return False
+        empty_self = not bool(self)
+        empty_other = not bool(other)
+        return (
+            empty_self and empty_other
+            if empty_self or empty_other
+            else (
+                self._start == other._start
+                and self._step == other._step
+                and self._get_by_index(-1) == other._get_by_index(-1)
+            )
+        )
 
     def __getitem__(self, key):
         if isinstance(key, int):
@@ -2125,8 +2107,7 @@ def __getitem__(self, key):
             return numeric_range(start, stop, step)
         else:
             raise TypeError(
-                'numeric range indices must be '
-                'integers or slices, not {}'.format(type(key).__name__)
+                f'numeric range indices must be integers or slices, not {type(key).__name__}'
             )
 
     def __hash__(self):
@@ -2166,13 +2147,9 @@ def __reduce__(self):
 
     def __repr__(self):
         if self._step == 1:
-            return "numeric_range({}, {})".format(
-                repr(self._start), repr(self._stop)
-            )
+            return f"numeric_range({repr(self._start)}, {repr(self._stop)})"
         else:
-            return "numeric_range({}, {}, {})".format(
-                repr(self._start), repr(self._stop), repr(self._step)
-            )
+            return f"numeric_range({repr(self._start)}, {repr(self._stop)}, {repr(self._step)})"
 
     def __reversed__(self):
         return iter(
@@ -2190,13 +2167,12 @@ def index(self, value):
                 q, r = divmod(value - self._start, self._step)
                 if r == self._zero:
                     return int(q)
-        else:
-            if self._start >= value > self._stop:
-                q, r = divmod(self._start - value, -self._step)
-                if r == self._zero:
-                    return int(q)
+        elif self._start >= value > self._stop:
+            q, r = divmod(self._start - value, -self._step)
+            if r == self._zero:
+                return int(q)
 
-        raise ValueError("{} is not in numeric range".format(value))
+        raise ValueError(f"{value} is not in numeric range")
 
     def _get_by_index(self, i):
         if i < 0:
@@ -2406,10 +2382,7 @@ class islice_extended:
 
     def __init__(self, iterable, *args):
         it = iter(iterable)
-        if args:
-            self._iterable = _islice_helper(it, slice(*args))
-        else:
-            self._iterable = it
+        self._iterable = _islice_helper(it, slice(*args)) if args else it
 
     def __iter__(self):
         return self
@@ -2485,11 +2458,7 @@ def _islice_helper(it, s):
             # If start and stop are both negative they are comparable and
             # we can just slice. Otherwise we can adjust start to be negative
             # and then slice.
-            if start < 0:
-                i, j = start, stop
-            else:
-                i, j = min(start - len_iter, -1), None
-
+            i, j = (start, stop) if start < 0 else (min(start - len_iter, -1), None)
             for index, item in list(cache)[i:j:step]:
                 yield item
         else:
@@ -2670,7 +2639,7 @@ def __len__(self):
         return len(self._target)
 
     def __repr__(self):
-        return '{}({})'.format(self.__class__.__name__, repr(self._target))
+        return f'{self.__class__.__name__}({repr(self._target)})'
 
 
 class seekable:
@@ -2761,10 +2730,7 @@ class seekable:
 
     def __init__(self, iterable, maxlen=None):
         self._source = iter(iterable)
-        if maxlen is None:
-            self._cache = []
-        else:
-            self._cache = deque([], maxlen)
+        self._cache = [] if maxlen is None else deque([], maxlen)
         self._index = None
 
     def __iter__(self):
@@ -3544,9 +3510,8 @@ def sample(iterable, k, weights=None):
     iterable = iter(iterable)
     if weights is None:
         return _sample_unweighted(iterable, k)
-    else:
-        weights = iter(weights)
-        return _sample_weighted(iterable, k, weights)
+    weights = iter(weights)
+    return _sample_weighted(iterable, k, weights)
 
 
 def is_sorted(iterable, key=None, reverse=False, strict=False):
@@ -3657,9 +3622,7 @@ def __next__(self):
 
     @property
     def done(self):
-        if self._future is None:
-            return False
-        return self._future.done()
+        return False if self._future is None else self._future.done()
 
     @property
     def result(self):
@@ -4280,9 +4243,7 @@ def minmax(iterable_or_value, *others, key=None, default=_marker):
                 x, y = y, x
             if x < lo:
                 lo = x
-            if hi < y:
-                hi = y
-
+            hi = max(hi, y)
     else:
         lo_key = hi_key = key(lo)
 
@@ -4385,7 +4346,7 @@ def gray_product(*iterables):
         if j == iterable_count:
             break
         a[j] = a[j] + o[j]
-        if a[j] == 0 or a[j] == len(all_iterables[j]) - 1:
+        if a[j] in [0, len(all_iterables[j]) - 1]:
             o[j] = -o[j]
             f[j] = f[j + 1]
             f[j + 1] = j + 1
diff --git a/pkg_resources/_vendor/more_itertools/recipes.py b/pkg_resources/_vendor/more_itertools/recipes.py
index 3facc2e3a6..63321150f9 100644
--- a/pkg_resources/_vendor/more_itertools/recipes.py
+++ b/pkg_resources/_vendor/more_itertools/recipes.py
@@ -639,7 +639,7 @@ def random_combination_with_replacement(iterable, r):
     """
     pool = tuple(iterable)
     n = len(pool)
-    indices = sorted(randrange(n) for i in range(r))
+    indices = sorted(randrange(n) for _ in range(r))
     return tuple(pool[i] for i in indices)
 
 
@@ -881,10 +881,10 @@ def batched(iterable, n):
 
     it = iter(iterable)
     while True:
-        batch = list(islice(it, n))
-        if not batch:
+        if batch := list(islice(it, n)):
+            yield batch
+        else:
             break
-        yield batch
 
 
 def transpose(it):
diff --git a/pkg_resources/_vendor/packaging/__init__.py b/pkg_resources/_vendor/packaging/__init__.py
index 13cadc7f04..52f4c227ea 100644
--- a/pkg_resources/_vendor/packaging/__init__.py
+++ b/pkg_resources/_vendor/packaging/__init__.py
@@ -12,4 +12,4 @@
 __email__ = "donald@stufft.io"
 
 __license__ = "BSD-2-Clause or Apache-2.0"
-__copyright__ = "2014-2019 %s" % __author__
+__copyright__ = f"2014-2019 {__author__}"
diff --git a/pkg_resources/_vendor/packaging/_manylinux.py b/pkg_resources/_vendor/packaging/_manylinux.py
index 449c655be6..1db6fa82bf 100644
--- a/pkg_resources/_vendor/packaging/_manylinux.py
+++ b/pkg_resources/_vendor/packaging/_manylinux.py
@@ -161,9 +161,7 @@ def _parse_glibc_version(version_str: str) -> Tuple[int, int]:
 @functools.lru_cache()
 def _get_glibc_version() -> Tuple[int, int]:
     version_str = _glibc_version_string()
-    if version_str is None:
-        return (-1, -1)
-    return _parse_glibc_version(version_str)
+    return (-1, -1) if version_str is None else _parse_glibc_version(version_str)
 
 
 # From PEP 513, PEP 600
@@ -178,9 +176,7 @@ def _is_compatible(name: str, arch: str, version: _GLibCVersion) -> bool:
         return True
     if hasattr(_manylinux, "manylinux_compatible"):
         result = _manylinux.manylinux_compatible(version[0], version[1], arch)
-        if result is not None:
-            return bool(result)
-        return True
+        return bool(result) if result is not None else True
     if version == _GLibCVersion(2, 5):
         if hasattr(_manylinux, "manylinux1_compatible"):
             return bool(_manylinux.manylinux1_compatible)
diff --git a/pkg_resources/_vendor/packaging/_musllinux.py b/pkg_resources/_vendor/packaging/_musllinux.py
index 706ba600a9..0d4471d827 100644
--- a/pkg_resources/_vendor/packaging/_musllinux.py
+++ b/pkg_resources/_vendor/packaging/_musllinux.py
@@ -22,10 +22,10 @@ def _parse_musl_version(output: str) -> Optional[_MuslVersion]:
     lines = [n for n in (n.strip() for n in output.splitlines()) if n]
     if len(lines) < 2 or lines[0][:4] != "musl":
         return None
-    m = re.match(r"Version (\d+)\.(\d+)", lines[1])
-    if not m:
+    if m := re.match(r"Version (\d+)\.(\d+)", lines[1]):
+        return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
+    else:
         return None
-    return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
 
 
 @functools.lru_cache()
diff --git a/pkg_resources/_vendor/packaging/_parser.py b/pkg_resources/_vendor/packaging/_parser.py
index 5a18b758fe..9138491ceb 100644
--- a/pkg_resources/_vendor/packaging/_parser.py
+++ b/pkg_resources/_vendor/packaging/_parser.py
@@ -318,10 +318,7 @@ def _parse_marker_var(tokenizer: Tokenizer) -> MarkerVar:
 
 
 def process_env_var(env_var: str) -> Variable:
-    if (
-        env_var == "platform_python_implementation"
-        or env_var == "python_implementation"
-    ):
+    if env_var in {"platform_python_implementation", "python_implementation"}:
         return Variable("platform_python_implementation")
     else:
         return Variable(env_var)
diff --git a/pkg_resources/_vendor/packaging/markers.py b/pkg_resources/_vendor/packaging/markers.py
index 8b98fca723..ddbab25c1a 100644
--- a/pkg_resources/_vendor/packaging/markers.py
+++ b/pkg_resources/_vendor/packaging/markers.py
@@ -85,10 +85,7 @@ def _format_marker(
 
     if isinstance(marker, list):
         inner = (_format_marker(m, first=False) for m in marker)
-        if first:
-            return " ".join(inner)
-        else:
-            return "(" + " ".join(inner) + ")"
+        return " ".join(inner) if first else "(" + " ".join(inner) + ")"
     elif isinstance(marker, tuple):
         return " ".join([m.serialize() for m in marker])
     else:
@@ -226,10 +223,7 @@ def __hash__(self) -> int:
         return hash((self.__class__.__name__, str(self)))
 
     def __eq__(self, other: Any) -> bool:
-        if not isinstance(other, Marker):
-            return NotImplemented
-
-        return str(self) == str(other)
+        return str(self) == str(other) if isinstance(other, Marker) else NotImplemented
 
     def evaluate(self, environment: Optional[Dict[str, str]] = None) -> bool:
         """Evaluate a marker.
diff --git a/pkg_resources/_vendor/packaging/requirements.py b/pkg_resources/_vendor/packaging/requirements.py
index f34bfa85c8..dcc28b2e7a 100644
--- a/pkg_resources/_vendor/packaging/requirements.py
+++ b/pkg_resources/_vendor/packaging/requirements.py
@@ -42,9 +42,7 @@ def __init__(self, requirement_string: str) -> None:
             if parsed_url.scheme == "file":
                 if urllib.parse.urlunparse(parsed_url) != parsed.url:
                     raise InvalidRequirement("Invalid URL given")
-            elif not (parsed_url.scheme and parsed_url.netloc) or (
-                not parsed_url.scheme and not parsed_url.netloc
-            ):
+            elif not (parsed_url.scheme and parsed_url.netloc):
                 raise InvalidRequirement(f"Invalid URL: {parsed.url}")
             self.url: Optional[str] = parsed.url
         else:
diff --git a/pkg_resources/_vendor/packaging/specifiers.py b/pkg_resources/_vendor/packaging/specifiers.py
index ba8fe37b7f..70174b33f1 100644
--- a/pkg_resources/_vendor/packaging/specifiers.py
+++ b/pkg_resources/_vendor/packaging/specifiers.py
@@ -509,7 +509,7 @@ def _compare_greater_than(self, prospective: Version, spec_str: str) -> bool:
         return True
 
     def _compare_arbitrary(self, prospective: Version, spec: str) -> bool:
-        return str(prospective).lower() == str(spec).lower()
+        return str(prospective).lower() == spec.lower()
 
     def __contains__(self, item: Union[str, Version]) -> bool:
         """Return whether or not the item is contained in this specifier.
@@ -608,11 +608,11 @@ def filter(
         ['1.3', '1.5a1']
         """
 
-        yielded = False
         found_prereleases = []
 
         kw = {"prereleases": prereleases if prereleases is not None else True}
 
+        yielded = False
         # Attempt to iterate over all the values in the iterable and if any of
         # them match, yield them.
         for version in iterable:
@@ -622,12 +622,12 @@ def filter(
                 # If our version is a prerelease, and we were not set to allow
                 # prereleases, then we'll store it for later in case nothing
                 # else matches this specifier.
-                if parsed_version.is_prerelease and not (
-                    prereleases or self.prereleases
+                if (
+                    parsed_version.is_prerelease
+                    and not prereleases
+                    and not self.prereleases
                 ):
                     found_prereleases.append(version)
-                # Either this is not a prerelease, or we should have been
-                # accepting prereleases from the beginning.
                 else:
                     yielded = True
                     yield version
@@ -636,8 +636,7 @@ def filter(
         # any values, and if we have not and we have any prereleases stored up
         # then we will go ahead and yield the prereleases.
         if not yielded and found_prereleases:
-            for version in found_prereleases:
-                yield version
+            yield from found_prereleases
 
 
 _prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
@@ -646,8 +645,7 @@ def filter(
 def _version_split(version: str) -> List[str]:
     result: List[str] = []
     for item in version.split("."):
-        match = _prefix_regex.search(item)
-        if match:
+        if match := _prefix_regex.search(item):
             result.extend(match.groups())
         else:
             result.append(item)
@@ -707,12 +705,9 @@ def __init__(
         # strip each item to remove leading/trailing whitespace.
         split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
 
-        # Parsed each individual specifier, attempting first to make it a
-        # Specifier.
-        parsed: Set[Specifier] = set()
-        for specifier in split_specifiers:
-            parsed.add(Specifier(specifier))
-
+        parsed: Set[Specifier] = {
+            Specifier(specifier) for specifier in split_specifiers
+        }
         # Turn our parsed specifiers into a frozen set and save them for later.
         self._specs = frozenset(parsed)
 
@@ -730,12 +725,7 @@ def prereleases(self) -> Optional[bool]:
         # If we don't have any specifiers, and we don't have a forced value,
         # then we'll just return None since we don't know if this should have
         # pre-releases or not.
-        if not self._specs:
-            return None
-
-        # Otherwise we'll see if any of the given specifiers accept
-        # prereleases, if any of them do we'll return True, otherwise False.
-        return any(s.prereleases for s in self._specs)
+        return None if not self._specs else any(s.prereleases for s in self._specs)
 
     @prereleases.setter
     def prereleases(self, value: bool) -> None:
diff --git a/pkg_resources/_vendor/packaging/tags.py b/pkg_resources/_vendor/packaging/tags.py
index 76d243414d..4abd3583b5 100644
--- a/pkg_resources/_vendor/packaging/tags.py
+++ b/pkg_resources/_vendor/packaging/tags.py
@@ -196,10 +196,7 @@ def cpython_tags(
     interpreter = f"cp{_version_nodot(python_version[:2])}"
 
     if abis is None:
-        if len(python_version) > 1:
-            abis = _cpython_abis(python_version, warn)
-        else:
-            abis = []
+        abis = _cpython_abis(python_version, warn) if len(python_version) > 1 else []
     abis = list(abis)
     # 'abi3' and 'none' are explicitly handled later.
     for explicit_abi in ("abi3", "none"):
@@ -285,10 +282,7 @@ def generic_tags(
         interp_name = interpreter_name()
         interp_version = interpreter_version(warn=warn)
         interpreter = "".join([interp_name, interp_version])
-    if abis is None:
-        abis = _generic_abi()
-    else:
-        abis = list(abis)
+    abis = _generic_abi() if abis is None else list(abis)
     platforms = list(platforms or platform_tags())
     if "none" not in abis:
         abis.append("none")
@@ -341,10 +335,7 @@ def _mac_arch(arch: str, is_32bit: bool = _32_BIT_INTERPRETER) -> str:
     if not is_32bit:
         return arch
 
-    if arch.startswith("ppc"):
-        return "ppc"
-
-    return "i386"
+    return "ppc" if arch.startswith("ppc") else "i386"
 
 
 def _mac_binary_formats(version: MacVersion, cpu_arch: str) -> List[str]:
@@ -411,12 +402,8 @@ def mac_platforms(
             version = cast("MacVersion", tuple(map(int, version_str.split(".")[:2])))
     else:
         version = version
-    if arch is None:
-        arch = _mac_arch(cpu_arch)
-    else:
-        arch = arch
-
-    if (10, 0) <= version and version < (11, 0):
+    arch = _mac_arch(cpu_arch) if arch is None else arch
+    if (10, 0) <= version < (11, 0):
         # Prior to Mac OS 11, each yearly release of Mac OS bumped the
         # "minor" version number.  The major version was always 10.
         for minor_version in range(version[1], -1, -1):
@@ -457,9 +444,9 @@ def mac_platforms(
                         binary_format=binary_format,
                     )
         else:
+            binary_format = "universal2"
             for minor_version in range(16, 3, -1):
                 compat_version = 10, minor_version
-                binary_format = "universal2"
                 yield "macosx_{major}_{minor}_{binary_format}".format(
                     major=compat_version[0],
                     minor=compat_version[1],
@@ -512,10 +499,7 @@ def interpreter_version(*, warn: bool = False) -> str:
     Returns the version of the running interpreter.
     """
     version = _get_config_var("py_version_nodot", warn=warn)
-    if version:
-        version = str(version)
-    else:
-        version = _version_nodot(sys.version_info[:2])
+    version = str(version) if version else _version_nodot(sys.version_info[:2])
     return version
 
 
@@ -540,7 +524,7 @@ def sys_tags(*, warn: bool = False) -> Iterator[Tag]:
     if interp_name == "pp":
         interp = "pp3"
     elif interp_name == "cp":
-        interp = "cp" + interpreter_version(warn=warn)
+        interp = f"cp{interpreter_version(warn=warn)}"
     else:
         interp = None
     yield from compatible_tags(interpreter=interp)
diff --git a/pkg_resources/_vendor/packaging/version.py b/pkg_resources/_vendor/packaging/version.py
index b30e8cbf84..048b201ca9 100644
--- a/pkg_resources/_vendor/packaging/version.py
+++ b/pkg_resources/_vendor/packaging/version.py
@@ -470,20 +470,13 @@ def _parse_letter_version(
             letter = "a"
         elif letter == "beta":
             letter = "b"
-        elif letter in ["c", "pre", "preview"]:
+        elif letter in {"c", "pre", "preview"}:
             letter = "rc"
-        elif letter in ["rev", "r"]:
+        elif letter in {"rev", "r"}:
             letter = "post"
 
         return letter, int(number)
-    if not letter and number:
-        # We assume if we are given a number, but we are not given a letter
-        # then this is using the implicit post release syntax (e.g. 1.0-1)
-        letter = "post"
-
-        return letter, int(number)
-
-    return None
+    return ("post", int(number)) if number else None
 
 
 _local_version_separators = re.compile(r"[\._-]")
@@ -533,19 +526,9 @@ def _cmpkey(
         _pre = pre
 
     # Versions without a post segment should sort before those with one.
-    if post is None:
-        _post: PrePostDevType = NegativeInfinity
-
-    else:
-        _post = post
-
+    _post = NegativeInfinity if post is None else post
     # Versions without a development segment should sort after those with one.
-    if dev is None:
-        _dev: PrePostDevType = Infinity
-
-    else:
-        _dev = dev
-
+    _dev = Infinity if dev is None else dev
     if local is None:
         # Versions without a local segment should sort before those with one.
         _local: LocalType = NegativeInfinity
diff --git a/pkg_resources/_vendor/platformdirs/android.py b/pkg_resources/_vendor/platformdirs/android.py
index eda8093512..df09c53254 100644
--- a/pkg_resources/_vendor/platformdirs/android.py
+++ b/pkg_resources/_vendor/platformdirs/android.py
@@ -90,12 +90,14 @@ def _android_folder() -> str | None:
     except Exception:
         # if fails find an android folder looking path on the sys.path
         pattern = re.compile(r"/data/(data|user/\d+)/(.+)/files")
-        for path in sys.path:
-            if pattern.match(path):
-                result = path.split("/files")[0]
-                break
-        else:
-            result = None
+        result = next(
+            (
+                path.split("/files")[0]
+                for path in sys.path
+                if pattern.match(path)
+            ),
+            None,
+        )
     return result
 
 
diff --git a/pkg_resources/_vendor/platformdirs/unix.py b/pkg_resources/_vendor/platformdirs/unix.py
index 9aca5a0305..bf37a6994f 100644
--- a/pkg_resources/_vendor/platformdirs/unix.py
+++ b/pkg_resources/_vendor/platformdirs/unix.py
@@ -54,7 +54,7 @@ def site_data_dir(self) -> str:
     def _with_multi_path(self, path: str) -> str:
         path_list = path.split(os.pathsep)
         if not self.multipath:
-            path_list = path_list[0:1]
+            path_list = path_list[:1]
         path_list = [self._append_app_name_and_version(os.path.expanduser(p)) for p in path_list]
         return os.pathsep.join(path_list)
 
diff --git a/pkg_resources/_vendor/typing_extensions.py b/pkg_resources/_vendor/typing_extensions.py
index ef42417c20..a8848cb099 100644
--- a/pkg_resources/_vendor/typing_extensions.py
+++ b/pkg_resources/_vendor/typing_extensions.py
@@ -163,9 +163,7 @@ def __instancecheck__(self, obj):
             return super().__instancecheck__(obj)
 
         def __repr__(self):
-            if self is Any:
-                return "typing_extensions.Any"
-            return super().__repr__()
+            return "typing_extensions.Any" if self is Any else super().__repr__()
 
     class Any(metaclass=_AnyMeta):
         """Special type indicating an unconstrained type.
@@ -193,7 +191,7 @@ def __new__(cls, *args, **kwargs):
     class _FinalForm(typing._SpecialForm, _root=True):
 
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             item = typing._type_check(parameters,
@@ -265,7 +263,7 @@ def IntVar(name):
     class _LiteralForm(typing._SpecialForm, _root=True):
 
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             return typing._GenericAlias(self, parameters)
@@ -768,20 +766,18 @@ def __new__(cls, name, bases, ns, total=True):
             for annotation_key, annotation_type in own_annotations.items():
                 annotation_origin = get_origin(annotation_type)
                 if annotation_origin is Annotated:
-                    annotation_args = get_args(annotation_type)
-                    if annotation_args:
+                    if annotation_args := get_args(annotation_type):
                         annotation_type = annotation_args[0]
                         annotation_origin = get_origin(annotation_type)
 
-                if annotation_origin is Required:
-                    required_keys.add(annotation_key)
-                elif annotation_origin is NotRequired:
-                    optional_keys.add(annotation_key)
-                elif total:
+                if (
+                    annotation_origin is Required
+                    or annotation_origin is not NotRequired
+                    and total
+                ):
                     required_keys.add(annotation_key)
                 else:
                     optional_keys.add(annotation_key)
-
             tp_dict.__annotations__ = annotations
             tp_dict.__required_keys__ = frozenset(required_keys)
             tp_dict.__optional_keys__ = frozenset(optional_keys)
@@ -877,9 +873,7 @@ def _strip_extras(t):
             return _strip_extras(t.__args__[0])
         if isinstance(t, typing._GenericAlias):
             stripped_args = tuple(_strip_extras(a) for a in t.__args__)
-            if stripped_args == t.__args__:
-                return t
-            return t.copy_with(stripped_args)
+            return t if stripped_args == t.__args__ else t.copy_with(stripped_args)
         if hasattr(types, "GenericAlias") and isinstance(t, types.GenericAlias):
             stripped_args = tuple(_strip_extras(a) for a in t.__args__)
             if stripped_args == t.__args__:
@@ -1080,9 +1074,7 @@ def get_origin(tp):
         if isinstance(tp, (typing._GenericAlias, _typing_GenericAlias, _BaseGenericAlias,
                            ParamSpecArgs, ParamSpecKwargs)):
             return tp.__origin__
-        if tp is typing.Generic:
-            return typing.Generic
-        return None
+        return typing.Generic if tp is typing.Generic else None
 
     def get_args(tp):
         """Get type arguments with all substitutions performed.
@@ -1114,7 +1106,7 @@ def get_args(tp):
 elif sys.version_info[:2] >= (3, 9):
     class _TypeAliasForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     @_TypeAliasForm
     def TypeAlias(self, parameters):
@@ -1133,7 +1125,7 @@ def TypeAlias(self, parameters):
 else:
     class _TypeAliasForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     TypeAlias = _TypeAliasForm('TypeAlias',
                                doc="""Special marker indicating that an assignment should
@@ -1449,7 +1441,7 @@ def Concatenate(self, parameters):
 else:
     class _ConcatenateForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             return _concatenate_getitem(self, parameters)
@@ -1474,7 +1466,7 @@ def __getitem__(self, parameters):
 elif sys.version_info[:2] >= (3, 9):
     class _TypeGuardForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     @_TypeGuardForm
     def TypeGuard(self, parameters):
@@ -1527,7 +1519,7 @@ def is_str(val: Union[str, float]):
     class _TypeGuardForm(typing._SpecialForm, _root=True):
 
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             item = typing._type_check(parameters,
@@ -1704,7 +1696,7 @@ def int_or_str(arg: int | str) -> None:
 elif sys.version_info[:2] >= (3, 9):
     class _ExtensionsSpecialForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     @_ExtensionsSpecialForm
     def Required(self, parameters):
@@ -1746,7 +1738,7 @@ class Movie(TypedDict):
 else:
     class _RequiredForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             item = typing._type_check(parameters,
@@ -1791,7 +1783,7 @@ class Movie(TypedDict):
 elif sys.version_info[:2] >= (3, 9):
     class _UnpackSpecialForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     class _UnpackAlias(typing._GenericAlias, _root=True):
         __class__ = typing.TypeVar
@@ -1820,7 +1812,7 @@ class _UnpackAlias(typing._GenericAlias, _root=True):
 
     class _UnpackForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             item = typing._type_check(parameters,
@@ -1939,7 +1931,7 @@ def __eq__(self, other):
         def __reduce__(self):
             return self.__name__
 
-        def __init_subclass__(self, *args, **kwds):
+        def __init_subclass__(cls, *args, **kwds):
             if '_root' not in kwds:
                 raise TypeError("Cannot subclass special typing classes")
 
@@ -2178,7 +2170,7 @@ def __new__(cls, typename, bases, ns):
             # update from user namespace without overriding special namedtuple attributes
             for key in ns:
                 if key in _prohibited_namedtuple_fields:
-                    raise AttributeError("Cannot overwrite NamedTuple attribute " + key)
+                    raise AttributeError(f"Cannot overwrite NamedTuple attribute {key}")
                 elif key not in _special_namedtuple_fields and key not in nm_tpl._fields:
                     setattr(nm_tpl, key, ns[key])
             if typing.Generic in bases:
diff --git a/pkg_resources/_vendor/zipp.py b/pkg_resources/_vendor/zipp.py
index 26b723c1fd..d6abd364af 100644
--- a/pkg_resources/_vendor/zipp.py
+++ b/pkg_resources/_vendor/zipp.py
@@ -93,7 +93,7 @@ def resolve_dir(self, name):
         as a directory (with the trailing slash).
         """
         names = self._name_set()
-        dirname = name + '/'
+        dirname = f'{name}/'
         dir_match = name not in names and dirname in names
         return dirname if dir_match else name
 
diff --git a/pkg_resources/extern/__init__.py b/pkg_resources/extern/__init__.py
index 948bcc6094..1ae0f0ee4c 100644
--- a/pkg_resources/extern/__init__.py
+++ b/pkg_resources/extern/__init__.py
@@ -18,19 +18,19 @@ def search_path(self):
         """
         Search first the vendor package then as a natural package.
         """
-        yield self.vendor_pkg + '.'
+        yield f'{self.vendor_pkg}.'
         yield ''
 
     def _module_matches_namespace(self, fullname):
         """Figure out if the target module is vendored."""
-        root, base, target = fullname.partition(self.root_name + '.')
+        root, base, target = fullname.partition(f'{self.root_name}.')
         return not root and any(map(target.startswith, self.vendored_names))
 
     def load_module(self, fullname):
         """
         Iterate over the search path to locate and load fullname.
         """
-        root, base, target = fullname.partition(self.root_name + '.')
+        root, base, target = fullname.partition(f'{self.root_name}.')
         for prefix in self.search_path:
             try:
                 extant = prefix + target
diff --git a/pkg_resources/tests/test_pkg_resources.py b/pkg_resources/tests/test_pkg_resources.py
index c90dca7ff3..d4b09ba838 100644
--- a/pkg_resources/tests/test_pkg_resources.py
+++ b/pkg_resources/tests/test_pkg_resources.py
@@ -122,9 +122,8 @@ def test_resource_filename_rewrites_on_change(self):
         filename = zp.get_resource_filename(manager, 'data.dat')
         actual = datetime.datetime.fromtimestamp(os.stat(filename).st_mtime)
         assert actual == self.ref_time
-        f = open(filename, 'w')
-        f.write('hello, world?')
-        f.close()
+        with open(filename, 'w') as f:
+            f.write('hello, world?')
         ts = timestamp(self.ref_time)
         os.utime(filename, (ts, ts))
         filename = zp.get_resource_filename(manager, 'data.dat')
@@ -138,7 +137,7 @@ def test_get_cache_path(self):
         mgr = pkg_resources.ResourceManager()
         path = mgr.get_cache_path('foo')
         type_ = str(type(path))
-        message = "Unexpected type from get_cache_path: " + type_
+        message = f"Unexpected type from get_cache_path: {type_}"
         assert isinstance(path, str), message
 
     def test_get_cache_path_race(self, tmpdir):
@@ -229,8 +228,8 @@ def test_get_metadata__bad_utf8(tmpdir):
         "codec can't decode byte 0xe9 in position 1: "
         'invalid continuation byte in METADATA file at path: '
     )
-    assert expected in actual, 'actual: {}'.format(actual)
-    assert actual.endswith(metadata_path), 'actual: {}'.format(actual)
+    assert expected in actual, f'actual: {actual}'
+    assert actual.endswith(metadata_path), f'actual: {actual}'
 
 
 def make_distribution_no_version(tmpdir, basename):
@@ -270,11 +269,11 @@ def test_distribution_version_missing(
     """
     Test Distribution.version when the "Version" header is missing.
     """
-    basename = 'foo.{}'.format(suffix)
+    basename = f'foo.{suffix}'
     dist, dist_dir = make_distribution_no_version(tmpdir, basename)
 
-    expected_text = ("Missing 'Version:' header and/or {} file at path: ").format(
-        expected_filename
+    expected_text = (
+        f"Missing 'Version:' header and/or {expected_filename} file at path: "
     )
     metadata_path = os.path.join(dist_dir, expected_filename)
 
@@ -365,7 +364,7 @@ class Environment(str):
         env = Environment(tmpdir)
         tmpdir.chmod(stat.S_IRWXU)
         subs = 'home', 'lib', 'scripts', 'data', 'egg-base'
-        env.paths = dict((dirname, str(tmpdir / dirname)) for dirname in subs)
+        env.paths = {dirname: str(tmpdir / dirname) for dirname in subs}
         list(map(os.mkdir, env.paths.values()))
         return env
 
diff --git a/pkg_resources/tests/test_resources.py b/pkg_resources/tests/test_resources.py
index c90584a882..45083db229 100644
--- a/pkg_resources/tests/test_resources.py
+++ b/pkg_resources/tests/test_resources.py
@@ -52,7 +52,7 @@ class TestDistro:
     def testCollection(self):
         # empty path should produce no distributions
         ad = pkg_resources.Environment([], platform=None, python=None)
-        assert list(ad) == []
+        assert not list(ad)
         assert ad['FooPkg'] == []
         ad.add(dist_from_fn("FooPkg-1.3_1.egg"))
         ad.add(dist_from_fn("FooPkg-1.4-py2.4-win32.egg"))
@@ -181,7 +181,7 @@ def testResolve(self):
         ad = pkg_resources.Environment([])
         ws = WorkingSet([])
         # Resolving no requirements -> nothing to install
-        assert list(ws.resolve([], ad)) == []
+        assert not list(ws.resolve([], ad))
         # Request something not in the collection -> DistributionNotFound
         with pytest.raises(pkg_resources.DistributionNotFound):
             ws.resolve(parse_requirements("Foo"), ad)
@@ -194,7 +194,7 @@ def testResolve(self):
         ad.add(Distribution.from_filename("Foo-0.9.egg"))
 
         # Request thing(s) that are available -> list to activate
-        for i in range(3):
+        for _ in range(3):
             targets = list(ws.resolve(parse_requirements("Foo"), ad))
             assert targets == [Foo]
             list(map(ws.add, targets))
@@ -224,7 +224,7 @@ def test_environment_marker_evaluation_negative(self):
         ad = pkg_resources.Environment([])
         ws = WorkingSet([])
         res = ws.resolve(parse_requirements("Foo;python_version<'2'"), ad)
-        assert list(res) == []
+        assert not list(res)
 
     def test_environment_marker_evaluation_positive(self):
         ad = pkg_resources.Environment([])
@@ -404,8 +404,7 @@ def test_resolve_conflicts_with_prior(self):
         with pytest.raises(VersionConflict) as vc:
             ws.resolve(parse_requirements("Foo\nBar\n"))
 
-        msg = "Baz 1.0 is installed but Baz==2.0 is required by "
-        msg += repr(set(['Bar']))
+        msg = "Baz 1.0 is installed but Baz==2.0 is required by " + repr({'Bar'})
         assert vc.value.report() == msg
 
 
@@ -561,8 +560,8 @@ def testOptionsAndHashing(self):
         r1 = Requirement.parse("Twisted[foo,bar]>=1.2")
         r2 = Requirement.parse("Twisted[bar,FOO]>=1.2")
         assert r1 == r2
-        assert set(r1.extras) == set(("foo", "bar"))
-        assert set(r2.extras) == set(("foo", "bar"))
+        assert set(r1.extras) == {"foo", "bar"}
+        assert set(r2.extras) == {"foo", "bar"}
         assert hash(r1) == hash(r2)
         assert hash(r1) == hash((
             "twisted",
@@ -609,7 +608,7 @@ def testSetuptoolsProjectName(self):
 
 class TestParsing:
     def testEmptyParse(self):
-        assert list(parse_requirements('')) == []
+        assert not list(parse_requirements(''))
 
     def testYielding(self):
         for inp, out in [
@@ -770,7 +769,7 @@ def symlinked_tmpdir(self, tmpdir):
             yield str(tmpdir)
             return
 
-        link_name = str(tmpdir) + '-linked'
+        link_name = f'{str(tmpdir)}-linked'
         os.symlink(str(tmpdir), link_name)
         try:
             yield type(tmpdir)(link_name)
diff --git a/pkg_resources/tests/test_working_set.py b/pkg_resources/tests/test_working_set.py
index 57f62b5492..30c021bdb4 100644
--- a/pkg_resources/tests/test_working_set.py
+++ b/pkg_resources/tests/test_working_set.py
@@ -49,10 +49,9 @@ def parse_distributions(s):
             metadata = Metadata(('requires.txt', requires))
         else:
             metadata = None
-        dist = pkg_resources.Distribution(
+        yield pkg_resources.Distribution(
             project_name=name, version=version, metadata=metadata
         )
-        yield dist
 
 
 class FakeInstaller:
@@ -83,10 +82,7 @@ def parametrize_test_working_set_resolve(*test_list):
         installed_dists = list(parse_distributions(installed_dists))
         installable_dists = list(parse_distributions(installable_dists))
         requirements = list(pkg_resources.parse_requirements(requirements))
-        for id_, replace_conflicting, expected in (
-            (name, False, expected1),
-            (name + '_replace_conflicting', True, expected2),
-        ):
+        for id_, replace_conflicting, expected in ((name, False, expected1), (f'{name}_replace_conflicting', True, expected2)):
             idlist.append(id_)
             expected = strip_comments(expected.strip())
             if re.match(r'\w+$', expected):
diff --git a/setuptools/__init__.py b/setuptools/__init__.py
index 563ca1c4ba..eb07bff76b 100644
--- a/setuptools/__init__.py
+++ b/setuptools/__init__.py
@@ -79,7 +79,8 @@ def _fetch_build_eggs(dist):
     try:
         dist.fetch_build_eggs(dist.setup_requires)
     except Exception as ex:
-        msg = """
+        if "InvalidVersion" in ex.__class__.__name__:
+            msg = """
         It is possible a package already installed in your system
         contains an version that is invalid according to PEP 440.
         You can try `pip install --use-pep517` as a workaround for this problem,
@@ -88,7 +89,6 @@ def _fetch_build_eggs(dist):
         If the problem refers to a package that is not installed yet,
         please contact that package's maintainers or distributors.
         """
-        if "InvalidVersion" in ex.__class__.__name__:
             if hasattr(ex, "add_note"):
                 ex.add_note(msg)  # PEP 678
             else:
@@ -180,9 +180,7 @@ def _ensure_stringlike(self, option, what, default=None):
             setattr(self, option, default)
             return default
         elif not isinstance(val, str):
-            raise DistutilsOptionError(
-                "'%s' must be a %s (got `%s`)" % (option, what, val)
-            )
+            raise DistutilsOptionError(f"'{option}' must be a {what} (got `{val}`)")
         return val
 
     def ensure_string_list(self, option):
@@ -203,10 +201,7 @@ def ensure_string_list(self, option):
         elif isinstance(val, str):
             setattr(self, option, re.split(r',\s*|\s+', val))
         else:
-            if isinstance(val, list):
-                ok = all(isinstance(v, str) for v in val)
-            else:
-                ok = False
+            ok = all(isinstance(v, str) for v in val) if isinstance(val, list) else False
             if not ok:
                 raise DistutilsOptionError(
                     "'%s' must be a list of strings (got %r)" % (option, val)
diff --git a/setuptools/_core_metadata.py b/setuptools/_core_metadata.py
index 4bf3c7c947..9980827605 100644
--- a/setuptools/_core_metadata.py
+++ b/setuptools/_core_metadata.py
@@ -40,32 +40,24 @@ def rfc822_unescape(content: str) -> str:
 def _read_field_from_msg(msg: Message, field: str) -> Optional[str]:
     """Read Message header field."""
     value = msg[field]
-    if value == 'UNKNOWN':
-        return None
-    return value
+    return None if value == 'UNKNOWN' else value
 
 
 def _read_field_unescaped_from_msg(msg: Message, field: str) -> Optional[str]:
     """Read Message header field and apply rfc822_unescape."""
     value = _read_field_from_msg(msg, field)
-    if value is None:
-        return value
-    return rfc822_unescape(value)
+    return value if value is None else rfc822_unescape(value)
 
 
 def _read_list_from_msg(msg: Message, field: str) -> Optional[List[str]]:
     """Read Message header field and return all results as list."""
     values = msg.get_all(field, None)
-    if values == []:
-        return None
-    return values
+    return None if values == [] else values
 
 
 def _read_payload_from_msg(msg: Message) -> Optional[str]:
     value = msg.get_payload().strip()
-    if value == 'UNKNOWN' or not value:
-        return None
-    return value
+    return None if value == 'UNKNOWN' or not value else value
 
 
 def read_pkg_file(self, file):
diff --git a/setuptools/_distutils/_collections.py b/setuptools/_distutils/_collections.py
index 5ad21cc7c9..6316f8e22a 100644
--- a/setuptools/_distutils/_collections.py
+++ b/setuptools/_distutils/_collections.py
@@ -175,8 +175,7 @@ def get(self, key, default=None):
 
     def _find_first_match_(self, keys, item):
         is_match = functools.partial(self.match, item)
-        matches = list(filter(is_match, keys))
-        if matches:
+        if matches := list(filter(is_match, keys)):
             return matches[0]
         raise KeyError(item)
 
diff --git a/setuptools/_distutils/_modified.py b/setuptools/_distutils/_modified.py
index fbb95a8f27..1839a786dd 100644
--- a/setuptools/_distutils/_modified.py
+++ b/setuptools/_distutils/_modified.py
@@ -24,7 +24,7 @@ def newer(source, target):
     Raises DistutilsFileError if 'source' does not exist.
     """
     if not os.path.exists(source):
-        raise DistutilsFileError("file '%s' does not exist" % os.path.abspath(source))
+        raise DistutilsFileError(f"file '{os.path.abspath(source)}' does not exist")
 
     return _newer(source, target)
 
diff --git a/setuptools/_distutils/_msvccompiler.py b/setuptools/_distutils/_msvccompiler.py
index 4f081c7e92..884bfe58b1 100644
--- a/setuptools/_distutils/_msvccompiler.py
+++ b/setuptools/_distutils/_msvccompiler.py
@@ -101,10 +101,7 @@ def _find_vc2017():
         return None, None
 
     path = os.path.join(path, "VC", "Auxiliary", "Build")
-    if os.path.isdir(path):
-        return 15, path
-
-    return None, None
+    return (15, path) if os.path.isdir(path) else (None, None)
 
 
 PLAT_SPEC_TO_RUNTIME = {
@@ -151,14 +148,12 @@ def _get_vc_env(plat_spec):
         log.error(exc.output)
         raise DistutilsPlatformError(f"Error executing {exc.cmd}")
 
-    env = {
+    return {
         key.lower(): value
         for key, _, value in (line.partition('=') for line in out.splitlines())
         if key and value
     }
 
-    return env
-
 
 def _find_exe(exe, paths=None):
     """Return path to an MSVC executable program.
@@ -367,14 +362,14 @@ def compile(  # noqa: C901
                 src = os.path.abspath(src)
 
             if ext in self._c_extensions:
-                input_opt = "/Tc" + src
+                input_opt = f"/Tc{src}"
             elif ext in self._cpp_extensions:
-                input_opt = "/Tp" + src
+                input_opt = f"/Tp{src}"
                 add_cpp_opts = True
             elif ext in self._rc_extensions:
                 # compile .RC to .RES file
                 input_opt = src
-                output_opt = "/fo" + obj
+                output_opt = f"/fo{obj}"
                 try:
                     self.spawn([self.rc] + pp_opts + [output_opt, input_opt])
                 except DistutilsExecError as msg:
@@ -398,9 +393,9 @@ def compile(  # noqa: C901
                     # first compile .MC to .RC and .H file
                     self.spawn([self.mc, '-h', h_dir, '-r', rc_dir, src])
                     base, _ = os.path.splitext(os.path.basename(src))
-                    rc_file = os.path.join(rc_dir, base + '.rc')
+                    rc_file = os.path.join(rc_dir, f'{base}.rc')
                     # then compile .RC to .RES file
-                    self.spawn([self.rc, "/fo" + obj, rc_file])
+                    self.spawn([self.rc, f"/fo{obj}", rc_file])
 
                 except DistutilsExecError as msg:
                     raise CompileError(msg)
@@ -412,7 +407,7 @@ def compile(  # noqa: C901
             args = [self.cc] + compile_opts + pp_opts
             if add_cpp_opts:
                 args.append('/EHsc')
-            args.extend((input_opt, "/Fo" + obj))
+            args.extend((input_opt, f"/Fo{obj}"))
             args.extend(extra_postargs)
 
             try:
@@ -431,9 +426,7 @@ def create_static_lib(
         output_filename = self.library_filename(output_libname, output_dir=output_dir)
 
         if self._need_link(objects, output_filename):
-            lib_args = objects + ['/OUT:' + output_filename]
-            if debug:
-                pass  # XXX what goes here?
+            lib_args = objects + [f'/OUT:{output_filename}']
             try:
                 log.debug('Executing "%s" %s', self.lib, ' '.join(lib_args))
                 self.spawn([self.lib] + lib_args)
@@ -477,10 +470,14 @@ def link(
         if self._need_link(objects, output_filename):
             ldflags = self._ldflags[target_desc, debug]
 
-            export_opts = ["/EXPORT:" + sym for sym in (export_symbols or [])]
+            export_opts = [f"/EXPORT:{sym}" for sym in (export_symbols or [])]
 
             ld_args = (
-                ldflags + lib_opts + export_opts + objects + ['/OUT:' + output_filename]
+                ldflags
+                + lib_opts
+                + export_opts
+                + objects
+                + [f'/OUT:{output_filename}']
             )
 
             # The MSVC linker generates .lib and .exp files, which cannot be
@@ -494,7 +491,7 @@ def link(
                     os.path.basename(output_filename)
                 )
                 implib_file = os.path.join(build_temp, self.library_filename(dll_name))
-                ld_args.append('/IMPLIB:' + implib_file)
+                ld_args.append(f'/IMPLIB:{implib_file}')
 
             if extra_preargs:
                 ld_args[:0] = extra_preargs
@@ -541,7 +538,7 @@ def _fallback_spawn(self, cmd, env):
     # ccompiler.py.
 
     def library_dir_option(self, dir):
-        return "/LIBPATH:" + dir
+        return f"/LIBPATH:{dir}"
 
     def runtime_library_dir_option(self, dir):
         raise DistutilsPlatformError(
@@ -554,10 +551,7 @@ def library_option(self, lib):
     def find_library_file(self, dirs, lib, debug=0):
         # Prefer a debugging library if found (and requested), but deal
         # with it if we don't have one.
-        if debug:
-            try_names = [lib + "_d", lib]
-        else:
-            try_names = [lib]
+        try_names = [f"{lib}_d", lib] if debug else [lib]
         for dir in dirs:
             for name in try_names:
                 libfile = os.path.join(dir, self.library_filename(name))
diff --git a/setuptools/_distutils/archive_util.py b/setuptools/_distutils/archive_util.py
index 7f9e1e00cc..6f846d394f 100644
--- a/setuptools/_distutils/archive_util.py
+++ b/setuptools/_distutils/archive_util.py
@@ -37,9 +37,7 @@ def _get_gid(name):
         result = getgrnam(name)
     except KeyError:
         result = None
-    if result is not None:
-        return result[2]
-    return None
+    return result[2] if result is not None else None
 
 
 def _get_uid(name):
@@ -50,9 +48,7 @@ def _get_uid(name):
         result = getpwnam(name)
     except KeyError:
         result = None
-    if result is not None:
-        return result[2]
-    return None
+    return result[2] if result is not None else None
 
 
 def make_tarball(
@@ -89,7 +85,7 @@ def make_tarball(
             "'xz' or 'compress'"
         )
 
-    archive_name = base_name + '.tar'
+    archive_name = f'{base_name}.tar'
     if compress != 'compress':
         archive_name += compress_ext.get(compress, '')
 
@@ -113,7 +109,7 @@ def _set_uid_gid(tarinfo):
         return tarinfo
 
     if not dry_run:
-        tar = tarfile.open(archive_name, 'w|%s' % tar_compression[compress])
+        tar = tarfile.open(archive_name, f'w|{tar_compression[compress]}')
         try:
             tar.add(base_dir, filter=_set_uid_gid)
         finally:
@@ -134,7 +130,7 @@ def _set_uid_gid(tarinfo):
     return archive_name
 
 
-def make_zipfile(base_name, base_dir, verbose=0, dry_run=0):  # noqa: C901
+def make_zipfile(base_name, base_dir, verbose=0, dry_run=0):    # noqa: C901
     """Create a zip file from all the files under 'base_dir'.
 
     The output zip file will be named 'base_name' + ".zip".  Uses either the
@@ -143,17 +139,13 @@ def make_zipfile(base_name, base_dir, verbose=0, dry_run=0):  # noqa: C901
     available, raises DistutilsExecError.  Returns the name of the output zip
     file.
     """
-    zip_filename = base_name + ".zip"
+    zip_filename = f"{base_name}.zip"
     mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
 
     # If zipfile module is not available, try spawning an external
     # 'zip' command.
     if zipfile is None:
-        if verbose:
-            zipoptions = "-r"
-        else:
-            zipoptions = "-rq"
-
+        zipoptions = "-r" if verbose else "-rq"
         try:
             spawn(["zip", zipoptions, zip_filename, base_dir], dry_run=dry_run)
         except DistutilsExecError:
@@ -213,10 +205,9 @@ def check_archive_formats(formats):
 
     If all formats are known, returns None
     """
-    for format in formats:
-        if format not in ARCHIVE_FORMATS:
-            return format
-    return None
+    return next(
+        (format for format in formats if format not in ARCHIVE_FORMATS), None
+    )
 
 
 def make_archive(
@@ -260,7 +251,7 @@ def make_archive(
     try:
         format_info = ARCHIVE_FORMATS[format]
     except KeyError:
-        raise ValueError("unknown archive format '%s'" % format)
+        raise ValueError(f"unknown archive format '{format}'")
 
     func = format_info[0]
     for arg, val in format_info[1]:
diff --git a/setuptools/_distutils/bcppcompiler.py b/setuptools/_distutils/bcppcompiler.py
index 3c2ba15410..82d7d9f665 100644
--- a/setuptools/_distutils/bcppcompiler.py
+++ b/setuptools/_distutils/bcppcompiler.py
@@ -131,17 +131,11 @@ def compile(  # noqa: C901
                 continue  # the 'for' loop
 
             # The next two are both for the real compiler.
-            if ext in self._c_extensions:
+            if ext in self._c_extensions or ext not in self._cpp_extensions:
                 input_opt = ""
-            elif ext in self._cpp_extensions:
-                input_opt = "-P"
             else:
-                # Unknown file type -- no extra options.  The compiler
-                # will probably fail, but let it just in case this is a
-                # file the compiler recognizes even if we don't.
-                input_opt = ""
-
-            output_opt = "-o" + obj
+                input_opt = "-P"
+            output_opt = f"-o{obj}"
 
             # Compiler command line syntax is: "bcc32 [options] file(s)".
             # Note that the source file names must appear at the end of
@@ -170,8 +164,6 @@ def create_static_lib(
 
         if self._need_link(objects, output_filename):
             lib_args = [output_filename, '/u'] + objects
-            if debug:
-                pass  # XXX what goes here?
             try:
                 self.spawn([self.lib] + lib_args)
             except DistutilsExecError as msg:
@@ -218,17 +210,10 @@ def link(  # noqa: C901
             # Figure out linker args based on type of target.
             if target_desc == CCompiler.EXECUTABLE:
                 startup_obj = 'c0w32'
-                if debug:
-                    ld_args = self.ldflags_exe_debug[:]
-                else:
-                    ld_args = self.ldflags_exe[:]
+                ld_args = self.ldflags_exe_debug[:] if debug else self.ldflags_exe[:]
             else:
                 startup_obj = 'c0d32'
-                if debug:
-                    ld_args = self.ldflags_shared_debug[:]
-                else:
-                    ld_args = self.ldflags_shared[:]
-
+                ld_args = self.ldflags_shared_debug[:] if debug else self.ldflags_shared[:]
             # Create a temporary exports file for use by the linker
             if export_symbols is None:
                 def_file = ''
@@ -236,11 +221,10 @@ def link(  # noqa: C901
                 head, tail = os.path.split(output_filename)
                 modname, ext = os.path.splitext(tail)
                 temp_dir = os.path.dirname(objects[0])  # preserve tree structure
-                def_file = os.path.join(temp_dir, '%s.def' % modname)
+                def_file = os.path.join(temp_dir, f'{modname}.def')
                 contents = ['EXPORTS']
-                for sym in export_symbols or []:
-                    contents.append('  {}=_{}'.format(sym, sym))
-                self.execute(write_file, (def_file, contents), "writing %s" % def_file)
+                contents.extend(f'  {sym}=_{sym}' for sym in export_symbols or [])
+                self.execute(write_file, (def_file, contents), f"writing {def_file}")
 
             # Borland C++ has problems with '/' in paths
             objects2 = map(os.path.normpath, objects)
@@ -256,7 +240,7 @@ def link(  # noqa: C901
                     objects.append(file)
 
             for ell in library_dirs:
-                ld_args.append("/L%s" % os.path.normpath(ell))
+                ld_args.append(f"/L{os.path.normpath(ell)}")
             ld_args.append("/L.")  # we sometimes use relative paths
 
             # list of object files
@@ -326,10 +310,10 @@ def find_library_file(self, dirs, lib, debug=0):
         # compiler they care about, since (almost?) every Windows compiler
         # seems to have a different format for static libraries.
         if debug:
-            dlib = lib + "_d"
-            try_names = (dlib + "_bcpp", lib + "_bcpp", dlib, lib)
+            dlib = f"{lib}_d"
+            try_names = f"{dlib}_bcpp", f"{lib}_bcpp", dlib, lib
         else:
-            try_names = (lib + "_bcpp", lib)
+            try_names = f"{lib}_bcpp", lib
 
         for dir in dirs:
             for name in try_names:
@@ -349,9 +333,7 @@ def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
             # use normcase to make sure '.rc' is really '.rc' and not '.RC'
             (base, ext) = os.path.splitext(os.path.normcase(src_name))
             if ext not in (self.src_extensions + ['.rc', '.res']):
-                raise UnknownFileError(
-                    "unknown file type '{}' (from '{}')".format(ext, src_name)
-                )
+                raise UnknownFileError(f"unknown file type '{ext}' (from '{src_name}')")
             if strip_dir:
                 base = os.path.basename(base)
             if ext == '.res':
@@ -359,7 +341,7 @@ def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
                 obj_names.append(os.path.join(output_dir, base + ext))
             elif ext == '.rc':
                 # these need to be compiled to .res-files
-                obj_names.append(os.path.join(output_dir, base + '.res'))
+                obj_names.append(os.path.join(output_dir, f'{base}.res'))
             else:
                 obj_names.append(os.path.join(output_dir, base + self.obj_extension))
         return obj_names
@@ -379,7 +361,7 @@ def preprocess(
         pp_opts = gen_preprocess_options(macros, include_dirs)
         pp_args = ['cpp32.exe'] + pp_opts
         if output_file is not None:
-            pp_args.append('-o' + output_file)
+            pp_args.append(f'-o{output_file}')
         if extra_preargs:
             pp_args[:0] = extra_preargs
         if extra_postargs:
diff --git a/setuptools/_distutils/ccompiler.py b/setuptools/_distutils/ccompiler.py
index c1c7d5476e..cfcf9585a6 100644
--- a/setuptools/_distutils/ccompiler.py
+++ b/setuptools/_distutils/ccompiler.py
@@ -168,8 +168,7 @@ class (via the 'executables' class attribute), but most will have:
         for key in kwargs:
             if key not in self.executables:
                 raise ValueError(
-                    "unknown executable '%s' for class %s"
-                    % (key, self.__class__.__name__)
+                    f"unknown executable '{key}' for class {self.__class__.__name__}"
                 )
             self.set_executable(key, kwargs[key])
 
@@ -180,12 +179,7 @@ def set_executable(self, key, value):
             setattr(self, key, value)
 
     def _find_macro(self, name):
-        i = 0
-        for defn in self.macros:
-            if defn[0] == name:
-                return i
-            i += 1
-        return None
+        return next((i for i, defn in enumerate(self.macros) if defn[0] == name), None)
 
     def _check_macro_definitions(self, definitions):
         """Ensures that every element of 'definitions' is a valid macro
@@ -195,16 +189,12 @@ def _check_macro_definitions(self, definitions):
         for defn in definitions:
             if not (
                 isinstance(defn, tuple)
-                and (
-                    len(defn) in (1, 2)
-                    and (isinstance(defn[1], str) or defn[1] is None)
-                )
+                and len(defn) in {1, 2}
+                and (isinstance(defn[1], str) or defn[1] is None)
                 and isinstance(defn[0], str)
             ):
                 raise TypeError(
-                    ("invalid macro definition '%s': " % defn)
-                    + "must be tuple (string,), (string, string), or "
-                    + "(string, None)"
+                    f"invalid macro definition '{defn}': must be tuple (string,), (string, string), or (string, None)"
                 )
 
     # -- Bookkeeping methods -------------------------------------------
@@ -477,11 +467,11 @@ def _need_link(self, objects, output_file):
         if self.force:
             return True
         else:
-            if self.dry_run:
-                newer = newer_group(objects, output_file, missing='newer')
-            else:
-                newer = newer_group(objects, output_file)
-            return newer
+            return (
+                newer_group(objects, output_file, missing='newer')
+                if self.dry_run
+                else newer_group(objects, output_file)
+            )
 
     def detect_language(self, sources):
         """Detect the language of a given file, or list of files. Uses
@@ -957,10 +947,10 @@ def find_library_file(self, dirs, lib, debug=0):
     def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
         if output_dir is None:
             output_dir = ''
-        return list(
+        return [
             self._make_out_path(output_dir, strip_dir, src_name)
             for src_name in source_filenames
-        )
+        ]
 
     @property
     def out_extensions(self):
@@ -972,9 +962,7 @@ def _make_out_path(self, output_dir, strip_dir, src_name):
         try:
             new_ext = self.out_extensions[ext]
         except LookupError:
-            raise UnknownFileError(
-                "unknown file type '{}' (from '{}')".format(ext, src_name)
-            )
+            raise UnknownFileError(f"unknown file type '{ext}' (from '{src_name}')")
         if strip_dir:
             base = os.path.basename(base)
         return os.path.join(output_dir, base + new_ext)
@@ -1010,8 +998,8 @@ def library_filename(
         expected = '"static", "shared", "dylib", "xcode_stub"'
         if lib_type not in eval(expected):
             raise ValueError(f"'lib_type' must be {expected}")
-        fmt = getattr(self, lib_type + "_lib_format")
-        ext = getattr(self, lib_type + "_lib_extension")
+        fmt = getattr(self, f"{lib_type}_lib_format")
+        ext = getattr(self, f"{lib_type}_lib_extension")
 
         dir, base = os.path.split(libname)
         filename = fmt % (base, ext)
@@ -1076,14 +1064,17 @@ def get_default_compiler(osname=None, platform=None):
         osname = os.name
     if platform is None:
         platform = sys.platform
-    for pattern, compiler in _default_compilers:
-        if (
-            re.match(pattern, platform) is not None
-            or re.match(pattern, osname) is not None
-        ):
-            return compiler
-    # Default to Unix compiler
-    return 'unix'
+    return next(
+        (
+            compiler
+            for pattern, compiler in _default_compilers
+            if (
+                re.match(pattern, platform) is not None
+                or re.match(pattern, osname) is not None
+            )
+        ),
+        'unix',
+    )
 
 
 # Map compiler types to (module_name, class_name) pairs -- ie. where to
@@ -1115,9 +1106,10 @@ def show_compilers():
     # commands that use it.
     from distutils.fancy_getopt import FancyGetopt
 
-    compilers = []
-    for compiler in compiler_class.keys():
-        compilers.append(("compiler=" + compiler, None, compiler_class[compiler][2]))
+    compilers = [
+        (f"compiler={compiler}", None, compiler_class[compiler][2])
+        for compiler in compiler_class.keys()
+    ]
     compilers.sort()
     pretty_printer = FancyGetopt(compilers)
     pretty_printer.print_help("List of available compilers:")
@@ -1143,19 +1135,19 @@ def new_compiler(plat=None, compiler=None, verbose=0, dry_run=0, force=0):
 
         (module_name, class_name, long_description) = compiler_class[compiler]
     except KeyError:
-        msg = "don't know how to compile C/C++ code on platform '%s'" % plat
+        msg = f"don't know how to compile C/C++ code on platform '{plat}'"
         if compiler is not None:
-            msg = msg + " with '%s' compiler" % compiler
+            msg = f"{msg} with '{compiler}' compiler"
         raise DistutilsPlatformError(msg)
 
     try:
-        module_name = "distutils." + module_name
+        module_name = f"distutils.{module_name}"
         __import__(module_name)
         module = sys.modules[module_name]
         klass = vars(module)[class_name]
     except ImportError:
         raise DistutilsModuleError(
-            "can't compile C/C++ code: unable to load module '%s'" % module_name
+            f"can't compile C/C++ code: unable to load module '{module_name}'"
         )
     except KeyError:
         raise DistutilsModuleError(
@@ -1192,25 +1184,24 @@ def gen_preprocess_options(macros, include_dirs):
     # and therefore common to all CCompiler classes.
     pp_opts = []
     for macro in macros:
-        if not (isinstance(macro, tuple) and 1 <= len(macro) <= 2):
+        if not isinstance(macro, tuple) or not 1 <= len(macro) <= 2:
             raise TypeError(
                 "bad macro definition '%s': "
                 "each element of 'macros' list must be a 1- or 2-tuple" % macro
             )
 
         if len(macro) == 1:  # undefine this macro
-            pp_opts.append("-U%s" % macro[0])
+            pp_opts.append(f"-U{macro[0]}")
         elif len(macro) == 2:
             if macro[1] is None:  # define with no explicit value
-                pp_opts.append("-D%s" % macro[0])
+                pp_opts.append(f"-D{macro[0]}")
             else:
                 # XXX *don't* need to be clever about quoting the
                 # macro value here, because we're going to avoid the
                 # shell at all costs when we spawn the command!
                 pp_opts.append("-D%s=%s" % macro)
 
-    for dir in include_dirs:
-        pp_opts.append("-I%s" % dir)
+    pp_opts.extend(f"-I{dir}" for dir in include_dirs)
     return pp_opts
 
 
@@ -1221,11 +1212,7 @@ def gen_lib_options(compiler, library_dirs, runtime_library_dirs, libraries):
     directories.  Returns a list of command-line options suitable for use
     with some compiler (depending on the two format strings passed in).
     """
-    lib_opts = []
-
-    for dir in library_dirs:
-        lib_opts.append(compiler.library_dir_option(dir))
-
+    lib_opts = [compiler.library_dir_option(dir) for dir in library_dirs]
     for dir in runtime_library_dirs:
         opt = compiler.runtime_library_dir_option(dir)
         if isinstance(opt, list):
@@ -1242,13 +1229,10 @@ def gen_lib_options(compiler, library_dirs, runtime_library_dirs, libraries):
     for lib in libraries:
         (lib_dir, lib_name) = os.path.split(lib)
         if lib_dir:
-            lib_file = compiler.find_library_file([lib_dir], lib_name)
-            if lib_file:
+            if lib_file := compiler.find_library_file([lib_dir], lib_name):
                 lib_opts.append(lib_file)
             else:
-                compiler.warn(
-                    "no library file corresponding to " "'%s' found (skipping)" % lib
-                )
+                compiler.warn(f"no library file corresponding to '{lib}' found (skipping)")
         else:
             lib_opts.append(compiler.library_option(lib))
     return lib_opts
diff --git a/setuptools/_distutils/cmd.py b/setuptools/_distutils/cmd.py
index 8fdcbc0ea2..85d1edad37 100644
--- a/setuptools/_distutils/cmd.py
+++ b/setuptools/_distutils/cmd.py
@@ -97,14 +97,10 @@ def __init__(self, dist):
 
     # XXX A more explicit way to customize dry_run would be better.
     def __getattr__(self, attr):
-        if attr == 'dry_run':
-            myval = getattr(self, "_" + attr)
-            if myval is None:
-                return getattr(self.distribution, attr)
-            else:
-                return myval
-        else:
+        if attr != 'dry_run':
             raise AttributeError(attr)
+        myval = getattr(self, f"_{attr}")
+        return getattr(self.distribution, attr) if myval is None else myval
 
     def ensure_finalized(self):
         if not self.finalized:
@@ -135,7 +131,7 @@ def initialize_options(self):
         This method must be implemented by all command classes.
         """
         raise RuntimeError(
-            "abstract method -- subclass %s must override" % self.__class__
+            f"abstract method -- subclass {self.__class__} must override"
         )
 
     def finalize_options(self):
@@ -150,22 +146,22 @@ def finalize_options(self):
         This method must be implemented by all command classes.
         """
         raise RuntimeError(
-            "abstract method -- subclass %s must override" % self.__class__
+            f"abstract method -- subclass {self.__class__} must override"
         )
 
     def dump_options(self, header=None, indent=""):
         from distutils.fancy_getopt import longopt_xlate
 
         if header is None:
-            header = "command options for '%s':" % self.get_command_name()
+            header = f"command options for '{self.get_command_name()}':"
         self.announce(indent + header, level=logging.INFO)
-        indent = indent + "  "
+        indent = f"{indent}  "
         for option, _, _ in self.user_options:
             option = option.translate(longopt_xlate)
             if option[-1] == "=":
                 option = option[:-1]
             value = getattr(self, option)
-            self.announce(indent + "{} = {}".format(option, value), level=logging.INFO)
+            self.announce(f"{indent}{option} = {value}", level=logging.INFO)
 
     def run(self):
         """A command's raison d'etre: carry out the action it exists to
@@ -178,7 +174,7 @@ def run(self):
         This method must be implemented by all command classes.
         """
         raise RuntimeError(
-            "abstract method -- subclass %s must override" % self.__class__
+            f"abstract method -- subclass {self.__class__} must override"
         )
 
     def announce(self, msg, level=logging.DEBUG):
@@ -213,9 +209,7 @@ def _ensure_stringlike(self, option, what, default=None):
             setattr(self, option, default)
             return default
         elif not isinstance(val, str):
-            raise DistutilsOptionError(
-                "'{}' must be a {} (got `{}`)".format(option, what, val)
-            )
+            raise DistutilsOptionError(f"'{option}' must be a {what} (got `{val}`)")
         return val
 
     def ensure_string(self, option, default=None):
@@ -236,10 +230,7 @@ def ensure_string_list(self, option):
         elif isinstance(val, str):
             setattr(self, option, re.split(r',\s*|\s+', val))
         else:
-            if isinstance(val, list):
-                ok = all(isinstance(v, str) for v in val)
-            else:
-                ok = False
+            ok = all(isinstance(v, str) for v in val) if isinstance(val, list) else False
             if not ok:
                 raise DistutilsOptionError(
                     "'{}' must be a list of strings (got {!r})".format(option, val)
@@ -249,7 +240,7 @@ def _ensure_tested_string(self, option, tester, what, error_fmt, default=None):
         val = self._ensure_stringlike(option, what, default)
         if val is not None and not tester(val):
             raise DistutilsOptionError(
-                ("error in '%s' option: " + error_fmt) % (option, val)
+                f"error in '%s' option: {error_fmt}" % (option, val)
             )
 
     def ensure_filename(self, option):
@@ -324,11 +315,11 @@ def get_sub_commands(self):
         a method that we call to determine if the subcommand needs to be
         run for the current distribution.  Return a list of command names.
         """
-        commands = []
-        for cmd_name, method in self.sub_commands:
-            if method is None or method(self):
-                commands.append(cmd_name)
-        return commands
+        return [
+            cmd_name
+            for cmd_name, method in self.sub_commands
+            if method is None or method(self)
+        ]
 
     # -- External world manipulation -----------------------------------
 
@@ -414,7 +405,7 @@ def make_file(
         timestamp checks.
         """
         if skip_msg is None:
-            skip_msg = "skipping %s (inputs unchanged)" % outfile
+            skip_msg = f"skipping {outfile} (inputs unchanged)"
 
         # Allow 'infiles' to be a single string
         if isinstance(infiles, str):
@@ -423,7 +414,7 @@ def make_file(
             raise TypeError("'infiles' must be a string, or a list or tuple of strings")
 
         if exec_msg is None:
-            exec_msg = "generating {} from {}".format(outfile, ', '.join(infiles))
+            exec_msg = f"generating {outfile} from {', '.join(infiles)}"
 
         # If 'outfile' must be regenerated (either because it doesn't
         # exist, is out-of-date, or the 'force' flag is true) then
diff --git a/setuptools/_distutils/command/bdist.py b/setuptools/_distutils/command/bdist.py
index 6329039ce4..a65345d3c8 100644
--- a/setuptools/_distutils/command/bdist.py
+++ b/setuptools/_distutils/command/bdist.py
@@ -15,9 +15,10 @@ def show_formats():
     """Print list of available formats (arguments to "--format" option)."""
     from ..fancy_getopt import FancyGetopt
 
-    formats = []
-    for format in bdist.format_commands:
-        formats.append(("formats=" + format, None, bdist.format_commands[format][1]))
+    formats = [
+        (f"formats={format}", None, bdist.format_commands[format][1])
+        for format in bdist.format_commands
+    ]
     pretty_printer = FancyGetopt(formats)
     pretty_printer.print_help("List of available distribution formats:")
 
@@ -101,7 +102,6 @@ def initialize_options(self):
         self.owner = None
 
     def finalize_options(self):
-        # have to finalize 'plat_name' before 'bdist_base'
         if self.plat_name is None:
             if self.skip_build:
                 self.plat_name = get_platform()
@@ -113,7 +113,7 @@ def finalize_options(self):
         # "build/bdist.<plat>/dumb", "build/bdist.<plat>/rpm", etc.)
         if self.bdist_base is None:
             build_base = self.get_finalized_command('build').build_base
-            self.bdist_base = os.path.join(build_base, 'bdist.' + self.plat_name)
+            self.bdist_base = os.path.join(build_base, f'bdist.{self.plat_name}')
 
         self.ensure_string_list('formats')
         if self.formats is None:
@@ -135,7 +135,7 @@ def run(self):
             try:
                 commands.append(self.format_commands[format][0])
             except KeyError:
-                raise DistutilsOptionError("invalid format '%s'" % format)
+                raise DistutilsOptionError(f"invalid format '{format}'")
 
         # Reinitialize and run each command.
         for i in range(len(self.formats)):
diff --git a/setuptools/_distutils/command/bdist_dumb.py b/setuptools/_distutils/command/bdist_dumb.py
index 01dd79079b..f4a68a1d9b 100644
--- a/setuptools/_distutils/command/bdist_dumb.py
+++ b/setuptools/_distutils/command/bdist_dumb.py
@@ -95,35 +95,30 @@ def run(self):
             self.run_command('build')
 
         install = self.reinitialize_command('install', reinit_subcommands=1)
-        install.root = self.bdist_dir
         install.skip_build = self.skip_build
         install.warn_dir = 0
 
+        install.root = self.bdist_dir
         log.info("installing to %s", self.bdist_dir)
         self.run_command('install')
 
         # And make an archive relative to the root of the
         # pseudo-installation tree.
-        archive_basename = "{}.{}".format(
-            self.distribution.get_fullname(), self.plat_name
-        )
+        archive_basename = f"{self.distribution.get_fullname()}.{self.plat_name}"
 
         pseudoinstall_root = os.path.join(self.dist_dir, archive_basename)
         if not self.relative:
             archive_root = self.bdist_dir
-        else:
-            if self.distribution.has_ext_modules() and (
+        elif self.distribution.has_ext_modules() and (
                 install.install_base != install.install_platbase
             ):
-                raise DistutilsPlatformError(
-                    "can't make a dumb built distribution where "
-                    "base and platbase are different (%s, %s)"
-                    % (repr(install.install_base), repr(install.install_platbase))
-                )
-            else:
-                archive_root = os.path.join(
-                    self.bdist_dir, ensure_relative(install.install_base)
-                )
+            raise DistutilsPlatformError(
+                f"can't make a dumb built distribution where base and platbase are different ({repr(install.install_base)}, {repr(install.install_platbase)})"
+            )
+        else:
+            archive_root = os.path.join(
+                self.bdist_dir, ensure_relative(install.install_base)
+            )
 
         # Make the archive
         filename = self.make_archive(
diff --git a/setuptools/_distutils/command/bdist_rpm.py b/setuptools/_distutils/command/bdist_rpm.py
index 3ed608b479..ad7d5a1f57 100644
--- a/setuptools/_distutils/command/bdist_rpm.py
+++ b/setuptools/_distutils/command/bdist_rpm.py
@@ -203,10 +203,7 @@ def finalize_options(self):
             self.rpm_base = os.path.join(self.bdist_base, "rpm")
 
         if self.python is None:
-            if self.fix_python:
-                self.python = sys.executable
-            else:
-                self.python = "python3"
+            self.python = sys.executable if self.fix_python else "python3"
         elif self.fix_python:
             raise DistutilsOptionError(
                 "--python and --fix-python are mutually exclusive options"
@@ -214,7 +211,7 @@ def finalize_options(self):
 
         if os.name != 'posix':
             raise DistutilsPlatformError(
-                "don't know how to create RPM " "distributions on platform %s" % os.name
+                f"don't know how to create RPM distributions on platform {os.name}"
             )
         if self.binary_only and self.source_only:
             raise DistutilsOptionError(
@@ -232,8 +229,7 @@ def finalize_package_data(self):
         self.ensure_string('group', "Development/Libraries")
         self.ensure_string(
             'vendor',
-            "%s <%s>"
-            % (self.distribution.get_contact(), self.distribution.get_contact_email()),
+            f"{self.distribution.get_contact()} <{self.distribution.get_contact_email()}>",
         )
         self.ensure_string('packager')
         self.ensure_string_list('doc_files')
@@ -296,9 +292,11 @@ def run(self):  # noqa: C901
 
         # Spec file goes into 'dist_dir' if '--spec-only specified',
         # build/rpm.<plat> otherwise.
-        spec_path = os.path.join(spec_dir, "%s.spec" % self.distribution.get_name())
+        spec_path = os.path.join(spec_dir, f"{self.distribution.get_name()}.spec")
         self.execute(
-            write_file, (spec_path, self._make_spec_file()), "writing '%s'" % spec_path
+            write_file,
+            (spec_path, self._make_spec_file()),
+            f"writing '{spec_path}'",
         )
 
         if self.spec_only:  # stop if requested
@@ -308,10 +306,7 @@ def run(self):  # noqa: C901
         # optional icon.
         saved_dist_files = self.distribution.dist_files[:]
         sdist = self.reinitialize_command('sdist')
-        if self.use_bzip2:
-            sdist.formats = ['bztar']
-        else:
-            sdist.formats = ['gztar']
+        sdist.formats = ['bztar'] if self.use_bzip2 else ['gztar']
         self.run_command('sdist')
         self.distribution.dist_files = saved_dist_files
 
@@ -323,7 +318,7 @@ def run(self):  # noqa: C901
             if os.path.exists(self.icon):
                 self.copy_file(self.icon, source_dir)
             else:
-                raise DistutilsFileError("icon file '%s' does not exist" % self.icon)
+                raise DistutilsFileError(f"icon file '{self.icon}' does not exist")
 
         # build package
         log.info("building RPMs")
@@ -335,9 +330,9 @@ def run(self):  # noqa: C901
             rpm_cmd.append('-bb')
         else:
             rpm_cmd.append('-ba')
-        rpm_cmd.extend(['--define', '__python %s' % self.python])
+        rpm_cmd.extend(['--define', f'__python {self.python}'])
         if self.rpm3_mode:
-            rpm_cmd.extend(['--define', '_topdir %s' % os.path.abspath(self.rpm_base)])
+            rpm_cmd.extend(['--define', f'_topdir {os.path.abspath(self.rpm_base)}'])
         if not self.keep_temp:
             rpm_cmd.append('--clean')
 
@@ -350,13 +345,9 @@ def run(self):  # noqa: C901
         # Note that some of these may not be really built (if the file
         # list is empty)
         nvr_string = "%{name}-%{version}-%{release}"
-        src_rpm = nvr_string + ".src.rpm"
+        src_rpm = f"{nvr_string}.src.rpm"
         non_src_rpm = "%{arch}/" + nvr_string + ".%{arch}.rpm"
-        q_cmd = r"rpm -q --qf '{} {}\n' --specfile '{}'".format(
-            src_rpm,
-            non_src_rpm,
-            spec_path,
-        )
+        q_cmd = f"rpm -q --qf '{src_rpm} {non_src_rpm}\n' --specfile '{spec_path}'"
 
         out = os.popen(q_cmd)
         try:
@@ -373,9 +364,8 @@ def run(self):  # noqa: C901
                 if source_rpm is None:
                     source_rpm = ell[0]
 
-            status = out.close()
-            if status:
-                raise DistutilsExecError("Failed to execute: %s" % repr(q_cmd))
+            if status := out.close():
+                raise DistutilsExecError(f"Failed to execute: {repr(q_cmd)}")
 
         finally:
             out.close()
diff --git a/setuptools/_distutils/command/build.py b/setuptools/_distutils/command/build.py
index cc9b367ef9..e8003c4b54 100644
--- a/setuptools/_distutils/command/build.py
+++ b/setuptools/_distutils/command/build.py
@@ -68,17 +68,13 @@ def initialize_options(self):
     def finalize_options(self):  # noqa: C901
         if self.plat_name is None:
             self.plat_name = get_platform()
-        else:
-            # plat-name only supported for windows (other platforms are
-            # supported via ./configure flags, if at all).  Avoid misleading
-            # other platforms.
-            if os.name != 'nt':
-                raise DistutilsOptionError(
-                    "--plat-name only supported on Windows (try "
-                    "using './configure --help' on your platform)"
-                )
-
-        plat_specifier = ".{}-{}".format(self.plat_name, sys.implementation.cache_tag)
+        elif os.name != 'nt':
+            raise DistutilsOptionError(
+                "--plat-name only supported on Windows (try "
+                "using './configure --help' on your platform)"
+            )
+
+        plat_specifier = f".{self.plat_name}-{sys.implementation.cache_tag}"
 
         # Make it so Python 2.x and Python 2.x with --with-pydebug don't
         # share the same build directories. Doing so confuses the build
@@ -92,11 +88,8 @@ def finalize_options(self):  # noqa: C901
         if self.build_purelib is None:
             self.build_purelib = os.path.join(self.build_base, 'lib')
         if self.build_platlib is None:
-            self.build_platlib = os.path.join(self.build_base, 'lib' + plat_specifier)
+            self.build_platlib = os.path.join(self.build_base, f'lib{plat_specifier}')
 
-        # 'build_lib' is the actual directory that we will use for this
-        # particular module distribution -- if user didn't supply it, pick
-        # one of 'build_purelib' or 'build_platlib'.
         if self.build_lib is None:
             if self.distribution.has_ext_modules():
                 self.build_lib = self.build_platlib
@@ -106,7 +99,7 @@ def finalize_options(self):  # noqa: C901
         # 'build_temp' -- temporary directory for compiler turds,
         # "build/temp.<plat>"
         if self.build_temp is None:
-            self.build_temp = os.path.join(self.build_base, 'temp' + plat_specifier)
+            self.build_temp = os.path.join(self.build_base, f'temp{plat_specifier}')
         if self.build_scripts is None:
             self.build_scripts = os.path.join(
                 self.build_base, 'scripts-%d.%d' % sys.version_info[:2]
diff --git a/setuptools/_distutils/command/build_clib.py b/setuptools/_distutils/command/build_clib.py
index b3f679b67d..ae23b1d9cc 100644
--- a/setuptools/_distutils/command/build_clib.py
+++ b/setuptools/_distutils/command/build_clib.py
@@ -153,10 +153,7 @@ def get_library_names(self):
         if not self.libraries:
             return None
 
-        lib_names = []
-        for lib_name, build_info in self.libraries:
-            lib_names.append(lib_name)
-        return lib_names
+        return [lib_name for lib_name, build_info in self.libraries]
 
     def get_source_files(self):
         self.check_library_list(self.libraries)
diff --git a/setuptools/_distutils/command/build_ext.py b/setuptools/_distutils/command/build_ext.py
index b48f462626..53451da356 100644
--- a/setuptools/_distutils/command/build_ext.py
+++ b/setuptools/_distutils/command/build_ext.py
@@ -207,30 +207,27 @@ def finalize_options(self):  # noqa: C901
             self.library_dirs.append(sys.base_exec_prefix)
 
             # Use the .lib files for the correct architecture
-            if self.plat_name == 'win32':
-                suffix = 'win32'
-            else:
-                # win-amd64
-                suffix = self.plat_name[4:]
+            suffix = 'win32' if self.plat_name == 'win32' else self.plat_name[4:]
             new_lib = os.path.join(sys.exec_prefix, 'PCbuild')
             if suffix:
                 new_lib = os.path.join(new_lib, suffix)
             self.library_dirs.append(new_lib)
 
-        # For extensions under Cygwin, Python's library directory must be
-        # appended to library_dirs
         if sys.platform[:6] == 'cygwin':
-            if not sysconfig.python_build:
+            if sysconfig.python_build:
+                # building python standard extensions
+                self.library_dirs.append('.')
+
+            else:
                 # building third party extensions
                 self.library_dirs.append(
                     os.path.join(
-                        sys.prefix, "lib", "python" + get_python_version(), "config"
+                        sys.prefix,
+                        "lib",
+                        f"python{get_python_version()}",
+                        "config",
                     )
                 )
-            else:
-                # building python standard extensions
-                self.library_dirs.append('.')
-
         # For building extensions with a shared Python library,
         # Python's library directory must be appended to library_dirs
         # See Issues: #1600860, #4366
@@ -257,11 +254,7 @@ def finalize_options(self):  # noqa: C901
         if self.undef:
             self.undef = self.undef.split(',')
 
-        if self.swig_opts is None:
-            self.swig_opts = []
-        else:
-            self.swig_opts = self.swig_opts.split(' ')
-
+        self.swig_opts = [] if self.swig_opts is None else self.swig_opts.split(' ')
         # Finally add the user include and library directories if requested
         if self.user:
             user_include = os.path.join(USER_BASE, "include")
@@ -344,7 +337,7 @@ def run(self):  # noqa: C901
         # Now actually compile and link everything.
         self.build_extensions()
 
-    def check_extensions_list(self, extensions):  # noqa: C901
+    def check_extensions_list(self, extensions):    # noqa: C901
         """Ensure that the list of extensions (presumably provided as a
         command option 'extensions') is valid, i.e. it is a list of
         Extension objects.  We also support the old-style list of 2-tuples,
@@ -416,14 +409,11 @@ def check_extensions_list(self, extensions):  # noqa: C901
                     "'def_file' element of build info dict " "no longer supported"
                 )
 
-            # Non-trivial stuff: 'macros' split into 'define_macros'
-            # and 'undef_macros'.
-            macros = build_info.get('macros')
-            if macros:
+            if macros := build_info.get('macros'):
                 ext.define_macros = []
                 ext.undef_macros = []
                 for macro in macros:
-                    if not (isinstance(macro, tuple) and len(macro) in (1, 2)):
+                    if not (isinstance(macro, tuple) and len(macro) in {1, 2}):
                         raise DistutilsSetupError(
                             "'macros' element of build info dict "
                             "must be 1- or 2-tuple"
@@ -450,13 +440,7 @@ def get_outputs(self):
         # can probably assume that it *isn't*!).
         self.check_extensions_list(self.extensions)
 
-        # And build the list of output (built) filenames.  Note that this
-        # ignores the 'inplace' flag, and assumes everything goes in the
-        # "build" tree.
-        outputs = []
-        for ext in self.extensions:
-            outputs.append(self.get_ext_fullpath(ext.name))
-        return outputs
+        return [self.get_ext_fullpath(ext.name) for ext in self.extensions]
 
     def build_extensions(self):
         # First, sanity-check the 'extensions' list
@@ -499,7 +483,7 @@ def _filter_build_errors(self, ext):
         except (CCompilerError, DistutilsError, CompileError) as e:
             if not ext.optional:
                 raise
-            self.warn('building extension "{}" failed: {}'.format(ext.name, e))
+            self.warn(f'building extension "{ext.name}" failed: {e}')
 
     def build_extension(self, ext):
         sources = ext.sources
@@ -612,7 +596,7 @@ def swig_sources(self, sources, extension):
         for source in sources:
             (base, ext) = os.path.splitext(source)
             if ext == ".i":  # SWIG interface file
-                new_sources.append(base + '_wrap' + target_ext)
+                new_sources.append(f'{base}_wrap{target_ext}')
                 swig_sources.append(source)
                 swig_targets[source] = new_sources[-1]
             else:
@@ -629,9 +613,7 @@ def swig_sources(self, sources, extension):
 
         # Do not override commandline arguments
         if not self.swig_opts:
-            for o in extension.swig_opts:
-                swig_cmd.append(o)
-
+            swig_cmd.extend(iter(extension.swig_opts))
         for source in swig_sources:
             target = swig_targets[source]
             log.info("swigging %s to %s", source, target)
@@ -683,7 +665,7 @@ def get_ext_fullpath(self, ext_name):
 
         # the inplace option requires to find the package directory
         # using the build_py command for that
-        package = '.'.join(modpath[0:-1])
+        package = '.'.join(modpath[:-1])
         build_py = self.get_finalized_command('build_py')
         package_dir = os.path.abspath(build_py.get_package_dir(package))
 
@@ -695,10 +677,7 @@ def get_ext_fullname(self, ext_name):
         """Returns the fullname of a given extension name.
 
         Adds the `package.` prefix"""
-        if self.package is None:
-            return ext_name
-        else:
-            return self.package + '.' + ext_name
+        return ext_name if self.package is None else f'{self.package}.{ext_name}'
 
     def get_ext_filename(self, ext_name):
         r"""Convert the name of an extension (eg. "foo.bar") into the name
@@ -725,14 +704,14 @@ def get_export_symbols(self, ext):
         except UnicodeEncodeError:
             suffix = 'U_' + name.encode('punycode').replace(b'-', b'_').decode('ascii')
         else:
-            suffix = "_" + name
+            suffix = f"_{name}"
 
-        initfunc_name = "PyInit" + suffix
+        initfunc_name = f"PyInit{suffix}"
         if initfunc_name not in ext.export_symbols:
             ext.export_symbols.append(initfunc_name)
         return ext.export_symbols
 
-    def get_libraries(self, ext):  # noqa: C901
+    def get_libraries(self, ext):    # noqa: C901
         """Return the list of libraries to link against when building a
         shared extension.  On most platforms, this is just 'ext.libraries';
         on Windows, we add the Python library (eg. python20.dll).
@@ -748,7 +727,7 @@ def get_libraries(self, ext):  # noqa: C901
             if not isinstance(self.compiler, MSVCCompiler):
                 template = "python%d%d"
                 if self.debug:
-                    template = template + '_d'
+                    template += '_d'
                 pythonlib = template % (
                     sys.hexversion >> 24,
                     (sys.hexversion >> 16) & 0xFF,
@@ -783,6 +762,6 @@ def get_libraries(self, ext):  # noqa: C901
 
             if link_libpython:
                 ldversion = get_config_var('LDVERSION')
-                return ext.libraries + ['python' + ldversion]
+                return ext.libraries + [f'python{ldversion}']
 
         return ext.libraries + py37compat.pythonlib()
diff --git a/setuptools/_distutils/command/build_py.py b/setuptools/_distutils/command/build_py.py
index d9df95922f..f75c2c3f5e 100644
--- a/setuptools/_distutils/command/build_py.py
+++ b/setuptools/_distutils/command/build_py.py
@@ -151,37 +151,30 @@ def get_package_dir(self, package):
         path = package.split('.')
 
         if not self.package_dir:
-            if path:
-                return os.path.join(*path)
+            return os.path.join(*path) if path else ''
+        tail = []
+        while path:
+            try:
+                pdir = self.package_dir['.'.join(path)]
+            except KeyError:
+                tail.insert(0, path[-1])
+                del path[-1]
             else:
-                return ''
+                tail.insert(0, pdir)
+                return os.path.join(*tail)
         else:
-            tail = []
-            while path:
-                try:
-                    pdir = self.package_dir['.'.join(path)]
-                except KeyError:
-                    tail.insert(0, path[-1])
-                    del path[-1]
-                else:
-                    tail.insert(0, pdir)
-                    return os.path.join(*tail)
-            else:
-                # Oops, got all the way through 'path' without finding a
-                # match in package_dir.  If package_dir defines a directory
-                # for the root (nameless) package, then fallback on it;
-                # otherwise, we might as well have not consulted
-                # package_dir at all, as we just use the directory implied
-                # by 'tail' (which should be the same as the original value
-                # of 'path' at this point).
-                pdir = self.package_dir.get('')
-                if pdir is not None:
-                    tail.insert(0, pdir)
-
-                if tail:
-                    return os.path.join(*tail)
-                else:
-                    return ''
+            # Oops, got all the way through 'path' without finding a
+            # match in package_dir.  If package_dir defines a directory
+            # for the root (nameless) package, then fallback on it;
+            # otherwise, we might as well have not consulted
+            # package_dir at all, as we just use the directory implied
+            # by 'tail' (which should be the same as the original value
+            # of 'path' at this point).
+            pdir = self.package_dir.get('')
+            if pdir is not None:
+                tail.insert(0, pdir)
+
+            return os.path.join(*tail) if tail else ''
 
     def check_package(self, package, package_dir):
         # Empty dir name means current directory, which we can probably
@@ -190,9 +183,7 @@ def check_package(self, package, package_dir):
         # circumvent them.
         if package_dir != "":
             if not os.path.exists(package_dir):
-                raise DistutilsFileError(
-                    "package directory '%s' does not exist" % package_dir
-                )
+                raise DistutilsFileError(f"package directory '{package_dir}' does not exist")
             if not os.path.isdir(package_dir):
                 raise DistutilsFileError(
                     "supposed package directory '%s' exists, "
@@ -228,7 +219,7 @@ def find_package_modules(self, package, package_dir):
                 module = os.path.splitext(os.path.basename(f))[0]
                 modules.append((package, module, f))
             else:
-                self.debug_print("excluding %s" % setup_script)
+                self.debug_print(f"excluding {setup_script}")
         return modules
 
     def find_modules(self):
@@ -257,7 +248,7 @@ def find_modules(self):
         #   - don't check for __init__.py in directory for empty package
         for module in self.py_modules:
             path = module.split('.')
-            package = '.'.join(path[0:-1])
+            package = '.'.join(path[:-1])
             module_base = path[-1]
 
             try:
@@ -275,7 +266,7 @@ def find_modules(self):
             # XXX perhaps we should also check for just .pyc files
             # (so greedy closed-source bastards can distribute Python
             # modules too)
-            module_file = os.path.join(package_dir, module_base + ".py")
+            module_file = os.path.join(package_dir, f"{module_base}.py")
             if not self.check_module(module, module_file):
                 continue
 
@@ -303,7 +294,7 @@ def get_source_files(self):
         return [module[-1] for module in self.find_all_modules()]
 
     def get_module_outfile(self, build_dir, package, module):
-        outfile_path = [build_dir] + list(package) + [module + ".py"]
+        outfile_path = [build_dir] + list(package) + [f"{module}.py"]
         return os.path.join(*outfile_path)
 
     def get_outputs(self, include_bytecode=1):
diff --git a/setuptools/_distutils/command/build_scripts.py b/setuptools/_distutils/command/build_scripts.py
index 1a4d67f492..4c98fe9843 100644
--- a/setuptools/_distutils/command/build_scripts.py
+++ b/setuptools/_distutils/command/build_scripts.py
@@ -95,7 +95,7 @@ def _copy_script(self, script, outfiles, updated_files):  # noqa: C901
         else:
             first_line = f.readline()
             if not first_line:
-                self.warn("%s is an empty file (skipping)" % script)
+                self.warn(f"{script} is an empty file (skipping)")
                 return
 
             shebang_match = shebang_pattern.match(first_line)
@@ -109,14 +109,10 @@ def _copy_script(self, script, outfiles, updated_files):  # noqa: C901
                 else:
                     executable = os.path.join(
                         sysconfig.get_config_var("BINDIR"),
-                        "python%s%s"
-                        % (
-                            sysconfig.get_config_var("VERSION"),
-                            sysconfig.get_config_var("EXE"),
-                        ),
+                        f'python{sysconfig.get_config_var("VERSION")}{sysconfig.get_config_var("EXE")}',
                     )
                 post_interp = shebang_match.group(1) or ''
-                shebang = "#!" + executable + post_interp + "\n"
+                shebang = f"#!{executable}{post_interp}" + "\n"
                 self._validate_shebang(shebang, f.encoding)
                 with open(outfile, "w", encoding=f.encoding) as outf:
                     outf.write(shebang)
diff --git a/setuptools/_distutils/command/check.py b/setuptools/_distutils/command/check.py
index 575e49fb4b..0675f23ee8 100644
--- a/setuptools/_distutils/command/check.py
+++ b/setuptools/_distutils/command/check.py
@@ -99,23 +99,19 @@ def check_metadata(self):
         """
         metadata = self.distribution.metadata
 
-        missing = []
-        for attr in 'name', 'version':
-            if not getattr(metadata, attr, None):
-                missing.append(attr)
-
-        if missing:
-            self.warn("missing required meta-data: %s" % ', '.join(missing))
+        if missing := [
+            attr
+            for attr in ('name', 'version')
+            if not getattr(metadata, attr, None)
+        ]:
+            self.warn(f"missing required meta-data: {', '.join(missing)}")
 
     def check_restructuredtext(self):
         """Checks if the long string fields are reST-compliant."""
         data = self.distribution.get_long_description()
         for warning in self._check_rst_data(data):
             line = warning[-1].get('line')
-            if line is None:
-                warning = warning[1]
-            else:
-                warning = '{} (line {})'.format(warning[1], line)
+            warning = warning[1] if line is None else f'{warning[1]} (line {line})'
             self.warn(warning)
 
     def _check_rst_data(self, data):
@@ -144,8 +140,6 @@ def _check_rst_data(self, data):
         try:
             parser.parse(data, document)
         except AttributeError as e:
-            reporter.messages.append(
-                (-1, 'Could not finish the parsing: %s.' % e, '', {})
-            )
+            reporter.messages.append((-1, f'Could not finish the parsing: {e}.', '', {}))
 
         return reporter.messages
diff --git a/setuptools/_distutils/command/config.py b/setuptools/_distutils/command/config.py
index 494d97d16f..7f49162be3 100644
--- a/setuptools/_distutils/command/config.py
+++ b/setuptools/_distutils/command/config.py
@@ -101,7 +101,7 @@ def _check_compiler(self):
                 self.compiler.set_library_dirs(self.library_dirs)
 
     def _gen_temp_sourcefile(self, body, headers, lang):
-        filename = "_configtest" + LANG_EXT[lang]
+        filename = f"_configtest{LANG_EXT[lang]}"
         with open(filename, "w") as file:
             if headers:
                 for header in headers:
@@ -122,7 +122,7 @@ def _preprocess(self, body, headers, include_dirs, lang):
     def _compile(self, body, headers, include_dirs, lang):
         src = self._gen_temp_sourcefile(body, headers, lang)
         if self.dump_source:
-            dump_file(src, "compiling '%s':" % src)
+            dump_file(src, f"compiling '{src}':")
         (obj,) = self.compiler.object_filenames([src])
         self.temp_files.extend([src, obj])
         self.compiler.compile([src], include_dirs=include_dirs)
@@ -314,12 +314,12 @@ def check_func(
         self._check_compiler()
         body = []
         if decl:
-            body.append("int %s ();" % func)
+            body.append(f"int {func} ();")
         body.append("int main () {")
         if call:
-            body.append("  %s();" % func)
+            body.append(f"  {func}();")
         else:
-            body.append("  %s;" % func)
+            body.append(f"  {func};")
         body.append("}")
         body = "\n".join(body) + "\n"
 
diff --git a/setuptools/_distutils/command/install.py b/setuptools/_distutils/command/install.py
index a7ac4e6077..61416c4cda 100644
--- a/setuptools/_distutils/command/install.py
+++ b/setuptools/_distutils/command/install.py
@@ -121,10 +121,7 @@ def _load_schemes():
 
 
 def _get_implementation():
-    if hasattr(sys, 'pypy_version_info'):
-        return 'PyPy'
-    else:
-        return 'Python'
+    return 'PyPy' if hasattr(sys, 'pypy_version_info') else 'Python'
 
 
 def _select_scheme(ob, name):
@@ -516,11 +513,11 @@ def dump_dirs(self, msg):
             return
         from ..fancy_getopt import longopt_xlate
 
-        log.debug(msg + ":")
+        log.debug(f"{msg}:")
         for opt in self.user_options:
             opt_name = opt[0]
             if opt_name[-1] == "=":
-                opt_name = opt_name[0:-1]
+                opt_name = opt_name[:-1]
             if opt_name in self.negative_opt:
                 opt_name = self.negative_opt[opt_name]
                 opt_name = opt_name.translate(longopt_xlate)
@@ -571,9 +568,8 @@ def finalize_unix(self):
                 self.prefix = os.path.normpath(sys.prefix) + _prefix_addition
                 self.exec_prefix = os.path.normpath(sys.exec_prefix) + _prefix_addition
 
-            else:
-                if self.exec_prefix is None:
-                    self.exec_prefix = self.prefix
+            elif self.exec_prefix is None:
+                self.exec_prefix = self.prefix
 
             self.install_base = self.prefix
             self.install_platbase = self.exec_prefix
@@ -585,7 +581,7 @@ def finalize_other(self):
             if self.install_userbase is None:
                 raise DistutilsPlatformError("User base directory is not specified")
             self.install_base = self.install_platbase = self.install_userbase
-            self.select_scheme(os.name + "_user")
+            self.select_scheme(f"{os.name}_user")
         elif self.home is not None:
             self.install_base = self.install_platbase = self.home
             self.select_scheme("posix_home")
@@ -598,7 +594,7 @@ def finalize_other(self):
                 self.select_scheme(os.name)
             except KeyError:
                 raise DistutilsPlatformError(
-                    "I don't know how to install stuff on '%s'" % os.name
+                    f"I don't know how to install stuff on '{os.name}'"
                 )
 
     def select_scheme(self, name):
@@ -608,7 +604,7 @@ def _expand_attrs(self, attrs):
         for attr in attrs:
             val = getattr(self, attr)
             if val is not None:
-                if os.name in ('posix', 'nt'):
+                if os.name in {'posix', 'nt'}:
                     val = os.path.expanduser(val)
                 val = subst_vars(val, self.config_vars)
                 setattr(self, attr, val)
@@ -634,7 +630,7 @@ def expand_dirs(self):
     def convert_paths(self, *names):
         """Call `convert_path` over `names`."""
         for name in names:
-            attr = "install_" + name
+            attr = f"install_{name}"
             setattr(self, attr, convert_path(getattr(self, attr)))
 
     def handle_extra_path(self):
@@ -675,7 +671,7 @@ def handle_extra_path(self):
     def change_roots(self, *names):
         """Change the install directories pointed by name using root."""
         for name in names:
-            attr = "install_" + name
+            attr = f"install_{name}"
             setattr(self, attr, change_root(self.root, getattr(self, attr)))
 
     def create_home_path(self):
@@ -685,7 +681,7 @@ def create_home_path(self):
         home = convert_path(os.path.expanduser("~"))
         for name, path in self.config_vars.items():
             if str(path).startswith(home) and not os.path.isdir(path):
-                self.debug_print("os.makedirs('%s', 0o700)" % path)
+                self.debug_print(f"os.makedirs('{path}', 0o700)")
                 os.makedirs(path, 0o700)
 
     # -- Command execution methods -------------------------------------
@@ -720,7 +716,7 @@ def run(self):
             self.execute(
                 write_file,
                 (self.record, outputs),
-                "writing list of installed files to '%s'" % self.record,
+                f"writing list of installed files to '{self.record}'",
             )
 
         sys_path = map(os.path.normpath, sys.path)
@@ -742,13 +738,11 @@ def run(self):
 
     def create_path_file(self):
         """Creates the .pth file"""
-        filename = os.path.join(self.install_libbase, self.path_file + ".pth")
+        filename = os.path.join(self.install_libbase, f"{self.path_file}.pth")
         if self.install_path_file:
-            self.execute(
-                write_file, (filename, [self.extra_dirs]), "creating %s" % filename
-            )
+            self.execute(write_file, (filename, [self.extra_dirs]), f"creating {filename}")
         else:
-            self.warn("path file '%s' not created" % filename)
+            self.warn(f"path file '{filename}' not created")
 
     # -- Reporting methods ---------------------------------------------
 
@@ -764,7 +758,7 @@ def get_outputs(self):
                     outputs.append(filename)
 
         if self.path_file and self.install_path_file:
-            outputs.append(os.path.join(self.install_libbase, self.path_file + ".pth"))
+            outputs.append(os.path.join(self.install_libbase, f"{self.path_file}.pth"))
 
         return outputs
 
diff --git a/setuptools/_distutils/command/install_egg_info.py b/setuptools/_distutils/command/install_egg_info.py
index f3e8f3447d..89cdc31d45 100644
--- a/setuptools/_distutils/command/install_egg_info.py
+++ b/setuptools/_distutils/command/install_egg_info.py
@@ -47,11 +47,9 @@ def run(self):
         if os.path.isdir(target) and not os.path.islink(target):
             dir_util.remove_tree(target, dry_run=self.dry_run)
         elif os.path.exists(target):
-            self.execute(os.unlink, (self.target,), "Removing " + target)
+            self.execute(os.unlink, (self.target,), f"Removing {target}")
         elif not os.path.isdir(self.install_dir):
-            self.execute(
-                os.makedirs, (self.install_dir,), "Creating " + self.install_dir
-            )
+            self.execute(os.makedirs, (self.install_dir,), f"Creating {self.install_dir}")
         log.info("Writing %s", target)
         if not self.dry_run:
             with open(target, 'w', encoding='UTF-8') as f:
diff --git a/setuptools/_distutils/command/install_lib.py b/setuptools/_distutils/command/install_lib.py
index be4c243321..60e59e4a66 100644
--- a/setuptools/_distutils/command/install_lib.py
+++ b/setuptools/_distutils/command/install_lib.py
@@ -114,9 +114,7 @@ def install(self):
         if os.path.isdir(self.build_dir):
             outfiles = self.copy_tree(self.build_dir, self.install_dir)
         else:
-            self.warn(
-                "'%s' does not exist -- no Python modules to install" % self.build_dir
-            )
+            self.warn(f"'{self.build_dir}' does not exist -- no Python modules to install")
             return
         return outfiles
 
@@ -162,11 +160,7 @@ def _mutate_outputs(self, has_any, build_cmd, cmd_option, output_dir):
         build_dir = getattr(build_cmd, cmd_option)
 
         prefix_len = len(build_dir) + len(os.sep)
-        outputs = []
-        for file in build_files:
-            outputs.append(os.path.join(output_dir, file[prefix_len:]))
-
-        return outputs
+        return [os.path.join(output_dir, file[prefix_len:]) for file in build_files]
 
     def _bytecode_filenames(self, py_filenames):
         bytecode_files = []
diff --git a/setuptools/_distutils/command/py37compat.py b/setuptools/_distutils/command/py37compat.py
index aa0c0a7fcd..4d68a4fc3b 100644
--- a/setuptools/_distutils/command/py37compat.py
+++ b/setuptools/_distutils/command/py37compat.py
@@ -11,11 +11,7 @@ def _pythonlib_compat():
     if not sysconfig.get_config_var('Py_ENABLED_SHARED'):
         return
 
-    yield 'python{}.{}{}'.format(
-        sys.hexversion >> 24,
-        (sys.hexversion >> 16) & 0xFF,
-        sysconfig.get_config_var('ABIFLAGS'),
-    )
+    yield f"python{sys.hexversion >> 24}.{sys.hexversion >> 16 & 255}{sysconfig.get_config_var('ABIFLAGS')}"
 
 
 def compose(f1, f2):
diff --git a/setuptools/_distutils/command/register.py b/setuptools/_distutils/command/register.py
index c19aabb91f..995bc28daa 100644
--- a/setuptools/_distutils/command/register.py
+++ b/setuptools/_distutils/command/register.py
@@ -87,14 +87,14 @@ def _set_config(self):
             self.has_config = True
         else:
             if self.repository not in ('pypi', self.DEFAULT_REPOSITORY):
-                raise ValueError('%s not found in .pypirc' % self.repository)
+                raise ValueError(f'{self.repository} not found in .pypirc')
             if self.repository == 'pypi':
                 self.repository = self.DEFAULT_REPOSITORY
             self.has_config = False
 
     def classifiers(self):
         '''Fetch the list of classifiers from the server.'''
-        url = self.repository + '?:action=list_classifiers'
+        url = f'{self.repository}?:action=list_classifiers'
         response = urllib.request.urlopen(url)
         log.info(self._read_pypi_response(response))
 
@@ -104,7 +104,7 @@ def verify_metadata(self):
         (code, result) = self.post_to_server(self.build_post_data('verify'))
         log.info('Server response (%s): %s', code, result)
 
-    def send_metadata(self):  # noqa: C901
+    def send_metadata(self):    # noqa: C901
         '''Send the metadata to the package index server.
 
         Well, do the following:
@@ -174,7 +174,7 @@ def send_metadata(self):  # noqa: C901
             auth.add_password(self.realm, host, username, password)
             # send the info to the server and report the result
             code, result = self.post_to_server(self.build_post_data('submit'), auth)
-            self.announce('Server response ({}): {}'.format(code, result), logging.INFO)
+            self.announce(f'Server response ({code}): {result}', logging.INFO)
 
             # possibly save the login
             if code == 200:
@@ -191,7 +191,7 @@ def send_metadata(self):  # noqa: C901
                         logging.INFO,
                     )
                     self.announce(
-                        '(the login will be stored in %s)' % self._get_rc_file(),
+                        f'(the login will be stored in {self._get_rc_file()})',
                         logging.INFO,
                     )
                     choice = 'X'
@@ -226,8 +226,7 @@ def send_metadata(self):  # noqa: C901
                 log.info('You will receive an email shortly.')
                 log.info('Follow the instructions in it to ' 'complete registration.')
         elif choice == '3':
-            data = {':action': 'password_reset'}
-            data['email'] = ''
+            data = {':action': 'password_reset', 'email': ''}
             while not data['email']:
                 data['email'] = input('Your email address: ')
             code, result = self.post_to_server(data)
@@ -261,17 +260,14 @@ def build_post_data(self, action):
             data['metadata_version'] = '1.1'
         return data
 
-    def post_to_server(self, data, auth=None):  # noqa: C901
+    def post_to_server(self, data, auth=None):    # noqa: C901
         '''Post a query to the server, and return a string response.'''
         if 'name' in data:
-            self.announce(
-                'Registering {} to {}'.format(data['name'], self.repository),
-                logging.INFO,
-            )
+            self.announce(f"Registering {data['name']} to {self.repository}", logging.INFO)
         # Build up the MIME payload for the urllib2 POST data
         boundary = '--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
         sep_boundary = '\n--' + boundary
-        end_boundary = sep_boundary + '--'
+        end_boundary = f'{sep_boundary}--'
         body = io.StringIO()
         for key, value in data.items():
             # handle multiple entries for the same name
@@ -291,8 +287,7 @@ def post_to_server(self, data, auth=None):  # noqa: C901
 
         # build the Request
         headers = {
-            'Content-type': 'multipart/form-data; boundary=%s; charset=utf-8'
-            % boundary,
+            'Content-type': f'multipart/form-data; boundary={boundary}; charset=utf-8',
             'Content-length': str(len(body)),
         }
         req = urllib.request.Request(self.repository, body, headers)
diff --git a/setuptools/_distutils/command/sdist.py b/setuptools/_distutils/command/sdist.py
index ac489726ca..cb2cb7042f 100644
--- a/setuptools/_distutils/command/sdist.py
+++ b/setuptools/_distutils/command/sdist.py
@@ -25,9 +25,10 @@ def show_formats():
     from ..fancy_getopt import FancyGetopt
     from ..archive_util import ARCHIVE_FORMATS
 
-    formats = []
-    for format in ARCHIVE_FORMATS.keys():
-        formats.append(("formats=" + format, None, ARCHIVE_FORMATS[format][2]))
+    formats = [
+        (f"formats={format}", None, ARCHIVE_FORMATS[format][2])
+        for format in ARCHIVE_FORMATS.keys()
+    ]
     formats.sort()
     FancyGetopt(formats).print_help("List of available source distribution formats:")
 
@@ -149,9 +150,8 @@ def finalize_options(self):
 
         self.ensure_string_list('formats')
 
-        bad_format = archive_util.check_archive_formats(self.formats)
-        if bad_format:
-            raise DistutilsOptionError("unknown archive format '%s'" % bad_format)
+        if bad_format := archive_util.check_archive_formats(self.formats):
+            raise DistutilsOptionError(f"unknown archive format '{bad_format}'")
 
         if self.dist_dir is None:
             self.dist_dir = "dist"
@@ -285,11 +285,10 @@ def _add_defaults_standards(self):
                     self.warn(
                         "standard file not found: should have one of " + ', '.join(alts)
                     )
+            elif self._cs_path_exists(fn):
+                self.filelist.append(fn)
             else:
-                if self._cs_path_exists(fn):
-                    self.filelist.append(fn)
-                else:
-                    self.warn("standard file '%s' not found" % fn)
+                self.warn(f"standard file '{fn}' not found")
 
     def _add_defaults_optional(self):
         optional = ['tests/test*.py', 'test/test*.py', 'setup.cfg']
@@ -315,20 +314,21 @@ def _add_defaults_python(self):
 
     def _add_defaults_data_files(self):
         # getting distribution.data_files
-        if self.distribution.has_data_files():
-            for item in self.distribution.data_files:
-                if isinstance(item, str):
-                    # plain file
-                    item = convert_path(item)
-                    if os.path.isfile(item):
-                        self.filelist.append(item)
-                else:
-                    # a (dirname, filenames) tuple
-                    dirname, filenames = item
-                    for f in filenames:
-                        f = convert_path(f)
-                        if os.path.isfile(f):
-                            self.filelist.append(f)
+        if not self.distribution.has_data_files():
+            return
+        for item in self.distribution.data_files:
+            if isinstance(item, str):
+                # plain file
+                item = convert_path(item)
+                if os.path.isfile(item):
+                    self.filelist.append(item)
+            else:
+                # a (dirname, filenames) tuple
+                dirname, filenames = item
+                for f in filenames:
+                    f = convert_path(f)
+                    if os.path.isfile(f):
+                        self.filelist.append(f)
 
     def _add_defaults_ext(self):
         if self.distribution.has_ext_modules():
@@ -395,13 +395,9 @@ def prune_file_list(self):
         self.filelist.exclude_pattern(None, prefix=build.build_base)
         self.filelist.exclude_pattern(None, prefix=base_dir)
 
-        if sys.platform == 'win32':
-            seps = r'/|\\'
-        else:
-            seps = '/'
-
+        seps = r'/|\\' if sys.platform == 'win32' else '/'
         vcs_dirs = ['RCS', 'CVS', r'\.svn', r'\.hg', r'\.git', r'\.bzr', '_darcs']
-        vcs_ptrn = r'(^|{})({})({}).*'.format(seps, '|'.join(vcs_dirs), seps)
+        vcs_ptrn = f"(^|{seps})({'|'.join(vcs_dirs)})({seps}).*"
         self.filelist.exclude_pattern(vcs_ptrn, is_regex=1)
 
     def write_manifest(self):
@@ -421,7 +417,7 @@ def write_manifest(self):
         self.execute(
             file_util.write_file,
             (self.manifest, content),
-            "writing manifest file '%s'" % self.manifest,
+            f"writing manifest file '{self.manifest}'",
         )
 
     def _manifest_is_not_generated(self):
@@ -474,10 +470,10 @@ def make_release_tree(self, base_dir, files):
 
         if hasattr(os, 'link'):  # can make hard links on this system
             link = 'hard'
-            msg = "making hard links in %s..." % base_dir
+            msg = f"making hard links in {base_dir}..."
         else:  # nope, have to copy
             link = None
-            msg = "copying files to %s..." % base_dir
+            msg = f"copying files to {base_dir}..."
 
         if not files:
             log.warning("no files to distribute -- empty manifest?")
diff --git a/setuptools/_distutils/command/upload.py b/setuptools/_distutils/command/upload.py
index caf15f04a6..256bf4be60 100644
--- a/setuptools/_distutils/command/upload.py
+++ b/setuptools/_distutils/command/upload.py
@@ -74,10 +74,10 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
         # Makes sure the repository URL is compliant
         schema, netloc, url, params, query, fragments = urlparse(self.repository)
         if params or query or fragments:
-            raise AssertionError("Incompatible url %s" % self.repository)
+            raise AssertionError(f"Incompatible url {self.repository}")
 
         if schema not in ('http', 'https'):
-            raise AssertionError("unsupported schema " + schema)
+            raise AssertionError(f"unsupported schema {schema}")
 
         # Sign if requested
         if self.sign:
@@ -96,17 +96,13 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
 
         meta = self.distribution.metadata
         data = {
-            # action
             ':action': 'file_upload',
             'protocol_version': '1',
-            # identify release
             'name': meta.get_name(),
             'version': meta.get_version(),
-            # file content
             'content': (os.path.basename(filename), content),
             'filetype': command,
             'pyversion': pyversion,
-            # additional meta-data
             'metadata_version': '1.0',
             'summary': meta.get_description(),
             'home_page': meta.get_url(),
@@ -118,14 +114,12 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
             'platform': meta.get_platforms(),
             'classifiers': meta.get_classifiers(),
             'download_url': meta.get_download_url(),
-            # PEP 314
             'provides': meta.get_provides(),
             'requires': meta.get_requires(),
             'obsoletes': meta.get_obsoletes(),
+            'comment': '',
         }
 
-        data['comment'] = ''
-
         # file content digests
         for digest_name, digest_cons in _FILE_CONTENT_DIGESTS.items():
             if digest_cons is None:
@@ -137,11 +131,11 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
                 pass
 
         if self.sign:
-            with open(filename + ".asc", "rb") as f:
-                data['gpg_signature'] = (os.path.basename(filename) + ".asc", f.read())
+            with open(f"{filename}.asc", "rb") as f:
+                data['gpg_signature'] = f"{os.path.basename(filename)}.asc", f.read()
 
         # set up the authentication
-        user_pass = (self.username + ":" + self.password).encode('ascii')
+        user_pass = f"{self.username}:{self.password}".encode('ascii')
         # The exact encoding of the authentication string is debated.
         # Anyway PyPI only accepts ascii for both username or password.
         auth = "Basic " + standard_b64encode(user_pass).decode('ascii')
@@ -158,7 +152,7 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
                 value = [value]
             for value in value:
                 if type(value) is tuple:
-                    title += '; filename="%s"' % value[0]
+                    title += f'; filename="{value[0]}"'
                     value = value[1]
                 else:
                     value = str(value).encode('utf-8')
@@ -169,12 +163,12 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
         body.write(end_boundary)
         body = body.getvalue()
 
-        msg = "Submitting {} to {}".format(filename, self.repository)
+        msg = f"Submitting {filename} to {self.repository}"
         self.announce(msg, logging.INFO)
 
         # build the Request
         headers = {
-            'Content-type': 'multipart/form-data; boundary=%s' % boundary,
+            'Content-type': f'multipart/form-data; boundary={boundary}',
             'Content-length': str(len(body)),
             'Authorization': auth,
         }
@@ -193,14 +187,12 @@ def upload_file(self, command, pyversion, filename):  # noqa: C901
             raise
 
         if status == 200:
-            self.announce(
-                'Server response ({}): {}'.format(status, reason), logging.INFO
-            )
+            self.announce(f'Server response ({status}): {reason}', logging.INFO)
             if self.show_response:
                 text = self._read_pypi_response(result)
                 msg = '\n'.join(('-' * 75, text, '-' * 75))
                 self.announce(msg, logging.INFO)
         else:
-            msg = 'Upload failed ({}): {}'.format(status, reason)
+            msg = f'Upload failed ({status}): {reason}'
             self.announce(msg, logging.ERROR)
             raise DistutilsError(msg)
diff --git a/setuptools/_distutils/config.py b/setuptools/_distutils/config.py
index 9a4044adaf..a05e855d37 100644
--- a/setuptools/_distutils/config.py
+++ b/setuptools/_distutils/config.py
@@ -44,11 +44,11 @@ def _store_pypirc(self, username, password):
         with os.fdopen(os.open(rc, os.O_CREAT | os.O_WRONLY, 0o600), 'w') as f:
             f.write(DEFAULT_PYPIRC % (username, password))
 
-    def _read_pypirc(self):  # noqa: C901
+    def _read_pypirc(self):    # noqa: C901
         """Reads the .pypirc file."""
         rc = self._get_rc_file()
         if os.path.exists(rc):
-            self.announce('Using PyPI login from %s' % rc)
+            self.announce(f'Using PyPI login from {rc}')
             repository = self.repository or self.DEFAULT_REPOSITORY
 
             config = RawConfigParser()
@@ -62,7 +62,7 @@ def _read_pypirc(self):  # noqa: C901
                     for server in index_servers.split('\n')
                     if server.strip() != ''
                 ]
-                if _servers == []:
+                if not _servers:
                     # nothing set, let's try to get the default pypi
                     if 'pypi' in sections:
                         _servers = ['pypi']
@@ -71,9 +71,7 @@ def _read_pypirc(self):  # noqa: C901
                         # an empty dict
                         return {}
                 for server in _servers:
-                    current = {'server': server}
-                    current['username'] = config.get(server, 'username')
-
+                    current = {'server': server, 'username': config.get(server, 'username')}
                     # optional params
                     for key, default in (
                         ('repository', self.DEFAULT_REPOSITORY),
diff --git a/setuptools/_distutils/core.py b/setuptools/_distutils/core.py
index 05d2971994..4d24d68ccd 100644
--- a/setuptools/_distutils/core.py
+++ b/setuptools/_distutils/core.py
@@ -93,7 +93,7 @@ def gen_usage(script_name):
 )
 
 
-def setup(**attrs):  # noqa: C901
+def setup(**attrs):    # noqa: C901
     """The gateway to the Distutils: do everything your setup script needs
     to do, in a highly flexible and user-driven way.  Briefly: create a
     Distribution instance; find and parse config files; parse the command
@@ -147,9 +147,9 @@ class found in 'cmdclass' is used in place of the default, which is
         _setup_distribution = dist = klass(attrs)
     except DistutilsSetupError as msg:
         if 'name' not in attrs:
-            raise SystemExit("error in setup command: %s" % msg)
+            raise SystemExit(f"error in setup command: {msg}")
         else:
-            raise SystemExit("error in {} setup command: {}".format(attrs['name'], msg))
+            raise SystemExit(f"error in {attrs['name']} setup command: {msg}")
 
     if _setup_stop_after == "init":
         return dist
@@ -181,10 +181,7 @@ class found in 'cmdclass' is used in place of the default, which is
         return dist
 
     # And finally, run all the commands found on the command line.
-    if ok:
-        return run_commands(dist)
-
-    return dist
+    return run_commands(dist) if ok else dist
 
 
 # setup ()
@@ -202,17 +199,16 @@ def run_commands(dist):
     except KeyboardInterrupt:
         raise SystemExit("interrupted")
     except OSError as exc:
-        if DEBUG:
-            sys.stderr.write("error: {}\n".format(exc))
-            raise
-        else:
-            raise SystemExit("error: {}".format(exc))
+        if not DEBUG:
+            raise SystemExit(f"error: {exc}")
 
+        sys.stderr.write(f"error: {exc}\n")
+        raise
     except (DistutilsError, CCompilerError) as msg:
         if DEBUG:
             raise
         else:
-            raise SystemExit("error: " + str(msg))
+            raise SystemExit(f"error: {str(msg)}")
 
     return dist
 
diff --git a/setuptools/_distutils/cygwinccompiler.py b/setuptools/_distutils/cygwinccompiler.py
index 47efa377c5..6a15fb3a25 100644
--- a/setuptools/_distutils/cygwinccompiler.py
+++ b/setuptools/_distutils/cygwinccompiler.py
@@ -61,7 +61,7 @@ def get_msvcr():
     try:
         return _msvcr_lookup[msc_ver]
     except KeyError:
-        raise ValueError("Unknown MS Compiler version %s " % msc_ver)
+        raise ValueError(f"Unknown MS Compiler version {msc_ver} ")
 
 
 _runtime_library_dirs_msg = (
@@ -87,28 +87,24 @@ def __init__(self, verbose=0, dry_run=0, force=0):
         super().__init__(verbose, dry_run, force)
 
         status, details = check_config_h()
-        self.debug_print(
-            "Python's GCC status: {} (details: {})".format(status, details)
-        )
+        self.debug_print(f"Python's GCC status: {status} (details: {details})")
         if status is not CONFIG_H_OK:
             self.warn(
-                "Python's pyconfig.h doesn't seem to support your compiler. "
-                "Reason: %s. "
-                "Compiling may fail because of undefined preprocessor macros." % details
+                f"Python's pyconfig.h doesn't seem to support your compiler. Reason: {details}. Compiling may fail because of undefined preprocessor macros."
             )
 
         self.cc = os.environ.get('CC', 'gcc')
         self.cxx = os.environ.get('CXX', 'g++')
 
-        self.linker_dll = self.cc
         shared_option = "-shared"
 
+        self.linker_dll = self.cc
         self.set_executables(
-            compiler='%s -mcygwin -O -Wall' % self.cc,
-            compiler_so='%s -mcygwin -mdll -O -Wall' % self.cc,
-            compiler_cxx='%s -mcygwin -O -Wall' % self.cxx,
-            linker_exe='%s -mcygwin' % self.cc,
-            linker_so=('{} -mcygwin {}'.format(self.linker_dll, shared_option)),
+            compiler=f'{self.cc} -mcygwin -O -Wall',
+            compiler_so=f'{self.cc} -mcygwin -mdll -O -Wall',
+            compiler_cxx=f'{self.cxx} -mcygwin -O -Wall',
+            linker_exe=f'{self.cc} -mcygwin',
+            linker_so=f'{self.linker_dll} -mcygwin {shared_option}',
         )
 
         # Include the appropriate MSVC runtime library if Python was built
@@ -194,13 +190,12 @@ def link(
             )
 
             # generate the filenames for these files
-            def_file = os.path.join(temp_dir, dll_name + ".def")
+            def_file = os.path.join(temp_dir, f"{dll_name}.def")
 
             # Generate .def file
-            contents = ["LIBRARY %s" % os.path.basename(output_filename), "EXPORTS"]
-            for sym in export_symbols:
-                contents.append(sym)
-            self.execute(write_file, (def_file, contents), "writing %s" % def_file)
+            contents = [f"LIBRARY {os.path.basename(output_filename)}", "EXPORTS"]
+            contents.extend(iter(export_symbols))
+            self.execute(write_file, (def_file, contents), f"writing {def_file}")
 
             # next add options for def-file
 
@@ -270,17 +265,17 @@ class Mingw32CCompiler(CygwinCCompiler):
     def __init__(self, verbose=0, dry_run=0, force=0):
         super().__init__(verbose, dry_run, force)
 
-        shared_option = "-shared"
-
         if is_cygwincc(self.cc):
             raise CCompilerError('Cygwin gcc cannot be used with --compiler=mingw32')
 
+        shared_option = "-shared"
+
         self.set_executables(
-            compiler='%s -O -Wall' % self.cc,
-            compiler_so='%s -mdll -O -Wall' % self.cc,
-            compiler_cxx='%s -O -Wall' % self.cxx,
-            linker_exe='%s' % self.cc,
-            linker_so='{} {}'.format(self.linker_dll, shared_option),
+            compiler=f'{self.cc} -O -Wall',
+            compiler_so=f'{self.cc} -mdll -O -Wall',
+            compiler_cxx=f'{self.cxx} -O -Wall',
+            linker_exe=f'{self.cc}',
+            linker_so=f'{self.linker_dll} {shared_option}',
         )
 
     def runtime_library_dir_option(self, dir):
@@ -334,13 +329,13 @@ def check_config_h():
         config_h = open(fn)
         try:
             if "__GNUC__" in config_h.read():
-                return CONFIG_H_OK, "'%s' mentions '__GNUC__'" % fn
+                return CONFIG_H_OK, f"'{fn}' mentions '__GNUC__'"
             else:
-                return CONFIG_H_NOTOK, "'%s' does not mention '__GNUC__'" % fn
+                return CONFIG_H_NOTOK, f"'{fn}' does not mention '__GNUC__'"
         finally:
             config_h.close()
     except OSError as exc:
-        return (CONFIG_H_UNCERTAIN, "couldn't read '{}': {}".format(fn, exc.strerror))
+        return CONFIG_H_UNCERTAIN, f"couldn't read '{fn}': {exc.strerror}"
 
 
 def is_cygwincc(cc):
diff --git a/setuptools/_distutils/dir_util.py b/setuptools/_distutils/dir_util.py
index 23dc3392a2..7b45bbf7eb 100644
--- a/setuptools/_distutils/dir_util.py
+++ b/setuptools/_distutils/dir_util.py
@@ -12,7 +12,7 @@
 _path_created = {}
 
 
-def mkpath(name, mode=0o777, verbose=1, dry_run=0):  # noqa: C901
+def mkpath(name, mode=0o777, verbose=1, dry_run=0):    # noqa: C901
     """Create a directory and any missing ancestor directories.
 
     If the directory already exists (or if 'name' is the empty string, which
@@ -75,9 +75,7 @@ def mkpath(name, mode=0o777, verbose=1, dry_run=0):  # noqa: C901
                 os.mkdir(head, mode)
             except OSError as exc:
                 if not (exc.errno == errno.EEXIST and os.path.isdir(head)):
-                    raise DistutilsFileError(
-                        "could not create '{}': {}".format(head, exc.args[-1])
-                    )
+                    raise DistutilsFileError(f"could not create '{head}': {exc.args[-1]}")
             created_dirs.append(head)
 
         _path_created[abs_head] = 1
@@ -94,11 +92,7 @@ def create_tree(base_dir, files, mode=0o777, verbose=1, dry_run=0):
     will be created if it doesn't already exist.  'mode', 'verbose' and
     'dry_run' flags are as for 'mkpath()'.
     """
-    # First get the list of directories to create
-    need_dir = set()
-    for file in files:
-        need_dir.add(os.path.join(base_dir, os.path.dirname(file)))
-
+    need_dir = {os.path.join(base_dir, os.path.dirname(file)) for file in files}
     # Now create them
     for dir in sorted(need_dir):
         mkpath(dir, mode, verbose=verbose, dry_run=dry_run)
@@ -136,16 +130,14 @@ def copy_tree(  # noqa: C901
     from distutils.file_util import copy_file
 
     if not dry_run and not os.path.isdir(src):
-        raise DistutilsFileError("cannot copy tree '%s': not a directory" % src)
+        raise DistutilsFileError(f"cannot copy tree '{src}': not a directory")
     try:
         names = os.listdir(src)
     except OSError as e:
         if dry_run:
             names = []
         else:
-            raise DistutilsFileError(
-                "error listing files in '{}': {}".format(src, e.strerror)
-            )
+            raise DistutilsFileError(f"error listing files in '{src}': {e.strerror}")
 
     if not dry_run:
         mkpath(dst, verbose=verbose)
@@ -238,6 +230,6 @@ def ensure_relative(path):
     This is useful to make 'path' the second argument to os.path.join().
     """
     drive, path = os.path.splitdrive(path)
-    if path[0:1] == os.sep:
+    if path[:1] == os.sep:
         path = drive + path[1:]
     return path
diff --git a/setuptools/_distutils/dist.py b/setuptools/_distutils/dist.py
index 7c0f0e5b78..51472218c4 100644
--- a/setuptools/_distutils/dist.py
+++ b/setuptools/_distutils/dist.py
@@ -124,7 +124,7 @@ class Distribution:
 
     # -- Creation/initialization methods -------------------------------
 
-    def __init__(self, attrs=None):  # noqa: C901
+    def __init__(self, attrs=None):    # noqa: C901
         """Construct a new Distribution instance: initialize all the
         attributes of a Distribution, and then use 'attrs' (a dictionary
         mapping attribute names to values) to assign some of those
@@ -149,7 +149,7 @@ def __init__(self, attrs=None):  # noqa: C901
         # object in a sneaky and underhanded (but efficient!) way.
         self.metadata = DistributionMetadata()
         for basename in self.metadata._METHOD_BASENAMES:
-            method_name = "get_" + basename
+            method_name = f"get_{basename}"
             setattr(self, method_name, getattr(self.metadata, method_name))
 
         # 'cmdclass' maps command names to class objects, so we
@@ -254,14 +254,14 @@ def __init__(self, attrs=None):  # noqa: C901
             # Now work on the rest of the attributes.  Any attribute that's
             # not already defined is invalid!
             for key, val in attrs.items():
-                if hasattr(self.metadata, "set_" + key):
-                    getattr(self.metadata, "set_" + key)(val)
+                if hasattr(self.metadata, f"set_{key}"):
+                    getattr(self.metadata, f"set_{key}")(val)
                 elif hasattr(self.metadata, key):
                     setattr(self.metadata, key, val)
                 elif hasattr(self, key):
                     setattr(self, key, val)
                 else:
-                    msg = "Unknown distribution option: %s" % repr(key)
+                    msg = f"Unknown distribution option: {repr(key)}"
                     warnings.warn(msg)
 
         # no-user-cfg is handled before other command line args
@@ -301,21 +301,21 @@ def dump_option_dicts(self, header=None, commands=None, indent=""):
 
         if header is not None:
             self.announce(indent + header)
-            indent = indent + "  "
+            indent = f"{indent}  "
 
         if not commands:
-            self.announce(indent + "no commands known yet")
+            self.announce(f"{indent}no commands known yet")
             return
 
         for cmd_name in commands:
             opt_dict = self.command_options.get(cmd_name)
             if opt_dict is None:
-                self.announce(indent + "no option dict for '%s' command" % cmd_name)
+                self.announce(f"{indent}no option dict for '{cmd_name}' command")
             else:
-                self.announce(indent + "option dict for '%s' command:" % cmd_name)
+                self.announce(f"{indent}option dict for '{cmd_name}' command:")
                 out = pformat(opt_dict)
                 for line in out.split('\n'):
-                    self.announce(indent + "  " + line)
+                    self.announce(f"{indent}  {line}")
 
     # -- Config file finding/parsing methods ---------------------------
 
@@ -338,7 +338,7 @@ def find_config_files(self):
         files = [str(path) for path in self._gen_paths() if os.path.isfile(path)]
 
         if DEBUG:
-            self.announce("using config files: %s" % ', '.join(files))
+            self.announce(f"using config files: {', '.join(files)}")
 
         return files
 
@@ -347,10 +347,10 @@ def _gen_paths(self):
         sys_dir = pathlib.Path(sys.modules['distutils'].__file__).parent
         yield sys_dir / "distutils.cfg"
 
-        # The per-user config file
-        prefix = '.' * (os.name == 'posix')
-        filename = prefix + 'pydistutils.cfg'
         if self.want_user_cfg:
+            # The per-user config file
+            prefix = '.' * (os.name == 'posix')
+            filename = f'{prefix}pydistutils.cfg'
             yield pathlib.Path('~').expanduser() / filename
 
         # All platforms support local setup.cfg
@@ -394,7 +394,7 @@ def parse_config_files(self, filenames=None):  # noqa: C901
         parser = ConfigParser()
         for filename in filenames:
             if DEBUG:
-                self.announce("  reading %s" % filename)
+                self.announce(f"  reading {filename}")
             parser.read(filename)
             for section in parser.sections():
                 options = parser.options(section)
@@ -484,7 +484,7 @@ def parse_command_line(self):
         # each command listed on the command line.
         if self.help:
             self._show_help(
-                parser, display_options=len(self.commands) == 0, commands=self.commands
+                parser, display_options=not self.commands, commands=self.commands
             )
             return
 
@@ -509,7 +509,7 @@ def _get_toplevel_options(self):
             ),
         ]
 
-    def _parse_command_opts(self, parser, args):  # noqa: C901
+    def _parse_command_opts(self, parser, args):    # noqa: C901
         """Parse the command-line options for a single command.
         'parser' must be a FancyGetopt instance; 'args' must be the list
         of arguments, starting with the current command (whose options
@@ -524,7 +524,7 @@ def _parse_command_opts(self, parser, args):  # noqa: C901
         # Pull the current command from the head of the command line
         command = args[0]
         if not command_re.match(command):
-            raise SystemExit("invalid command name '%s'" % command)
+            raise SystemExit(f"invalid command name '{command}'")
         self.commands.append(command)
 
         # Dig up the command class that implements this command, so we
@@ -538,9 +538,7 @@ def _parse_command_opts(self, parser, args):  # noqa: C901
         # Require that the command class be derived from Command -- want
         # to be sure that the basic "command" interface is implemented.
         if not issubclass(cmd_class, Command):
-            raise DistutilsClassError(
-                "command class %s must subclass Command" % cmd_class
-            )
+            raise DistutilsClassError(f"command class {cmd_class} must subclass Command")
 
         # Also make sure that the command object provides a list of its
         # known options.
@@ -666,7 +664,7 @@ def _show_help(self, parser, global_options=1, display_options=1, commands=[]):
                 )
             else:
                 parser.set_option_table(klass.user_options)
-            parser.print_help("Options for '%s' command:" % klass.__name__)
+            parser.print_help(f"Options for '{klass.__name__}' command:")
             print('')
 
         print(gen_usage(self.script_name))
@@ -692,14 +690,11 @@ def handle_display_options(self, option_order):
         # display that metadata in the order in which the user supplied the
         # metadata options.
         any_display_options = 0
-        is_display_option = {}
-        for option in self.display_options:
-            is_display_option[option[0]] = 1
-
+        is_display_option = {option[0]: 1 for option in self.display_options}
         for opt, val in option_order:
             if val and is_display_option.get(opt):
                 opt = translate_longopt(opt)
-                value = getattr(self.metadata, "get_" + opt)()
+                value = getattr(self.metadata, f"get_{opt}")()
                 if opt in ('keywords', 'platforms'):
                     print(','.join(value))
                 elif opt in ('classifiers', 'provides', 'requires', 'obsoletes'):
@@ -714,7 +709,7 @@ def print_command_list(self, commands, header, max_length):
         """Print a subset of the list of all commands -- used by
         'print_commands()'.
         """
-        print(header + ":")
+        print(f"{header}:")
 
         for cmd in commands:
             klass = self.cmdclass.get(cmd)
@@ -738,15 +733,8 @@ def print_commands(self):
         import distutils.command
 
         std_commands = distutils.command.__all__
-        is_std = {}
-        for cmd in std_commands:
-            is_std[cmd] = 1
-
-        extra_commands = []
-        for cmd in self.cmdclass.keys():
-            if not is_std.get(cmd):
-                extra_commands.append(cmd)
-
+        is_std = {cmd: 1 for cmd in std_commands}
+        extra_commands = [cmd for cmd in self.cmdclass.keys() if not is_std.get(cmd)]
         max_length = 0
         for cmd in std_commands + extra_commands:
             if len(cmd) > max_length:
@@ -769,15 +757,8 @@ def get_command_list(self):
         import distutils.command
 
         std_commands = distutils.command.__all__
-        is_std = {}
-        for cmd in std_commands:
-            is_std[cmd] = 1
-
-        extra_commands = []
-        for cmd in self.cmdclass.keys():
-            if not is_std.get(cmd):
-                extra_commands.append(cmd)
-
+        is_std = {cmd: 1 for cmd in std_commands}
+        extra_commands = [cmd for cmd in self.cmdclass.keys() if not is_std.get(cmd)]
         rv = []
         for cmd in std_commands + extra_commands:
             klass = self.cmdclass.get(cmd)
@@ -816,12 +797,11 @@ def get_command_class(self, command):
         Raises DistutilsModuleError if the expected module could not be
         found, or if that module does not define the expected class.
         """
-        klass = self.cmdclass.get(command)
-        if klass:
+        if klass := self.cmdclass.get(command):
             return klass
 
         for pkgname in self.get_command_packages():
-            module_name = "{}.{}".format(pkgname, command)
+            module_name = f"{pkgname}.{command}"
             klass_name = command
 
             try:
@@ -834,14 +814,13 @@ def get_command_class(self, command):
                 klass = getattr(module, klass_name)
             except AttributeError:
                 raise DistutilsModuleError(
-                    "invalid command '%s' (no class '%s' in module '%s')"
-                    % (command, klass_name, module_name)
+                    f"invalid command '{command}' (no class '{klass_name}' in module '{module_name}')"
                 )
 
             self.cmdclass[command] = klass
             return klass
 
-        raise DistutilsModuleError("invalid command '%s'" % command)
+        raise DistutilsModuleError(f"invalid command '{command}'")
 
     def get_command_obj(self, command, create=1):
         """Return the command object for 'command'.  Normally this object
@@ -853,26 +832,19 @@ def get_command_obj(self, command, create=1):
         if not cmd_obj and create:
             if DEBUG:
                 self.announce(
-                    "Distribution.get_command_obj(): "
-                    "creating '%s' command object" % command
+                    f"Distribution.get_command_obj(): creating '{command}' command object"
                 )
 
             klass = self.get_command_class(command)
             cmd_obj = self.command_obj[command] = klass(self)
             self.have_run[command] = 0
 
-            # Set any options that were supplied in config files
-            # or on the command line.  (NB. support for error
-            # reporting is lame here: any errors aren't reported
-            # until 'finalize_options()' is called, which means
-            # we won't report the source of the error.)
-            options = self.command_options.get(command)
-            if options:
+            if options := self.command_options.get(command):
                 self._set_command_options(cmd_obj, options)
 
         return cmd_obj
 
-    def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
+    def _set_command_options(self, command_obj, option_dict=None):    # noqa: C901
         """Set the options for 'command_obj' from 'option_dict'.  Basically
         this means copying elements of a dictionary ('option_dict') to
         attributes of an instance ('command').
@@ -886,10 +858,10 @@ def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
             option_dict = self.get_option_dict(command_name)
 
         if DEBUG:
-            self.announce("  setting options for '%s' command:" % command_name)
+            self.announce(f"  setting options for '{command_name}' command:")
         for option, (source, value) in option_dict.items():
             if DEBUG:
-                self.announce("    {} = {} (from {})".format(option, value, source))
+                self.announce(f"    {option} = {value} (from {source})")
             try:
                 bool_opts = [translate_longopt(o) for o in command_obj.boolean_options]
             except AttributeError:
@@ -909,8 +881,7 @@ def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
                     setattr(command_obj, option, value)
                 else:
                     raise DistutilsOptionError(
-                        "error in %s: command '%s' has no such option '%s'"
-                        % (source, command_name, option)
+                        f"error in {source}: command '{command_name}' has no such option '{option}'"
                     )
             except ValueError as msg:
                 raise DistutilsOptionError(msg)
@@ -1089,9 +1060,7 @@ def _read_field(name):
 
         def _read_list(name):
             values = msg.get_all(name, None)
-            if values == []:
-                return None
-            return values
+            return None if values == [] else values
 
         metadata_version = msg['metadata-version']
         self.name = _read_field('name')
@@ -1178,7 +1147,7 @@ def maybe_write(header, val):
     def _write_list(self, file, name, values):
         values = values or []
         for value in values:
-            file.write('{}: {}\n'.format(name, value))
+            file.write(f'{name}: {value}\n')
 
     # -- Metadata query methods ----------------------------------------
 
@@ -1189,7 +1158,7 @@ def get_version(self):
         return self.version or "0.0.0"
 
     def get_fullname(self):
-        return "{}-{}".format(self.get_name(), self.get_version())
+        return f"{self.get_name()}-{self.get_version()}"
 
     def get_author(self):
         return self.author
@@ -1281,7 +1250,4 @@ def fix_help_options(options):
     """Convert a 4-tuple 'help_options' list as found in various command
     classes to the 3-tuple form required by FancyGetopt.
     """
-    new_options = []
-    for help_tuple in options:
-        new_options.append(help_tuple[0:3])
-    return new_options
+    return [help_tuple[:3] for help_tuple in options]
diff --git a/setuptools/_distutils/extension.py b/setuptools/_distutils/extension.py
index 6b8575de29..6b57b10712 100644
--- a/setuptools/_distutils/extension.py
+++ b/setuptools/_distutils/extension.py
@@ -127,10 +127,10 @@ def __init__(
         self.optional = optional
 
         # If there are unknown keyword options, warn about them
-        if len(kw) > 0:
+        if kw:
             options = [repr(option) for option in kw]
             options = ', '.join(sorted(options))
-            msg = "Unknown Extension options: %s" % options
+            msg = f"Unknown Extension options: {options}"
             warnings.warn(msg)
 
     def __repr__(self):
@@ -142,7 +142,7 @@ def __repr__(self):
         )
 
 
-def read_setup_file(filename):  # noqa: C901
+def read_setup_file(filename):    # noqa: C901
     """Reads a Setup file and returns Extension instances."""
     from distutils.sysconfig import parse_makefile, expand_makefile_vars, _variable_rx
 
@@ -173,7 +173,7 @@ def read_setup_file(filename):  # noqa: C901
                 continue
 
             if line[0] == line[-1] == "*":
-                file.warn("'%s' lines not handled yet" % line)
+                file.warn(f"'{line}' lines not handled yet")
                 continue
 
             line = expand_makefile_vars(line, vars)
@@ -196,7 +196,7 @@ def read_setup_file(filename):  # noqa: C901
                     continue
 
                 suffix = os.path.splitext(word)[1]
-                switch = word[0:2]
+                switch = word[:2]
                 value = word[2:]
 
                 if suffix in (".c", ".cc", ".cpp", ".cxx", ".c++", ".m", ".mm"):
@@ -211,7 +211,7 @@ def read_setup_file(filename):  # noqa: C901
                     if equals == -1:  # bare "-DFOO" -- no value
                         ext.define_macros.append((value, None))
                     else:  # "-DFOO=blah"
-                        ext.define_macros.append((value[0:equals], value[equals + 2 :]))
+                        ext.define_macros.append((value[:equals], value[equals + 2 :]))
                 elif switch == "-U":
                     ext.undef_macros.append(value)
                 elif switch == "-C":  # only here 'cause makesetup has it!
@@ -239,7 +239,7 @@ def read_setup_file(filename):  # noqa: C901
                     # and append it to sources.  Hmmmm.
                     ext.extra_objects.append(word)
                 else:
-                    file.warn("unrecognized argument '%s'" % word)
+                    file.warn(f"unrecognized argument '{word}'")
 
             extensions.append(ext)
     finally:
diff --git a/setuptools/_distutils/fancy_getopt.py b/setuptools/_distutils/fancy_getopt.py
index 3b887dc5a4..83156bc0a1 100644
--- a/setuptools/_distutils/fancy_getopt.py
+++ b/setuptools/_distutils/fancy_getopt.py
@@ -8,6 +8,7 @@
   * options set attributes of a passed-in object
 """
 
+
 import sys
 import string
 import re
@@ -19,10 +20,10 @@
 # utilities, we use '-' in place of '_'.  (The spirit of LISP lives on!)
 # The similarities to NAME are again not a coincidence...
 longopt_pat = r'[a-zA-Z](?:[a-zA-Z0-9-]*)'
-longopt_re = re.compile(r'^%s$' % longopt_pat)
+longopt_re = re.compile(f'^{longopt_pat}$')
 
 # For recognizing "negative alias" options, eg. "quiet=!verbose"
-neg_alias_re = re.compile("^({})=!({})$".format(longopt_pat, longopt_pat))
+neg_alias_re = re.compile(f"^({longopt_pat})=!({longopt_pat})$")
 
 # This is used to translate long options to legitimate Python identifiers
 # (for use as attributes of some object).
@@ -93,12 +94,11 @@ def set_option_table(self, option_table):
     def add_option(self, long_option, short_option=None, help_string=None):
         if long_option in self.option_index:
             raise DistutilsGetoptError(
-                "option conflict: already an option '%s'" % long_option
+                f"option conflict: already an option '{long_option}'"
             )
-        else:
-            option = (long_option, short_option, help_string)
-            self.option_table.append(option)
-            self.option_index[long_option] = option
+        option = (long_option, short_option, help_string)
+        self.option_table.append(option)
+        self.option_index[long_option] = option
 
     def has_option(self, long_option):
         """Return true if the option table for this parser has an
@@ -116,13 +116,11 @@ def _check_alias_dict(self, aliases, what):
         for alias, opt in aliases.items():
             if alias not in self.option_index:
                 raise DistutilsGetoptError(
-                    ("invalid %s '%s': " "option '%s' not defined")
-                    % (what, alias, alias)
+                    f"invalid {what} '{alias}': option '{alias}' not defined"
                 )
             if opt not in self.option_index:
                 raise DistutilsGetoptError(
-                    ("invalid %s '%s': " "aliased option '%s' not defined")
-                    % (what, alias, opt)
+                    f"invalid {what} '{alias}': aliased option '{opt}' not defined"
                 )
 
     def set_aliases(self, alias):
@@ -138,13 +136,13 @@ def set_negative_aliases(self, negative_alias):
         self._check_alias_dict(negative_alias, "negative alias")
         self.negative_alias = negative_alias
 
-    def _grok_option_table(self):  # noqa: C901
+    def _grok_option_table(self):    # noqa: C901
         """Populate the various data structures that keep tabs on the
         option table.  Called by 'getopt()' before it can do anything
         worthwhile.
         """
-        self.long_opts = []
         self.short_opts = []
+        self.long_opts = []
         self.short2long.clear()
         self.repeat = {}
 
@@ -162,14 +160,14 @@ def _grok_option_table(self):  # noqa: C901
             # Type- and value-check the option names
             if not isinstance(long, str) or len(long) < 2:
                 raise DistutilsGetoptError(
-                    ("invalid long option '%s': " "must be a string of length >= 2")
-                    % long
+                    f"invalid long option '{long}': must be a string of length >= 2"
                 )
 
-            if not ((short is None) or (isinstance(short, str) and len(short) == 1)):
+            if short is not None and (
+                not isinstance(short, str) or len(short) != 1
+            ):
                 raise DistutilsGetoptError(
-                    "invalid short option '%s': "
-                    "must a single character or None" % short
+                    f"invalid short option '{short}': must a single character or None"
                 )
 
             self.repeat[long] = repeat
@@ -177,8 +175,8 @@ def _grok_option_table(self):  # noqa: C901
 
             if long[-1] == '=':  # option takes an argument?
                 if short:
-                    short = short + ':'
-                long = long[0:-1]
+                    short = f'{short}:'
+                long = long[:-1]
                 self.takes_arg[long] = 1
             else:
                 # Is option is a "negative alias" for some other option (eg.
@@ -187,8 +185,7 @@ def _grok_option_table(self):  # noqa: C901
                 if alias_to is not None:
                     if self.takes_arg[alias_to]:
                         raise DistutilsGetoptError(
-                            "invalid negative alias '%s': "
-                            "aliased option '%s' takes a value" % (long, alias_to)
+                            f"invalid negative alias '{long}': aliased option '{alias_to}' takes a value"
                         )
 
                     self.long_opts[-1] = long  # XXX redundant?!
@@ -200,9 +197,7 @@ def _grok_option_table(self):  # noqa: C901
             if alias_to is not None:
                 if self.takes_arg[long] != self.takes_arg[alias_to]:
                     raise DistutilsGetoptError(
-                        "invalid alias '%s': inconsistent with "
-                        "aliased option '%s' (one of them takes a value, "
-                        "the other doesn't" % (long, alias_to)
+                        f"invalid alias '{long}': inconsistent with aliased option '{alias_to}' (one of them takes a value, the other doesn't"
                     )
 
             # Now enforce some bondage on the long option name, so we can
@@ -211,8 +206,7 @@ def _grok_option_table(self):  # noqa: C901
             # '='.
             if not longopt_re.match(long):
                 raise DistutilsGetoptError(
-                    "invalid long option name '%s' "
-                    "(must be letters, numbers, hyphens only" % long
+                    f"invalid long option name '{long}' (must be letters, numbers, hyphens only"
                 )
 
             self.attr_name[long] = self.get_attr_name(long)
@@ -220,7 +214,7 @@ def _grok_option_table(self):  # noqa: C901
                 self.short_opts.append(short)
                 self.short2long[short[0]] = long
 
-    def getopt(self, args=None, object=None):  # noqa: C901
+    def getopt(self, args=None, object=None):    # noqa: C901
         """Parse command-line options in args. Store as attributes on object.
 
         If 'args' is None or not supplied, uses 'sys.argv[1:]'.  If
@@ -254,14 +248,12 @@ def getopt(self, args=None, object=None):  # noqa: C901
                 assert len(opt) > 2 and opt[:2] == '--'
                 opt = opt[2:]
 
-            alias = self.alias.get(opt)
-            if alias:
+            if alias := self.alias.get(opt):
                 opt = alias
 
             if not self.takes_arg[opt]:  # boolean option?
                 assert val == '', "boolean option can't have value"
-                alias = self.negative_alias.get(opt)
-                if alias:
+                if alias := self.negative_alias.get(opt):
                     opt = alias
                     val = 0
                 else:
@@ -276,10 +268,7 @@ def getopt(self, args=None, object=None):  # noqa: C901
             self.option_order.append((opt, val))
 
         # for opts
-        if created_object:
-            return args, object
-        else:
-            return args
+        return (args, object) if created_object else args
 
     def get_option_order(self):
         """Returns the list of (option, value) tuples processed by the
@@ -291,7 +280,7 @@ def get_option_order(self):
         else:
             return self.option_order
 
-    def generate_help(self, header=None):  # noqa: C901
+    def generate_help(self, header=None):    # noqa: C901
         """Generate help text (a list of strings, one per suggested line of
         output) from the option table for this FancyGetopt object.
         """
@@ -305,9 +294,9 @@ def generate_help(self, header=None):  # noqa: C901
             short = option[1]
             ell = len(long)
             if long[-1] == '=':
-                ell = ell - 1
+                ell -= 1
             if short is not None:
-                ell = ell + 5  # " (-x)" where short == 'x'
+                ell += 5
             if ell > max_opt:
                 max_opt = ell
 
@@ -338,16 +327,12 @@ def generate_help(self, header=None):  # noqa: C901
         line_width = 78
         text_width = line_width - opt_width
         big_indent = ' ' * opt_width
-        if header:
-            lines = [header]
-        else:
-            lines = ['Option summary:']
-
+        lines = [header] if header else ['Option summary:']
         for option in self.option_table:
             long, short, help = option[:3]
             text = wrap_text(help, text_width)
             if long[-1] == '=':
-                long = long[0:-1]
+                long = long[:-1]
 
             # Case 1: no short option at all (makes life easy)
             if short is None:
@@ -356,17 +341,14 @@ def generate_help(self, header=None):  # noqa: C901
                 else:
                     lines.append("  --%-*s  " % (max_opt, long))
 
-            # Case 2: we have a short option, so we have to include it
-            # just after the long option
             else:
-                opt_names = "{} (-{})".format(long, short)
+                opt_names = f"{long} (-{short})"
                 if text:
                     lines.append("  --%-*s  %s" % (max_opt, opt_names, text[0]))
                 else:
                     lines.append("  --%-*s" % opt_names)
 
-            for ell in text[1:]:
-                lines.append(big_indent + ell)
+            lines.extend(big_indent + ell for ell in text[1:])
         return lines
 
     def print_help(self, header=None, file=None):
@@ -423,7 +405,7 @@ def wrap_text(text, width):
             # chunk that's too big too fit on a line -- so we break
             # down and break it up at the line width
             if cur_len == 0:
-                cur_line.append(chunks[0][0:width])
+                cur_line.append(chunks[0][:width])
                 chunks[0] = chunks[0][width:]
 
             # all-whitespace chunks at the end of a line can be discarded
diff --git a/setuptools/_distutils/file_util.py b/setuptools/_distutils/file_util.py
index 3f3e21b567..39e22d741c 100644
--- a/setuptools/_distutils/file_util.py
+++ b/setuptools/_distutils/file_util.py
@@ -11,7 +11,7 @@
 _copy_action = {None: 'copying', 'hard': 'hard linking', 'sym': 'symbolically linking'}
 
 
-def _copy_file_contents(src, dst, buffer_size=16 * 1024):  # noqa: C901
+def _copy_file_contents(src, dst, buffer_size=16 * 1024):    # noqa: C901
     """Copy the file 'src' to 'dst'; both must be filenames.  Any error
     opening either file, reading from 'src', or writing to 'dst', raises
     DistutilsFileError.  Data is read/written in chunks of 'buffer_size'
@@ -26,30 +26,24 @@ def _copy_file_contents(src, dst, buffer_size=16 * 1024):  # noqa: C901
         try:
             fsrc = open(src, 'rb')
         except OSError as e:
-            raise DistutilsFileError("could not open '{}': {}".format(src, e.strerror))
+            raise DistutilsFileError(f"could not open '{src}': {e.strerror}")
 
         if os.path.exists(dst):
             try:
                 os.unlink(dst)
             except OSError as e:
-                raise DistutilsFileError(
-                    "could not delete '{}': {}".format(dst, e.strerror)
-                )
+                raise DistutilsFileError(f"could not delete '{dst}': {e.strerror}")
 
         try:
             fdst = open(dst, 'wb')
         except OSError as e:
-            raise DistutilsFileError(
-                "could not create '{}': {}".format(dst, e.strerror)
-            )
+            raise DistutilsFileError(f"could not create '{dst}': {e.strerror}")
 
         while True:
             try:
                 buf = fsrc.read(buffer_size)
             except OSError as e:
-                raise DistutilsFileError(
-                    "could not read from '{}': {}".format(src, e.strerror)
-                )
+                raise DistutilsFileError(f"could not read from '{src}': {e.strerror}")
 
             if not buf:
                 break
@@ -57,9 +51,7 @@ def _copy_file_contents(src, dst, buffer_size=16 * 1024):  # noqa: C901
             try:
                 fdst.write(buf)
             except OSError as e:
-                raise DistutilsFileError(
-                    "could not write to '{}': {}".format(dst, e.strerror)
-                )
+                raise DistutilsFileError(f"could not write to '{dst}': {e.strerror}")
     finally:
         if fdst:
             fdst.close()
@@ -113,7 +105,7 @@ def copy_file(  # noqa: C901
 
     if not os.path.isfile(src):
         raise DistutilsFileError(
-            "can't copy '%s': doesn't exist or not a regular file" % src
+            f"can't copy '{src}': doesn't exist or not a regular file"
         )
 
     if os.path.isdir(dst):
@@ -130,7 +122,7 @@ def copy_file(  # noqa: C901
     try:
         action = _copy_action[link]
     except KeyError:
-        raise ValueError("invalid value '%s' for 'link' argument" % link)
+        raise ValueError(f"invalid value '{link}' for 'link' argument")
 
     if verbose >= 1:
         if os.path.basename(dst) == os.path.basename(src):
@@ -164,18 +156,18 @@ def copy_file(  # noqa: C901
     if preserve_mode or preserve_times:
         st = os.stat(src)
 
-        # According to David Ascher <da@ski.org>, utime() should be done
-        # before chmod() (at least under NT).
-        if preserve_times:
-            os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))
-        if preserve_mode:
-            os.chmod(dst, S_IMODE(st[ST_MODE]))
+    # According to David Ascher <da@ski.org>, utime() should be done
+    # before chmod() (at least under NT).
+    if preserve_times:
+        os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))
+    if preserve_mode:
+        os.chmod(dst, S_IMODE(st[ST_MODE]))
 
     return (dst, 1)
 
 
 # XXX I suspect this is Unix-specific -- need porting help!
-def move_file(src, dst, verbose=1, dry_run=0):  # noqa: C901
+def move_file(src, dst, verbose=1, dry_run=0):    # noqa: C901
     """Move a file 'src' to 'dst'.  If 'dst' is a directory, the file will
     be moved into it with the same name; otherwise, 'src' is just renamed
     to 'dst'.  Return the new full name of the file.
@@ -193,18 +185,18 @@ def move_file(src, dst, verbose=1, dry_run=0):  # noqa: C901
         return dst
 
     if not isfile(src):
-        raise DistutilsFileError("can't move '%s': not a regular file" % src)
+        raise DistutilsFileError(f"can't move '{src}': not a regular file")
 
     if isdir(dst):
         dst = os.path.join(dst, basename(src))
     elif exists(dst):
         raise DistutilsFileError(
-            "can't move '{}': destination '{}' already exists".format(src, dst)
+            f"can't move '{src}': destination '{dst}' already exists"
         )
 
     if not isdir(dirname(dst)):
         raise DistutilsFileError(
-            "can't move '{}': destination '{}' not a valid path".format(src, dst)
+            f"can't move '{src}': destination '{dst}' not a valid path"
         )
 
     copy_it = False
@@ -215,9 +207,7 @@ def move_file(src, dst, verbose=1, dry_run=0):  # noqa: C901
         if num == errno.EXDEV:
             copy_it = True
         else:
-            raise DistutilsFileError(
-                "couldn't move '{}' to '{}': {}".format(src, dst, msg)
-            )
+            raise DistutilsFileError(f"couldn't move '{src}' to '{dst}': {msg}")
 
     if copy_it:
         copy_file(src, dst, verbose=verbose)
diff --git a/setuptools/_distutils/filelist.py b/setuptools/_distutils/filelist.py
index 6dadf923d7..3fee90de97 100644
--- a/setuptools/_distutils/filelist.py
+++ b/setuptools/_distutils/filelist.py
@@ -62,8 +62,7 @@ def sort(self):
         # Not a strict lexical sort!
         sortable_files = sorted(map(os.path.split, self.files))
         self.files = []
-        for sort_tuple in sortable_files:
-            self.files.append(os.path.join(*sort_tuple))
+        self.files.extend(os.path.join(*sort_tuple) for sort_tuple in sortable_files)
 
     # Other miscellaneous utility methods
 
@@ -83,25 +82,21 @@ def _parse_template_line(self, line):
 
         if action in ('include', 'exclude', 'global-include', 'global-exclude'):
             if len(words) < 2:
-                raise DistutilsTemplateError(
-                    "'%s' expects <pattern1> <pattern2> ..." % action
-                )
+                raise DistutilsTemplateError(f"'{action}' expects <pattern1> <pattern2> ...")
             patterns = [convert_path(w) for w in words[1:]]
         elif action in ('recursive-include', 'recursive-exclude'):
             if len(words) < 3:
                 raise DistutilsTemplateError(
-                    "'%s' expects <dir> <pattern1> <pattern2> ..." % action
+                    f"'{action}' expects <dir> <pattern1> <pattern2> ..."
                 )
             dir = convert_path(words[1])
             patterns = [convert_path(w) for w in words[2:]]
         elif action in ('graft', 'prune'):
             if len(words) != 2:
-                raise DistutilsTemplateError(
-                    "'%s' expects a single <dir_pattern>" % action
-                )
+                raise DistutilsTemplateError(f"'{action}' expects a single <dir_pattern>")
             dir_pattern = convert_path(words[1])
         else:
-            raise DistutilsTemplateError("unknown action '%s'" % action)
+            raise DistutilsTemplateError(f"unknown action '{action}'")
 
         return (action, patterns, dir, dir_pattern)
 
@@ -159,7 +154,7 @@ def process_template_line(self, line):  # noqa: C901
                     )
 
         elif action == 'recursive-include':
-            self.debug_print("recursive-include {} {}".format(dir, ' '.join(patterns)))
+            self.debug_print(f"recursive-include {dir} {' '.join(patterns)}")
             for pattern in patterns:
                 if not self.include_pattern(pattern, prefix=dir):
                     msg = (
@@ -168,7 +163,7 @@ def process_template_line(self, line):  # noqa: C901
                     log.warning(msg, pattern, dir)
 
         elif action == 'recursive-exclude':
-            self.debug_print("recursive-exclude {} {}".format(dir, ' '.join(patterns)))
+            self.debug_print(f"recursive-exclude {dir} {' '.join(patterns)}")
             for pattern in patterns:
                 if not self.exclude_pattern(pattern, prefix=dir):
                     log.warning(
@@ -181,21 +176,19 @@ def process_template_line(self, line):  # noqa: C901
                     )
 
         elif action == 'graft':
-            self.debug_print("graft " + dir_pattern)
+            self.debug_print(f"graft {dir_pattern}")
             if not self.include_pattern(None, prefix=dir_pattern):
                 log.warning("warning: no directories found matching '%s'", dir_pattern)
 
         elif action == 'prune':
-            self.debug_print("prune " + dir_pattern)
+            self.debug_print(f"prune {dir_pattern}")
             if not self.exclude_pattern(None, prefix=dir_pattern):
                 log.warning(
                     ("no previously-included directories found " "matching '%s'"),
                     dir_pattern,
                 )
         else:
-            raise DistutilsInternalError(
-                "this cannot happen: invalid action '%s'" % action
-            )
+            raise DistutilsInternalError(f"this cannot happen: invalid action '{action}'")
 
     # Filtering/selection methods
 
@@ -227,7 +220,7 @@ def include_pattern(self, pattern, anchor=1, prefix=None, is_regex=0):
         # XXX docstring lying about what the special chars are?
         files_found = False
         pattern_re = translate_pattern(pattern, anchor, prefix, is_regex)
-        self.debug_print("include_pattern: applying regex r'%s'" % pattern_re.pattern)
+        self.debug_print(f"include_pattern: applying regex r'{pattern_re.pattern}'")
 
         # delayed loading of allfiles list
         if self.allfiles is None:
@@ -235,7 +228,7 @@ def include_pattern(self, pattern, anchor=1, prefix=None, is_regex=0):
 
         for name in self.allfiles:
             if pattern_re.search(name):
-                self.debug_print(" adding " + name)
+                self.debug_print(f" adding {name}")
                 self.files.append(name)
                 files_found = True
         return files_found
@@ -249,10 +242,10 @@ def exclude_pattern(self, pattern, anchor=1, prefix=None, is_regex=0):
         """
         files_found = False
         pattern_re = translate_pattern(pattern, anchor, prefix, is_regex)
-        self.debug_print("exclude_pattern: applying regex r'%s'" % pattern_re.pattern)
+        self.debug_print(f"exclude_pattern: applying regex r'{pattern_re.pattern}'")
         for i in range(len(self.files) - 1, -1, -1):
             if pattern_re.search(self.files[i]):
-                self.debug_print(" removing " + self.files[i])
+                self.debug_print(f" removing {self.files[i]}")
                 del self.files[i]
                 files_found = True
         return files_found
@@ -341,11 +334,7 @@ def translate_pattern(pattern, anchor=1, prefix=None, is_regex=0):
     or just returned as-is (assumes it's a regex object).
     """
     if is_regex:
-        if isinstance(pattern, str):
-            return re.compile(pattern)
-        else:
-            return pattern
-
+        return re.compile(pattern) if isinstance(pattern, str) else pattern
     # ditch start and end characters
     start, _, end = glob_to_re('_').partition('_')
 
@@ -363,9 +352,8 @@ def translate_pattern(pattern, anchor=1, prefix=None, is_regex=0):
         if os.sep == '\\':
             sep = r'\\'
         pattern_re = pattern_re[len(start) : len(pattern_re) - len(end)]
-        pattern_re = r'{}\A{}{}.*{}{}'.format(start, prefix_re, sep, pattern_re, end)
-    else:  # no prefix -- respect anchor flag
-        if anchor:
-            pattern_re = r'{}\A{}'.format(start, pattern_re[len(start) :])
+        pattern_re = f'{start}\A{prefix_re}{sep}.*{pattern_re}{end}'
+    elif anchor:
+        pattern_re = f'{start}\A{pattern_re[len(start):]}'
 
     return re.compile(pattern_re)
diff --git a/setuptools/_distutils/msvc9compiler.py b/setuptools/_distutils/msvc9compiler.py
index f9f9f2d844..d0261dfa91 100644
--- a/setuptools/_distutils/msvc9compiler.py
+++ b/setuptools/_distutils/msvc9compiler.py
@@ -75,16 +75,16 @@
 class Reg:
     """Helper class to read values from the registry"""
 
-    def get_value(cls, path, key):
+    def get_value(self, path, key):
         for base in HKEYS:
-            d = cls.read_values(base, path)
+            d = self.read_values(base, path)
             if d and key in d:
                 return d[key]
         raise KeyError(key)
 
     get_value = classmethod(get_value)
 
-    def read_keys(cls, base, key):
+    def read_keys(self, base, key):
         """Return list of registry keys."""
         try:
             handle = RegOpenKeyEx(base, key)
@@ -103,7 +103,7 @@ def read_keys(cls, base, key):
 
     read_keys = classmethod(read_keys)
 
-    def read_values(cls, base, key):
+    def read_values(self, base, key):
         """Return dict of registry keys and values.
 
         All names are converted to lowercase.
@@ -120,20 +120,20 @@ def read_values(cls, base, key):
             except RegError:
                 break
             name = name.lower()
-            d[cls.convert_mbcs(name)] = cls.convert_mbcs(value)
+            d[self.convert_mbcs(name)] = self.convert_mbcs(value)
             i += 1
         return d
 
     read_values = classmethod(read_values)
 
-    def convert_mbcs(s):
-        dec = getattr(s, "decode", None)
+    def convert_mbcs(self):
+        dec = getattr(self, "decode", None)
         if dec is not None:
             try:
-                s = dec("mbcs")
+                self = dec("mbcs")
             except UnicodeError:
                 pass
-        return s
+        return self
 
     convert_mbcs = staticmethod(convert_mbcs)
 
@@ -145,7 +145,7 @@ def __init__(self, version):
         self.load_macros(version)
 
     def set_macro(self, macro, path, key):
-        self.macros["$(%s)" % macro] = Reg.get_value(path, key)
+        self.macros[f"$({macro})"] = Reg.get_value(path, key)
 
     def load_macros(self, version):
         self.set_macro("VCInstallDir", self.vsbase + r"\Setup\VC", "productdir")
@@ -175,7 +175,7 @@ def load_macros(self, version):
                 except RegError:
                     continue
                 key = RegEnumKey(h, 0)
-                d = Reg.get_value(base, r"{}\{}".format(p, key))
+                d = Reg.get_value(base, f"{p}\{key}")
                 self.macros["$(FrameworkVersion)"] = d["version"]
 
     def sub(self, s):
@@ -200,14 +200,8 @@ def get_build_version():
     if majorVersion >= 13:
         # v13 was skipped and should be v14
         majorVersion += 1
-    minorVersion = int(s[2:3]) / 10.0
-    # I don't think paths are affected by minor version in version 6
-    if majorVersion == 6:
-        minorVersion = 0
-    if majorVersion >= 6:
-        return majorVersion + minorVersion
-    # else we don't know what version of the compiler this is
-    return None
+    minorVersion = 0 if majorVersion == 6 else int(s[2:3]) / 10.0
+    return majorVersion + minorVersion if majorVersion >= 6 else None
 
 
 def normalize_and_reduce_paths(paths):
@@ -232,8 +226,7 @@ def removeDuplicates(variable):
     for i in oldList:
         if i not in newList:
             newList.append(i)
-    newVariable = os.pathsep.join(newList)
-    return newVariable
+    return os.pathsep.join(newList)
 
 
 def find_vcvarsall(version):
@@ -257,10 +250,10 @@ def find_vcvarsall(version):
             productdir = os.path.join(toolsdir, os.pardir, os.pardir, "VC")
             productdir = os.path.abspath(productdir)
             if not os.path.isdir(productdir):
-                log.debug("%s is not a valid directory" % productdir)
+                log.debug(f"{productdir} is not a valid directory")
                 return None
         else:
-            log.debug("Env var %s is not set or invalid" % toolskey)
+            log.debug(f"Env var {toolskey} is not set or invalid")
     if not productdir:
         log.debug("No productdir found")
         return None
@@ -281,7 +274,7 @@ def query_vcvarsall(version, arch="x86"):
         raise DistutilsPlatformError("Unable to find vcvarsall.bat")
     log.debug("Calling 'vcvarsall.bat %s' (version=%s)", arch, version)
     popen = subprocess.Popen(
-        '"{}" {} & set'.format(vcvarsall, arch),
+        f'"{vcvarsall}" {arch} & set',
         stdout=subprocess.PIPE,
         stderr=subprocess.PIPE,
     )
@@ -370,9 +363,7 @@ def initialize(self, plat_name=None):  # noqa: C901
         # sanity check for platforms to prevent obscure errors later.
         ok_plats = 'win32', 'win-amd64'
         if plat_name not in ok_plats:
-            raise DistutilsPlatformError(
-                "--plat-name must be one of {}".format(ok_plats)
-            )
+            raise DistutilsPlatformError(f"--plat-name must be one of {ok_plats}")
 
         if (
             "DISTUTILS_USE_SDK" in os.environ
@@ -396,9 +387,7 @@ def initialize(self, plat_name=None):  # noqa: C901
                 plat_spec = PLAT_TO_VCVARS[plat_name]
             else:
                 # cross compile from win32 -> some 64bit
-                plat_spec = (
-                    PLAT_TO_VCVARS[get_platform()] + '_' + PLAT_TO_VCVARS[plat_name]
-                )
+                plat_spec = f'{PLAT_TO_VCVARS[get_platform()]}_{PLAT_TO_VCVARS[plat_name]}'
 
             vc_env = query_vcvarsall(VERSION, plat_spec)
 
@@ -418,8 +407,8 @@ def initialize(self, plat_name=None):  # noqa: C901
             self.lib = self.find_exe("lib.exe")
             self.rc = self.find_exe("rc.exe")  # resource compiler
             self.mc = self.find_exe("mc.exe")  # message compiler
-            # self.set_path_env_var('lib')
-            # self.set_path_env_var('include')
+                # self.set_path_env_var('lib')
+                # self.set_path_env_var('include')
 
         # extend the MSVC path with the current path
         try:
@@ -477,12 +466,10 @@ def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
                 # Better to raise an exception instead of silently continuing
                 # and later complain about sources and targets having
                 # different lengths
-                raise CompileError("Don't know how to compile %s" % src_name)
+                raise CompileError(f"Don't know how to compile {src_name}")
             if strip_dir:
                 base = os.path.basename(base)
-            if ext in self._rc_extensions:
-                obj_names.append(os.path.join(output_dir, base + self.res_extension))
-            elif ext in self._mc_extensions:
+            if ext in self._rc_extensions or ext in self._mc_extensions:
                 obj_names.append(os.path.join(output_dir, base + self.res_extension))
             else:
                 obj_names.append(os.path.join(output_dir, base + self.obj_extension))
@@ -525,13 +512,13 @@ def compile(  # noqa: C901
                 src = os.path.abspath(src)
 
             if ext in self._c_extensions:
-                input_opt = "/Tc" + src
+                input_opt = f"/Tc{src}"
             elif ext in self._cpp_extensions:
-                input_opt = "/Tp" + src
+                input_opt = f"/Tp{src}"
             elif ext in self._rc_extensions:
                 # compile .RC to .RES file
                 input_opt = src
-                output_opt = "/fo" + obj
+                output_opt = f"/fo{obj}"
                 try:
                     self.spawn([self.rc] + pp_opts + [output_opt] + [input_opt])
                 except DistutilsExecError as msg:
@@ -555,20 +542,18 @@ def compile(  # noqa: C901
                     # first compile .MC to .RC and .H file
                     self.spawn([self.mc] + ['-h', h_dir, '-r', rc_dir] + [src])
                     base, _ = os.path.splitext(os.path.basename(src))
-                    rc_file = os.path.join(rc_dir, base + '.rc')
+                    rc_file = os.path.join(rc_dir, f'{base}.rc')
                     # then compile .RC to .RES file
-                    self.spawn([self.rc] + ["/fo" + obj] + [rc_file])
+                    self.spawn([self.rc] + [f"/fo{obj}"] + [rc_file])
 
                 except DistutilsExecError as msg:
                     raise CompileError(msg)
                 continue
             else:
                 # how to handle this file?
-                raise CompileError(
-                    "Don't know how to compile {} to {}".format(src, obj)
-                )
+                raise CompileError(f"Don't know how to compile {src} to {obj}")
 
-            output_opt = "/Fo" + obj
+            output_opt = f"/Fo{obj}"
             try:
                 self.spawn(
                     [self.cc]
@@ -591,9 +576,7 @@ def create_static_lib(
         output_filename = self.library_filename(output_libname, output_dir=output_dir)
 
         if self._need_link(objects, output_filename):
-            lib_args = objects + ['/OUT:' + output_filename]
-            if debug:
-                pass  # XXX what goes here?
+            lib_args = objects + [f'/OUT:{output_filename}']
             try:
                 self.spawn([self.lib] + lib_args)
             except DistutilsExecError as msg:
@@ -635,22 +618,16 @@ def link(  # noqa: C901
 
         if self._need_link(objects, output_filename):
             if target_desc == CCompiler.EXECUTABLE:
-                if debug:
-                    ldflags = self.ldflags_shared_debug[1:]
-                else:
-                    ldflags = self.ldflags_shared[1:]
+                ldflags = self.ldflags_shared_debug[1:] if debug else self.ldflags_shared[1:]
             else:
-                if debug:
-                    ldflags = self.ldflags_shared_debug
-                else:
-                    ldflags = self.ldflags_shared
-
-            export_opts = []
-            for sym in export_symbols or []:
-                export_opts.append("/EXPORT:" + sym)
-
+                ldflags = self.ldflags_shared_debug if debug else self.ldflags_shared
+            export_opts = [f"/EXPORT:{sym}" for sym in export_symbols or []]
             ld_args = (
-                ldflags + lib_opts + export_opts + objects + ['/OUT:' + output_filename]
+                ldflags
+                + lib_opts
+                + export_opts
+                + objects
+                + [f'/OUT:{output_filename}']
             )
 
             # The MSVC linker generates .lib and .exp files, which cannot be
@@ -664,7 +641,7 @@ def link(  # noqa: C901
                     os.path.basename(output_filename)
                 )
                 implib_file = os.path.join(build_temp, self.library_filename(dll_name))
-                ld_args.append('/IMPLIB:' + implib_file)
+                ld_args.append(f'/IMPLIB:{implib_file}')
 
             self.manifest_setup_ldargs(output_filename, build_temp, ld_args)
 
@@ -687,7 +664,7 @@ def link(  # noqa: C901
             mfinfo = self.manifest_get_embed_info(target_desc, ld_args)
             if mfinfo is not None:
                 mffilename, mfid = mfinfo
-                out_arg = '-outputresource:{};{}'.format(output_filename, mfid)
+                out_arg = f'-outputresource:{output_filename};{mfid}'
                 try:
                     self.spawn(['mt.exe', '-nologo', '-manifest', mffilename, out_arg])
                 except DistutilsExecError as msg:
@@ -703,9 +680,9 @@ def manifest_setup_ldargs(self, output_filename, build_temp, ld_args):
         # Ask the linker to generate the manifest in the temp dir, so
         # we can check it, and possibly embed it, later.
         temp_manifest = os.path.join(
-            build_temp, os.path.basename(output_filename) + ".manifest"
+            build_temp, f"{os.path.basename(output_filename)}.manifest"
         )
-        ld_args.append('/MANIFESTFILE:' + temp_manifest)
+        ld_args.append(f'/MANIFESTFILE:{temp_manifest}')
 
     def manifest_get_embed_info(self, target_desc, ld_args):
         # If a manifest should be embedded, return a tuple of
@@ -727,9 +704,7 @@ def manifest_get_embed_info(self, target_desc, ld_args):
             # Extension modules try and avoid any manifest if possible.
             mfid = 2
             temp_manifest = self._remove_visual_c_ref(temp_manifest)
-        if temp_manifest is None:
-            return None
-        return temp_manifest, mfid
+        return None if temp_manifest is None else (temp_manifest, mfid)
 
     def _remove_visual_c_ref(self, manifest_file):
         try:
@@ -778,7 +753,7 @@ def _remove_visual_c_ref(self, manifest_file):
     # ccompiler.py.
 
     def library_dir_option(self, dir):
-        return "/LIBPATH:" + dir
+        return f"/LIBPATH:{dir}"
 
     def runtime_library_dir_option(self, dir):
         raise DistutilsPlatformError(
@@ -791,10 +766,7 @@ def library_option(self, lib):
     def find_library_file(self, dirs, lib, debug=0):
         # Prefer a debugging library if found (and requested), but deal
         # with it if we don't have one.
-        if debug:
-            try_names = [lib + "_d", lib]
-        else:
-            try_names = [lib]
+        try_names = [f"{lib}_d", lib] if debug else [lib]
         for dir in dirs:
             for name in try_names:
                 libfile = os.path.join(dir, self.library_filename(name))
diff --git a/setuptools/_distutils/msvccompiler.py b/setuptools/_distutils/msvccompiler.py
index c3823e257e..461fddd137 100644
--- a/setuptools/_distutils/msvccompiler.py
+++ b/setuptools/_distutils/msvccompiler.py
@@ -4,6 +4,7 @@
 for the Microsoft Visual Studio.
 """
 
+
 # Written by Perry Stoll
 # hacked by Robin Becker and Thomas Heller to do a better job of
 #   finding DevStudio (through the registry)
@@ -52,8 +53,6 @@
             "Make sure that Python modules winreg, "
             "win32api or win32con are installed."
         )
-        pass
-
 if _can_read_reg:
     HKEYS = (
         hkey_mod.HKEY_USERS,
@@ -128,9 +127,8 @@ def __init__(self, version):
 
     def set_macro(self, macro, path, key):
         for base in HKEYS:
-            d = read_values(base, path)
-            if d:
-                self.macros["$(%s)" % macro] = d[key]
+            if d := read_values(base, path):
+                self.macros[f"$({macro})"] = d[key]
                 break
 
     def load_macros(self, version):
@@ -159,7 +157,7 @@ def load_macros(self, version):
             except RegError:
                 continue
             key = RegEnumKey(h, 0)
-            d = read_values(base, r"{}\{}".format(p, key))
+            d = read_values(base, f"{p}\{key}")
             self.macros["$(FrameworkVersion)"] = d["version"]
 
     def sub(self, s):
@@ -184,14 +182,8 @@ def get_build_version():
     if majorVersion >= 13:
         # v13 was skipped and should be v14
         majorVersion += 1
-    minorVersion = int(s[2:3]) / 10.0
-    # I don't think paths are affected by minor version in version 6
-    if majorVersion == 6:
-        minorVersion = 0
-    if majorVersion >= 6:
-        return majorVersion + minorVersion
-    # else we don't know what version of the compiler this is
-    return None
+    minorVersion = 0 if majorVersion == 6 else int(s[2:3]) / 10.0
+    return majorVersion + minorVersion if majorVersion >= 6 else None
 
 
 def get_build_architecture():
@@ -263,10 +255,10 @@ def __init__(self, verbose=0, dry_run=0, force=0):
                 self.__macros = MacroExpander(self.__version)
             else:
                 self.__root = r"Software\Microsoft\Devstudio"
-            self.__product = "Visual Studio version %s" % self.__version
+            self.__product = f"Visual Studio version {self.__version}"
         else:
             # Win64. Assume this was built with the platform SDK
-            self.__product = "Microsoft SDK compiler %s" % (self.__version + 6)
+            self.__product = f"Microsoft SDK compiler {self.__version + 6}"
 
         self.initialized = False
 
@@ -367,12 +359,10 @@ def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
                 # Better to raise an exception instead of silently continuing
                 # and later complain about sources and targets having
                 # different lengths
-                raise CompileError("Don't know how to compile %s" % src_name)
+                raise CompileError(f"Don't know how to compile {src_name}")
             if strip_dir:
                 base = os.path.basename(base)
-            if ext in self._rc_extensions:
-                obj_names.append(os.path.join(output_dir, base + self.res_extension))
-            elif ext in self._mc_extensions:
+            if ext in self._rc_extensions or ext in self._mc_extensions:
                 obj_names.append(os.path.join(output_dir, base + self.res_extension))
             else:
                 obj_names.append(os.path.join(output_dir, base + self.obj_extension))
@@ -415,13 +405,13 @@ def compile(  # noqa: C901
                 src = os.path.abspath(src)
 
             if ext in self._c_extensions:
-                input_opt = "/Tc" + src
+                input_opt = f"/Tc{src}"
             elif ext in self._cpp_extensions:
-                input_opt = "/Tp" + src
+                input_opt = f"/Tp{src}"
             elif ext in self._rc_extensions:
                 # compile .RC to .RES file
                 input_opt = src
-                output_opt = "/fo" + obj
+                output_opt = f"/fo{obj}"
                 try:
                     self.spawn([self.rc] + pp_opts + [output_opt] + [input_opt])
                 except DistutilsExecError as msg:
@@ -445,20 +435,18 @@ def compile(  # noqa: C901
                     # first compile .MC to .RC and .H file
                     self.spawn([self.mc] + ['-h', h_dir, '-r', rc_dir] + [src])
                     base, _ = os.path.splitext(os.path.basename(src))
-                    rc_file = os.path.join(rc_dir, base + '.rc')
+                    rc_file = os.path.join(rc_dir, f'{base}.rc')
                     # then compile .RC to .RES file
-                    self.spawn([self.rc] + ["/fo" + obj] + [rc_file])
+                    self.spawn([self.rc] + [f"/fo{obj}"] + [rc_file])
 
                 except DistutilsExecError as msg:
                     raise CompileError(msg)
                 continue
             else:
                 # how to handle this file?
-                raise CompileError(
-                    "Don't know how to compile {} to {}".format(src, obj)
-                )
+                raise CompileError(f"Don't know how to compile {src} to {obj}")
 
-            output_opt = "/Fo" + obj
+            output_opt = f"/Fo{obj}"
             try:
                 self.spawn(
                     [self.cc]
@@ -481,9 +469,7 @@ def create_static_lib(
         output_filename = self.library_filename(output_libname, output_dir=output_dir)
 
         if self._need_link(objects, output_filename):
-            lib_args = objects + ['/OUT:' + output_filename]
-            if debug:
-                pass  # XXX what goes here?
+            lib_args = objects + [f'/OUT:{output_filename}']
             try:
                 self.spawn([self.lib] + lib_args)
             except DistutilsExecError as msg:
@@ -525,22 +511,16 @@ def link(  # noqa: C901
 
         if self._need_link(objects, output_filename):
             if target_desc == CCompiler.EXECUTABLE:
-                if debug:
-                    ldflags = self.ldflags_shared_debug[1:]
-                else:
-                    ldflags = self.ldflags_shared[1:]
+                ldflags = self.ldflags_shared_debug[1:] if debug else self.ldflags_shared[1:]
             else:
-                if debug:
-                    ldflags = self.ldflags_shared_debug
-                else:
-                    ldflags = self.ldflags_shared
-
-            export_opts = []
-            for sym in export_symbols or []:
-                export_opts.append("/EXPORT:" + sym)
-
+                ldflags = self.ldflags_shared_debug if debug else self.ldflags_shared
+            export_opts = [f"/EXPORT:{sym}" for sym in export_symbols or []]
             ld_args = (
-                ldflags + lib_opts + export_opts + objects + ['/OUT:' + output_filename]
+                ldflags
+                + lib_opts
+                + export_opts
+                + objects
+                + [f'/OUT:{output_filename}']
             )
 
             # The MSVC linker generates .lib and .exp files, which cannot be
@@ -555,7 +535,7 @@ def link(  # noqa: C901
                 implib_file = os.path.join(
                     os.path.dirname(objects[0]), self.library_filename(dll_name)
                 )
-                ld_args.append('/IMPLIB:' + implib_file)
+                ld_args.append(f'/IMPLIB:{implib_file}')
 
             if extra_preargs:
                 ld_args[:0] = extra_preargs
@@ -576,7 +556,7 @@ def link(  # noqa: C901
     # ccompiler.py.
 
     def library_dir_option(self, dir):
-        return "/LIBPATH:" + dir
+        return f"/LIBPATH:{dir}"
 
     def runtime_library_dir_option(self, dir):
         raise DistutilsPlatformError(
@@ -589,10 +569,7 @@ def library_option(self, lib):
     def find_library_file(self, dirs, lib, debug=0):
         # Prefer a debugging library if found (and requested), but deal
         # with it if we don't have one.
-        if debug:
-            try_names = [lib + "_d", lib]
-        else:
-            try_names = [lib]
+        try_names = [f"{lib}_d", lib] if debug else [lib]
         for dir in dirs:
             for name in try_names:
                 libfile = os.path.join(dir, self.library_filename(name))
@@ -635,7 +612,7 @@ def get_msvc_paths(self, path, platform='x86'):
         if not _can_read_reg:
             return []
 
-        path = path + " dirs"
+        path = f"{path} dirs"
         if self.__version >= 7:
             key = r"{}\{:0.1f}\VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories".format(
                 self.__root,
@@ -648,8 +625,7 @@ def get_msvc_paths(self, path, platform='x86'):
             )
 
         for base in HKEYS:
-            d = read_values(base, key)
-            if d:
+            if d := read_values(base, key):
                 if self.__version >= 7:
                     return self.__macros.sub(d[path]).split(";")
                 else:
diff --git a/setuptools/_distutils/py38compat.py b/setuptools/_distutils/py38compat.py
index 59224e71e5..ab12119fa5 100644
--- a/setuptools/_distutils/py38compat.py
+++ b/setuptools/_distutils/py38compat.py
@@ -5,4 +5,4 @@ def aix_platform(osname, version, release):
         return _aix_support.aix_platform()
     except ImportError:
         pass
-    return "{}-{}.{}".format(osname, version, release)
+    return f"{osname}-{version}.{release}"
diff --git a/setuptools/_distutils/spawn.py b/setuptools/_distutils/spawn.py
index afefe525ef..8379cb3584 100644
--- a/setuptools/_distutils/spawn.py
+++ b/setuptools/_distutils/spawn.py
@@ -15,7 +15,7 @@
 from ._log import log
 
 
-def spawn(cmd, search_path=1, verbose=0, dry_run=0, env=None):  # noqa: C901
+def spawn(cmd, search_path=1, verbose=0, dry_run=0, env=None):    # noqa: C901
     """Run another program, specified as a command list 'cmd', in a new process.
 
     'cmd' is just the argument list for the new process, ie.
@@ -49,8 +49,7 @@ def spawn(cmd, search_path=1, verbose=0, dry_run=0, env=None):  # noqa: C901
     if sys.platform == 'darwin':
         from distutils.util import MACOSX_VERSION_VAR, get_macosx_target_ver
 
-        macosx_target_ver = get_macosx_target_ver()
-        if macosx_target_ver:
+        if macosx_target_ver := get_macosx_target_ver():
             env[MACOSX_VERSION_VAR] = macosx_target_ver
 
     try:
@@ -80,22 +79,22 @@ def find_executable(executable, path=None):
     """
     _, ext = os.path.splitext(executable)
     if (sys.platform == 'win32') and (ext != '.exe'):
-        executable = executable + '.exe'
+        executable = f'{executable}.exe'
 
     if os.path.isfile(executable):
         return executable
 
     if path is None:
         path = os.environ.get('PATH', None)
-        if path is None:
-            try:
-                path = os.confstr("CS_PATH")
-            except (AttributeError, ValueError):
-                # os.confstr() or CS_PATH is not available
-                path = os.defpath
-        # bpo-35755: Don't use os.defpath if the PATH environment variable is
-        # set to an empty string
+            # bpo-35755: Don't use os.defpath if the PATH environment variable is
+            # set to an empty string
 
+    if path is None:
+        try:
+            path = os.confstr("CS_PATH")
+        except (AttributeError, ValueError):
+            # os.confstr() or CS_PATH is not available
+            path = os.defpath
     # PATH='' doesn't match, whereas PATH=':' looks in the current directory
     if not path:
         return None
diff --git a/setuptools/_distutils/sysconfig.py b/setuptools/_distutils/sysconfig.py
index a40a7231b3..ffc09f0a74 100644
--- a/setuptools/_distutils/sysconfig.py
+++ b/setuptools/_distutils/sysconfig.py
@@ -9,6 +9,7 @@
 Email:        <fdrake@acm.org>
 """
 
+
 import os
 import re
 import sys
@@ -32,13 +33,12 @@
 # set for cross builds
 if "_PYTHON_PROJECT_BASE" in os.environ:
     project_base = os.path.abspath(os.environ["_PYTHON_PROJECT_BASE"])
+elif sys.executable:
+    project_base = os.path.dirname(os.path.abspath(sys.executable))
 else:
-    if sys.executable:
-        project_base = os.path.dirname(os.path.abspath(sys.executable))
-    else:
-        # sys.executable can be empty if argv[0] has been changed and Python is
-        # unable to retrieve the real program name
-        project_base = os.getcwd()
+    # sys.executable can be empty if argv[0] has been changed and Python is
+    # unable to retrieve the real program name
+    project_base = os.getcwd()
 
 
 def _is_python_source_dir(d):
@@ -207,10 +207,7 @@ def _get_python_inc_nt(prefix, spec_prefix, plat_specific):
 
 # allow this behavior to be monkey-patched. Ref pypa/distutils#2.
 def _posix_lib(standard_lib, libpython, early_prefix, prefix):
-    if standard_lib:
-        return libpython
-    else:
-        return os.path.join(libpython, "site-packages")
+    return libpython if standard_lib else os.path.join(libpython, "site-packages")
 
 
 def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
@@ -267,108 +264,106 @@ def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
         )
 
 
-def customize_compiler(compiler):  # noqa: C901
+def customize_compiler(compiler):    # noqa: C901
     """Do any platform-specific customization of a CCompiler instance.
 
     Mainly needed on Unix, so we can plug in the information that
     varies across Unices and is stored in Python's Makefile.
     """
-    if compiler.compiler_type == "unix":
-        if sys.platform == "darwin":
-            # Perform first-time customization of compiler-related
-            # config vars on OS X now that we know we need a compiler.
-            # This is primarily to support Pythons from binary
-            # installers.  The kind and paths to build tools on
-            # the user system may vary significantly from the system
-            # that Python itself was built on.  Also the user OS
-            # version and build tools may not support the same set
-            # of CPU architectures for universal builds.
-            global _config_vars
-            # Use get_config_var() to ensure _config_vars is initialized.
-            if not get_config_var('CUSTOMIZED_OSX_COMPILER'):
-                import _osx_support
-
-                _osx_support.customize_compiler(_config_vars)
-                _config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True'
-
-        (
-            cc,
-            cxx,
-            cflags,
-            ccshared,
-            ldshared,
-            shlib_suffix,
-            ar,
-            ar_flags,
-        ) = get_config_vars(
-            'CC',
-            'CXX',
-            'CFLAGS',
-            'CCSHARED',
-            'LDSHARED',
-            'SHLIB_SUFFIX',
-            'AR',
-            'ARFLAGS',
-        )
+    if compiler.compiler_type != "unix":
+        return
+    if sys.platform == "darwin":
+        # Perform first-time customization of compiler-related
+        # config vars on OS X now that we know we need a compiler.
+        # This is primarily to support Pythons from binary
+        # installers.  The kind and paths to build tools on
+        # the user system may vary significantly from the system
+        # that Python itself was built on.  Also the user OS
+        # version and build tools may not support the same set
+        # of CPU architectures for universal builds.
+        global _config_vars
+        # Use get_config_var() to ensure _config_vars is initialized.
+        if not get_config_var('CUSTOMIZED_OSX_COMPILER'):
+            import _osx_support
+
+            _osx_support.customize_compiler(_config_vars)
+            _config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True'
+
+    (
+        cc,
+        cxx,
+        cflags,
+        ccshared,
+        ldshared,
+        shlib_suffix,
+        ar,
+        ar_flags,
+    ) = get_config_vars(
+        'CC',
+        'CXX',
+        'CFLAGS',
+        'CCSHARED',
+        'LDSHARED',
+        'SHLIB_SUFFIX',
+        'AR',
+        'ARFLAGS',
+    )
 
-        if 'CC' in os.environ:
-            newcc = os.environ['CC']
-            if 'LDSHARED' not in os.environ and ldshared.startswith(cc):
-                # If CC is overridden, use that as the default
-                #       command for LDSHARED as well
-                ldshared = newcc + ldshared[len(cc) :]
-            cc = newcc
-        if 'CXX' in os.environ:
-            cxx = os.environ['CXX']
-        if 'LDSHARED' in os.environ:
-            ldshared = os.environ['LDSHARED']
-        if 'CPP' in os.environ:
-            cpp = os.environ['CPP']
-        else:
-            cpp = cc + " -E"  # not always
-        if 'LDFLAGS' in os.environ:
-            ldshared = ldshared + ' ' + os.environ['LDFLAGS']
-        if 'CFLAGS' in os.environ:
-            cflags = cflags + ' ' + os.environ['CFLAGS']
-            ldshared = ldshared + ' ' + os.environ['CFLAGS']
-        if 'CPPFLAGS' in os.environ:
-            cpp = cpp + ' ' + os.environ['CPPFLAGS']
-            cflags = cflags + ' ' + os.environ['CPPFLAGS']
-            ldshared = ldshared + ' ' + os.environ['CPPFLAGS']
-        if 'AR' in os.environ:
-            ar = os.environ['AR']
-        if 'ARFLAGS' in os.environ:
-            archiver = ar + ' ' + os.environ['ARFLAGS']
-        else:
-            archiver = ar + ' ' + ar_flags
-
-        cc_cmd = cc + ' ' + cflags
-        compiler.set_executables(
-            preprocessor=cpp,
-            compiler=cc_cmd,
-            compiler_so=cc_cmd + ' ' + ccshared,
-            compiler_cxx=cxx,
-            linker_so=ldshared,
-            linker_exe=cc,
-            archiver=archiver,
-        )
+    if 'CC' in os.environ:
+        newcc = os.environ['CC']
+        if 'LDSHARED' not in os.environ and ldshared.startswith(cc):
+            # If CC is overridden, use that as the default
+            #       command for LDSHARED as well
+            ldshared = newcc + ldshared[len(cc) :]
+        cc = newcc
+    if 'CXX' in os.environ:
+        cxx = os.environ['CXX']
+    if 'LDSHARED' in os.environ:
+        ldshared = os.environ['LDSHARED']
+    cpp = os.environ.get('CPP', f"{cc} -E")
+    if 'LDFLAGS' in os.environ:
+        ldshared = f'{ldshared} ' + os.environ['LDFLAGS']
+    if 'CFLAGS' in os.environ:
+        cflags = f'{cflags} ' + os.environ['CFLAGS']
+        ldshared = f'{ldshared} ' + os.environ['CFLAGS']
+    if 'CPPFLAGS' in os.environ:
+        cpp = f'{cpp} ' + os.environ['CPPFLAGS']
+        cflags = f'{cflags} ' + os.environ['CPPFLAGS']
+        ldshared = f'{ldshared} ' + os.environ['CPPFLAGS']
+    if 'AR' in os.environ:
+        ar = os.environ['AR']
+    if 'ARFLAGS' in os.environ:
+        archiver = f'{ar} ' + os.environ['ARFLAGS']
+    else:
+        archiver = f'{ar} {ar_flags}'
+
+    cc_cmd = f'{cc} {cflags}'
+    compiler.set_executables(
+        preprocessor=cpp,
+        compiler=cc_cmd,
+        compiler_so=f'{cc_cmd} {ccshared}',
+        compiler_cxx=cxx,
+        linker_so=ldshared,
+        linker_exe=cc,
+        archiver=archiver,
+    )
 
-        if 'RANLIB' in os.environ and compiler.executables.get('ranlib', None):
-            compiler.set_executables(ranlib=os.environ['RANLIB'])
+    if 'RANLIB' in os.environ and compiler.executables.get('ranlib', None):
+        compiler.set_executables(ranlib=os.environ['RANLIB'])
 
-        compiler.shared_lib_extension = shlib_suffix
+    compiler.shared_lib_extension = shlib_suffix
 
 
 def get_config_h_filename():
     """Return full pathname of installed pyconfig.h file."""
-    if python_build:
-        if os.name == "nt":
-            inc_dir = os.path.join(_sys_home or project_base, "PC")
-        else:
-            inc_dir = _sys_home or project_base
-        return os.path.join(inc_dir, 'pyconfig.h')
-    else:
+    if not python_build:
         return sysconfig.get_config_h_filename()
+    inc_dir = (
+        os.path.join(_sys_home or project_base, "PC")
+        if os.name == "nt"
+        else _sys_home or project_base
+    )
+    return os.path.join(inc_dir, 'pyconfig.h')
 
 
 def get_makefile_filename():
@@ -393,7 +388,7 @@ def parse_config_h(fp, g=None):
 _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")
 
 
-def parse_makefile(fn, g=None):  # noqa: C901
+def parse_makefile(fn, g=None):    # noqa: C901
     """Parse a Makefile-style file.
 
     A dictionary containing name/value pairs is returned.  If an
@@ -415,8 +410,7 @@ def parse_makefile(fn, g=None):  # noqa: C901
         line = fp.readline()
         if line is None:  # eof
             break
-        m = _variable_rx.match(line)
-        if m:
+        if m := _variable_rx.match(line):
             n, v = m.group(1, 2)
             v = v.strip()
             # `$$' is a literal `$' in make
@@ -443,8 +437,7 @@ def parse_makefile(fn, g=None):  # noqa: C901
     while notdone:
         for name in list(notdone):
             value = notdone[name]
-            m = _findvar1_rx.search(value) or _findvar2_rx.search(value)
-            if m:
+            if m := _findvar1_rx.search(value) or _findvar2_rx.search(value):
                 n = m.group(1)
                 found = True
                 if n in done:
@@ -460,11 +453,11 @@ def parse_makefile(fn, g=None):  # noqa: C901
                     if name.startswith('PY_') and name[3:] in renamed_variables:
                         item = ""
 
-                    elif 'PY_' + n in notdone:
+                    elif f'PY_{n}' in notdone:
                         found = False
 
                     else:
-                        item = str(done['PY_' + n])
+                        item = str(done[f'PY_{n}'])
                 else:
                     done[n] = item = ""
                 if found:
@@ -517,10 +510,9 @@ def expand_makefile_vars(s, vars):
     # according to make's variable expansion semantics.
 
     while True:
-        m = _findvar1_rx.search(s) or _findvar2_rx.search(s)
-        if m:
+        if m := _findvar1_rx.search(s) or _findvar2_rx.search(s):
             (beg, end) = m.span()
-            s = s[0:beg] + vars.get(m.group(1)) + s[end:]
+            s = s[:beg] + vars.get(m.group(1)) + s[end:]
         else:
             break
     return s
diff --git a/setuptools/_distutils/tests/py38compat.py b/setuptools/_distutils/tests/py38compat.py
index 211d3a6c50..819fcf4935 100644
--- a/setuptools/_distutils/tests/py38compat.py
+++ b/setuptools/_distutils/tests/py38compat.py
@@ -12,7 +12,7 @@
 
 try:
     from test.support.warnings_helper import check_warnings
-except (ModuleNotFoundError, ImportError):
+except ImportError:
     from test.support import check_warnings
 
 
@@ -24,7 +24,7 @@
         skip_unless_symlink,
         temp_dir,
     )
-except (ModuleNotFoundError, ImportError):
+except ImportError:
     from test.support import (
         rmtree,
         EnvironmentVarGuard,
@@ -39,7 +39,7 @@
         DirsOnSysPath,
         CleanImport,
     )
-except (ModuleNotFoundError, ImportError):
+except ImportError:
     from test.support import (
         DirsOnSysPath,
         CleanImport,
diff --git a/setuptools/_distutils/tests/support.py b/setuptools/_distutils/tests/support.py
index fd4b11bf75..d6a42c9588 100644
--- a/setuptools/_distutils/tests/support.py
+++ b/setuptools/_distutils/tests/support.py
@@ -112,12 +112,11 @@ def fixup_build_ext(cmd):
         runshared = sysconfig.get_config_var('RUNSHARED')
         if runshared is None:
             cmd.library_dirs = ['.']
+        elif sys.platform == 'darwin':
+            cmd.library_dirs = []
         else:
-            if sys.platform == 'darwin':
-                cmd.library_dirs = []
-            else:
-                name, equals, value = runshared.partition('=')
-                cmd.library_dirs = [d for d in value.split(os.pathsep) if d]
+            name, equals, value = runshared.partition('=')
+            cmd.library_dirs = [d for d in value.split(os.pathsep) if d]
 
 
 def combine_markers(cls):
diff --git a/setuptools/_distutils/tests/test_archive_util.py b/setuptools/_distutils/tests/test_archive_util.py
index 89c415d761..845583acea 100644
--- a/setuptools/_distutils/tests/test_archive_util.py
+++ b/setuptools/_distutils/tests/test_archive_util.py
@@ -148,7 +148,7 @@ def test_tarfile_vs_tar(self):
             os.chdir(old_dir)
 
         # check if the compressed tarball was created
-        tarball = base_name + '.tar.gz'
+        tarball = f'{base_name}.tar.gz'
         assert os.path.exists(tarball)
 
         # now create another tarball using `tar`
@@ -176,7 +176,7 @@ def test_tarfile_vs_tar(self):
             make_tarball(base_name, 'dist', compress=None)
         finally:
             os.chdir(old_dir)
-        tarball = base_name + '.tar'
+        tarball = f'{base_name}.tar'
         assert os.path.exists(tarball)
 
         # now for a dry_run
@@ -187,7 +187,7 @@ def test_tarfile_vs_tar(self):
             make_tarball(base_name, 'dist', compress=None, dry_run=True)
         finally:
             os.chdir(old_dir)
-        tarball = base_name + '.tar'
+        tarball = f'{base_name}.tar'
         assert os.path.exists(tarball)
 
     @pytest.mark.skipif("not find_executable('compress')")
@@ -204,7 +204,7 @@ def test_compress_deprecated(self):
                 make_tarball(base_name, 'dist', compress='compress')
         finally:
             os.chdir(old_dir)
-        tarball = base_name + '.tar.Z'
+        tarball = f'{base_name}.tar.Z'
         assert os.path.exists(tarball)
         assert len(w.warnings) == 1
 
@@ -231,7 +231,7 @@ def test_make_zipfile(self):
             make_zipfile(base_name, 'dist')
 
         # check if the compressed tarball was created
-        tarball = base_name + '.zip'
+        tarball = f'{base_name}.zip'
         assert os.path.exists(tarball)
         with zipfile.ZipFile(tarball) as zf:
             assert sorted(zf.namelist()) == self._zip_created_files
@@ -256,7 +256,7 @@ def fake_zipfile(*a, **kw):
         with path.Path(tmpdir):
             make_zipfile(base_name, 'dist')
 
-        tarball = base_name + '.zip'
+        tarball = f'{base_name}.zip'
         assert called == [((tarball, "w"), {'compression': zipfile.ZIP_STORED})]
         assert os.path.exists(tarball)
         with zipfile.ZipFile(tarball) as zf:
diff --git a/setuptools/_distutils/tests/test_bdist.py b/setuptools/_distutils/tests/test_bdist.py
index af330a06e7..d85f79ad38 100644
--- a/setuptools/_distutils/tests/test_bdist.py
+++ b/setuptools/_distutils/tests/test_bdist.py
@@ -43,4 +43,4 @@ def test_skip_build(self):
             if getattr(subcmd, '_unsupported', False):
                 # command is not supported on this build
                 continue
-            assert subcmd.skip_build, '%s should take --skip-build from bdist' % name
+            assert subcmd.skip_build, f'{name} should take --skip-build from bdist'
diff --git a/setuptools/_distutils/tests/test_bdist_dumb.py b/setuptools/_distutils/tests/test_bdist_dumb.py
index 6fb50c4b8e..7c73b8326e 100644
--- a/setuptools/_distutils/tests/test_bdist_dumb.py
+++ b/setuptools/_distutils/tests/test_bdist_dumb.py
@@ -63,7 +63,7 @@ def test_simple_built(self):
 
         # see what we have
         dist_created = os.listdir(os.path.join(pkg_dir, 'dist'))
-        base = "{}.{}.zip".format(dist.get_fullname(), cmd.plat_name)
+        base = f"{dist.get_fullname()}.{cmd.plat_name}.zip"
 
         assert dist_created == [base]
 
@@ -77,5 +77,5 @@ def test_simple_built(self):
         contents = sorted(filter(None, map(os.path.basename, contents)))
         wanted = ['foo-0.1-py%s.%s.egg-info' % sys.version_info[:2], 'foo.py']
         if not sys.dont_write_bytecode:
-            wanted.append('foo.%s.pyc' % sys.implementation.cache_tag)
+            wanted.append(f'foo.{sys.implementation.cache_tag}.pyc')
         assert contents == sorted(wanted)
diff --git a/setuptools/_distutils/tests/test_build.py b/setuptools/_distutils/tests/test_build.py
index 66d8af50ac..7e86726b72 100644
--- a/setuptools/_distutils/tests/test_build.py
+++ b/setuptools/_distutils/tests/test_build.py
@@ -23,18 +23,18 @@ def test_finalize_options(self):
         # build_platlib is 'build/lib.platform-cache_tag[-pydebug]'
         # examples:
         #   build/lib.macosx-10.3-i386-cpython39
-        plat_spec = '.{}-{}'.format(cmd.plat_name, sys.implementation.cache_tag)
+        plat_spec = f'.{cmd.plat_name}-{sys.implementation.cache_tag}'
         if hasattr(sys, 'gettotalrefcount'):
             assert cmd.build_platlib.endswith('-pydebug')
             plat_spec += '-pydebug'
-        wanted = os.path.join(cmd.build_base, 'lib' + plat_spec)
+        wanted = os.path.join(cmd.build_base, f'lib{plat_spec}')
         assert cmd.build_platlib == wanted
 
         # by default, build_lib = build_purelib
         assert cmd.build_lib == cmd.build_purelib
 
         # build_temp is build/temp.<plat>
-        wanted = os.path.join(cmd.build_base, 'temp' + plat_spec)
+        wanted = os.path.join(cmd.build_base, f'temp{plat_spec}')
         assert cmd.build_temp == wanted
 
         # build_scripts is build/scripts-x.x
diff --git a/setuptools/_distutils/tests/test_build_clib.py b/setuptools/_distutils/tests/test_build_clib.py
index b5a392a85f..0930a454e3 100644
--- a/setuptools/_distutils/tests/test_build_clib.py
+++ b/setuptools/_distutils/tests/test_build_clib.py
@@ -74,12 +74,15 @@ def test_build_libraries(self):
         pkg_dir, dist = self.create_dist()
         cmd = build_clib(dist)
 
+
+
         class FakeCompiler:
-            def compile(*args, **kw):
+            def compile(self, **kw):
                 pass
 
             create_static_lib = compile
 
+
         cmd.compiler = FakeCompiler()
 
         # build_libraries is also doing a bit of typo checking
@@ -87,7 +90,7 @@ def compile(*args, **kw):
         with pytest.raises(DistutilsSetupError):
             cmd.build_libraries(lib)
 
-        lib = [('name', {'sources': list()})]
+        lib = [('name', {'sources': []})]
         cmd.build_libraries(lib)
 
         lib = [('name', {'sources': tuple()})]
diff --git a/setuptools/_distutils/tests/test_build_ext.py b/setuptools/_distutils/tests/test_build_ext.py
index cb61ad7455..4574a825a8 100644
--- a/setuptools/_distutils/tests/test_build_ext.py
+++ b/setuptools/_distutils/tests/test_build_ext.py
@@ -221,7 +221,7 @@ def test_finalize_options(self):
         # make sure cmd.library_dirs is turned into a list
         # if it's a string
         cmd = self.build_ext(dist)
-        cmd.library_dirs = 'my_lib_dir%sother_lib_dir' % os.pathsep
+        cmd.library_dirs = f'my_lib_dir{os.pathsep}other_lib_dir'
         cmd.finalize_options()
         assert 'my_lib_dir' in cmd.library_dirs
         assert 'other_lib_dir' in cmd.library_dirs
@@ -229,7 +229,7 @@ def test_finalize_options(self):
         # make sure rpath is turned into a list
         # if it's a string
         cmd = self.build_ext(dist)
-        cmd.rpath = 'one%stwo' % os.pathsep
+        cmd.rpath = f'one{os.pathsep}two'
         cmd.finalize_options()
         assert cmd.rpath == ['one', 'two']
 
@@ -433,14 +433,14 @@ def test_ext_fullpath(self):
         cmd.distribution.package_dir = {'': 'src'}
         cmd.distribution.packages = ['lxml', 'lxml.html']
         curdir = os.getcwd()
-        wanted = os.path.join(curdir, 'src', 'lxml', 'etree' + ext)
+        wanted = os.path.join(curdir, 'src', 'lxml', f'etree{ext}')
         path = cmd.get_ext_fullpath('lxml.etree')
         assert wanted == path
 
         # building lxml.etree not inplace
         cmd.inplace = 0
         cmd.build_lib = os.path.join(curdir, 'tmpdir')
-        wanted = os.path.join(curdir, 'tmpdir', 'lxml', 'etree' + ext)
+        wanted = os.path.join(curdir, 'tmpdir', 'lxml', f'etree{ext}')
         path = cmd.get_ext_fullpath('lxml.etree')
         assert wanted == path
 
@@ -449,13 +449,13 @@ def test_ext_fullpath(self):
         build_py.package_dir = {}
         cmd.distribution.packages = ['twisted', 'twisted.runner.portmap']
         path = cmd.get_ext_fullpath('twisted.runner.portmap')
-        wanted = os.path.join(curdir, 'tmpdir', 'twisted', 'runner', 'portmap' + ext)
+        wanted = os.path.join(curdir, 'tmpdir', 'twisted', 'runner', f'portmap{ext}')
         assert wanted == path
 
         # building twisted.runner.portmap inplace
         cmd.inplace = 1
         path = cmd.get_ext_fullpath('twisted.runner.portmap')
-        wanted = os.path.join(curdir, 'twisted', 'runner', 'portmap' + ext)
+        wanted = os.path.join(curdir, 'twisted', 'runner', f'portmap{ext}')
         assert wanted == path
 
     @pytest.mark.skipif('platform.system() != "Darwin"')
@@ -477,11 +477,7 @@ def test_deployment_target_too_low(self):
     @pytest.mark.skipif('platform.system() != "Darwin"')
     @pytest.mark.usefixtures('save_env')
     def test_deployment_target_higher_ok(self):
-        # Issue 9516: Test that an extension module can be compiled with a
-        # deployment target higher than that of the interpreter: the ext
-        # module may depend on some newer OS feature.
-        deptarget = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
-        if deptarget:
+        if deptarget := sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET'):
             # increment the minor version number (i.e. 10.6 -> 10.7)
             deptarget = [int(x) for x in deptarget.split('.')]
             deptarget[-1] += 1
@@ -517,7 +513,7 @@ def _try_compile_deployment_target(self, operator, target):
 
         # get the deployment target that the interpreter was built with
         target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
-        target = tuple(map(int, target.split('.')[0:2]))
+        target = tuple(map(int, target.split('.')[:2]))
         # format the target value as defined in the Apple
         # Availability Macros.  We can't use the macro names since
         # at least one value we test with will not exist yet.
@@ -526,15 +522,9 @@ def _try_compile_deployment_target(self, operator, target):
             target = '%02d%01d0' % target
         else:
             # for 10.10 and beyond -> "10nn00"
-            if len(target) >= 2:
-                target = '%02d%02d00' % target
-            else:
-                # 11 and later can have no minor version (11 instead of 11.0)
-                target = '%02d0000' % target
+            target = '%02d%02d00' % target if len(target) >= 2 else '%02d0000' % target
         deptarget_ext = Extension(
-            'deptarget',
-            [deptarget_c],
-            extra_compile_args=['-DTARGET={}'.format(target)],
+            'deptarget', [deptarget_c], extra_compile_args=[f'-DTARGET={target}']
         )
         dist = Distribution({'name': 'deptarget', 'ext_modules': [deptarget_ext]})
         dist.package_dir = self.tmp_dir
diff --git a/setuptools/_distutils/tests/test_build_py.py b/setuptools/_distutils/tests/test_build_py.py
index 3bef9d79ec..4f90aafa84 100644
--- a/setuptools/_distutils/tests/test_build_py.py
+++ b/setuptools/_distutils/tests/test_build_py.py
@@ -57,7 +57,7 @@ def test_package_data(self):
             assert not os.path.exists(pycache_dir)
         else:
             pyc_files = os.listdir(pycache_dir)
-            assert "__init__.%s.pyc" % sys.implementation.cache_tag in pyc_files
+            assert f"__init__.{sys.implementation.cache_tag}.pyc" in pyc_files
 
     def test_empty_package_dir(self):
         # See bugs #1668596/#1720897
@@ -100,7 +100,7 @@ def test_byte_compile(self):
         found = os.listdir(cmd.build_lib)
         assert sorted(found) == ['__pycache__', 'boiledeggs.py']
         found = os.listdir(os.path.join(cmd.build_lib, '__pycache__'))
-        assert found == ['boiledeggs.%s.pyc' % sys.implementation.cache_tag]
+        assert found == [f'boiledeggs.{sys.implementation.cache_tag}.pyc']
 
     @pytest.mark.skipif('sys.dont_write_bytecode')
     def test_byte_compile_optimized(self):
diff --git a/setuptools/_distutils/tests/test_build_scripts.py b/setuptools/_distutils/tests/test_build_scripts.py
index 1a5753c772..b2aefa5a80 100644
--- a/setuptools/_distutils/tests/test_build_scripts.py
+++ b/setuptools/_distutils/tests/test_build_scripts.py
@@ -46,8 +46,6 @@ def get_build_scripts_cmd(self, target, scripts):
         return build_scripts(dist)
 
     def write_sample_scripts(self, dir):
-        expected = []
-        expected.append("script1.py")
         self.write_script(
             dir,
             "script1.py",
@@ -57,19 +55,17 @@ def write_sample_scripts(self, dir):
                 "pass\n"
             ),
         )
-        expected.append("script2.py")
         self.write_script(
             dir,
             "script2.py",
             ("#!/usr/bin/python\n" "# bogus script w/ Python sh-bang\n" "pass\n"),
         )
-        expected.append("shell.sh")
         self.write_script(
             dir,
             "shell.sh",
             ("#!/bin/sh\n" "# bogus shell script w/ sh-bang\n" "exit 0\n"),
         )
-        return expected
+        return ["script1.py", "script2.py", "shell.sh"]
 
     def write_script(self, dir, name, text):
         f = open(os.path.join(dir, name), "w")
diff --git a/setuptools/_distutils/tests/test_check.py b/setuptools/_distutils/tests/test_check.py
index 6d240b8b2b..aad21fc2c8 100644
--- a/setuptools/_distutils/tests/test_check.py
+++ b/setuptools/_distutils/tests/test_check.py
@@ -84,7 +84,7 @@ def test_check_author_maintainer(self):
             # (the spec allows these fields to take the form "Name <email>")
             metadata = {
                 'url': 'xxx',
-                kind + '_email': 'Name <name@email.com>',
+                f'{kind}_email': 'Name <name@email.com>',
                 'name': 'xxx',
                 'version': 'xxx',
             }
@@ -92,13 +92,13 @@ def test_check_author_maintainer(self):
             assert cmd._warnings == 0
 
             # the check should not warn if only email is given
-            metadata[kind + '_email'] = 'name@email.com'
+            metadata[f'{kind}_email'] = 'name@email.com'
             cmd = self._run(metadata)
             assert cmd._warnings == 0
 
             # the check should not warn if only the name is given
             metadata[kind] = "Name"
-            del metadata[kind + '_email']
+            del metadata[f'{kind}_email']
             cmd = self._run(metadata)
             assert cmd._warnings == 0
 
diff --git a/setuptools/_distutils/tests/test_clean.py b/setuptools/_distutils/tests/test_clean.py
index 157b60a1e9..0b830e27c1 100644
--- a/setuptools/_distutils/tests/test_clean.py
+++ b/setuptools/_distutils/tests/test_clean.py
@@ -37,7 +37,7 @@ def test_simple_run(self):
 
         # make sure the files where removed
         for name, path in dirs:
-            assert not os.path.exists(path), '%s was not removed' % path
+            assert not os.path.exists(path), f'{path} was not removed'
 
         # let's run the command again (should spit warnings but succeed)
         cmd.all = 1
diff --git a/setuptools/_distutils/tests/test_config_cmd.py b/setuptools/_distutils/tests/test_config_cmd.py
index e72a7c5ff8..db6c79ff5b 100644
--- a/setuptools/_distutils/tests/test_config_cmd.py
+++ b/setuptools/_distutils/tests/test_config_cmd.py
@@ -24,7 +24,7 @@ def _info(self, msg, *args):
             self._logs.append(line)
 
     def test_dump_file(self):
-        this_file = os.path.splitext(__file__)[0] + '.py'
+        this_file = f'{os.path.splitext(__file__)[0]}.py'
         f = open(this_file)
         try:
             numlines = len(f.readlines())
@@ -60,9 +60,9 @@ def test_finalize_options(self):
         # on options
         pkg_dir, dist = self.create_dist()
         cmd = config(dist)
-        cmd.include_dirs = 'one%stwo' % os.pathsep
+        cmd.include_dirs = f'one{os.pathsep}two'
         cmd.libraries = 'one'
-        cmd.library_dirs = 'three%sfour' % os.pathsep
+        cmd.library_dirs = f'three{os.pathsep}four'
         cmd.ensure_finalized()
 
         assert cmd.include_dirs == ['one', 'two']
diff --git a/setuptools/_distutils/tests/test_dist.py b/setuptools/_distutils/tests/test_dist.py
index 30a6f9ff2e..3df5a0d9ce 100644
--- a/setuptools/_distutils/tests/test_dist.py
+++ b/setuptools/_distutils/tests/test_dist.py
@@ -149,7 +149,7 @@ def test_venv_install_options(self, tmp_path):
         with mock.patch.multiple(sys, prefix='/a', base_prefix='/b'):
             d = self.create_distribution([file])
 
-        for key in result_dict.keys():
+        for key in result_dict:
             assert key not in d.command_options.get('install', {})
 
     def test_command_packages_configfile(self, tmp_path, clear_argv):
@@ -202,7 +202,7 @@ def _warn(msg):
             }
         )
 
-        assert len(warns) == 0
+        assert not warns
         assert 'options' not in dir(dist)
 
     def test_finalize_options(self):
diff --git a/setuptools/_distutils/tests/test_file_util.py b/setuptools/_distutils/tests/test_file_util.py
index 9f44f91dfa..1c0cdcdd74 100644
--- a/setuptools/_distutils/tests/test_file_util.py
+++ b/setuptools/_distutils/tests/test_file_util.py
@@ -34,7 +34,7 @@ def test_move_file_verbosity(self, caplog):
         move_file(self.target, self.source, verbose=0)
 
         move_file(self.source, self.target, verbose=1)
-        wanted = ['moving {} -> {}'.format(self.source, self.target)]
+        wanted = [f'moving {self.source} -> {self.target}']
         assert caplog.messages == wanted
 
         # back to original state
@@ -44,7 +44,7 @@ def test_move_file_verbosity(self, caplog):
         # now the target is a dir
         os.mkdir(self.target_dir)
         move_file(self.source, self.target_dir, verbose=1)
-        wanted = ['moving {} -> {}'.format(self.source, self.target_dir)]
+        wanted = [f'moving {self.source} -> {self.target_dir}']
         assert caplog.messages == wanted
 
     def test_move_file_exception_unpacking_rename(self):
@@ -75,7 +75,7 @@ def test_copy_file_hard_link(self):
         try:
             os.link(self.source, self.target)
         except OSError as e:
-            self.skipTest('os.link: %s' % e)
+            self.skipTest(f'os.link: {e}')
         else:
             unlink(self.target)
         st = os.stat(self.source)
diff --git a/setuptools/_distutils/tests/test_install.py b/setuptools/_distutils/tests/test_install.py
index 3f525db42a..146705df32 100644
--- a/setuptools/_distutils/tests/test_install.py
+++ b/setuptools/_distutils/tests/test_install.py
@@ -206,7 +206,7 @@ def test_record(self):
         found = [os.path.basename(line) for line in content.splitlines()]
         expected = [
             'hello.py',
-            'hello.%s.pyc' % sys.implementation.cache_tag,
+            f'hello.{sys.implementation.cache_tag}.pyc',
             'sayhi',
             'UNKNOWN-0.0.0-py%s.%s.egg-info' % sys.version_info[:2],
         ]
diff --git a/setuptools/_distutils/tests/test_msvccompiler.py b/setuptools/_distutils/tests/test_msvccompiler.py
index f63537b8e5..6c07853486 100644
--- a/setuptools/_distutils/tests/test_msvccompiler.py
+++ b/setuptools/_distutils/tests/test_msvccompiler.py
@@ -87,7 +87,7 @@ def test_concurrent_safe(self):
         command = [sys.executable, '-c', inner_cmd]
 
         threads = [
-            CheckThread(target=compiler.spawn, args=[command]) for n in range(100)
+            CheckThread(target=compiler.spawn, args=[command]) for _ in range(100)
         ]
         for thread in threads:
             thread.start()
diff --git a/setuptools/_distutils/tests/test_sdist.py b/setuptools/_distutils/tests/test_sdist.py
index fdb768e73f..9c8cd58134 100644
--- a/setuptools/_distutils/tests/test_sdist.py
+++ b/setuptools/_distutils/tests/test_sdist.py
@@ -127,7 +127,7 @@ def test_prune_file_list(self):
             'somecode/',
             'somecode/__init__.py',
         ]
-        assert sorted(content) == ['fake-1.0/' + x for x in expected]
+        assert sorted(content) == [f'fake-1.0/{x}' for x in expected]
 
     @pytest.mark.usefixtures('needs_zlib')
     @pytest.mark.skipif("not find_executable('tar')")
@@ -239,7 +239,7 @@ def test_add_defaults(self):
             'somecode/doc.dat',
             'somecode/doc.txt',
         ]
-        assert sorted(content) == ['fake-1.0/' + x for x in expected]
+        assert sorted(content) == [f'fake-1.0/{x}' for x in expected]
 
         # checking the MANIFEST
         f = open(join(self.tmp_dir, 'MANIFEST'))
diff --git a/setuptools/_distutils/tests/test_spawn.py b/setuptools/_distutils/tests/test_spawn.py
index 08a34ee2b8..ee4b0f7de9 100644
--- a/setuptools/_distutils/tests/test_spawn.py
+++ b/setuptools/_distutils/tests/test_spawn.py
@@ -50,7 +50,7 @@ def test_find_executable(self, tmp_path):
         program_noeext = 'program'
         # Give the temporary program an ".exe" suffix for all.
         # It's needed on Windows and not harmful on other platforms.
-        program = program_noeext + ".exe"
+        program = f"{program_noeext}.exe"
 
         program_path = tmp_path / program
         program_path.write_text("")
@@ -73,7 +73,7 @@ def test_find_executable(self, tmp_path):
             assert rv == program
 
         # test non-existent program
-        dont_exist_program = "dontexist_" + program
+        dont_exist_program = f"dontexist_{program}"
         rv = find_executable(dont_exist_program, path=tmp_dir)
         assert rv is None
 
diff --git a/setuptools/_distutils/tests/test_sysconfig.py b/setuptools/_distutils/tests/test_sysconfig.py
index bfeaf9a6b9..27f6b911d6 100644
--- a/setuptools/_distutils/tests/test_sysconfig.py
+++ b/setuptools/_distutils/tests/test_sysconfig.py
@@ -257,7 +257,7 @@ def test_customize_compiler_before_get_config_vars(self, tmp_path):
             universal_newlines=True,
         )
         outs, errs = p.communicate()
-        assert 0 == p.returncode, "Subprocess failed: " + outs
+        assert 0 == p.returncode, f"Subprocess failed: {outs}"
 
     def test_parse_config_h(self):
         config_h = sysconfig.get_config_h_filename()
diff --git a/setuptools/_distutils/tests/test_unixccompiler.py b/setuptools/_distutils/tests/test_unixccompiler.py
index a018442459..f2e6c4fc7e 100644
--- a/setuptools/_distutils/tests/test_unixccompiler.py
+++ b/setuptools/_distutils/tests/test_unixccompiler.py
@@ -64,9 +64,7 @@ def test_runtime_libdir_option(self):  # noqa: C901
 
         def make_darwin_gcv(syscfg_macosx_ver):
             def gcv(var):
-                if var == darwin_ver_var:
-                    return syscfg_macosx_ver
-                return "xxx"
+                return syscfg_macosx_ver if var == darwin_ver_var else "xxx"
 
             return gcv
 
@@ -93,9 +91,7 @@ def do_darwin_test(syscfg_macosx_ver, env_macosx_ver, expected_flag):
             if expected_flag is not None:
                 assert self.cc.rpath_foo() == expected_flag, msg
             else:
-                with pytest.raises(
-                    DistutilsPlatformError, match=darwin_ver_var + r' mismatch'
-                ):
+                with pytest.raises(DistutilsPlatformError, match=f'{darwin_ver_var} mismatch'):
                     self.cc.rpath_foo()
 
             # Restore
@@ -222,9 +218,7 @@ def gcv(v):
             return 'gcc-4.2'
 
         def gcvs(*args, _orig=sysconfig.get_config_vars):
-            if args:
-                return list(map(sysconfig.get_config_var, args))
-            return _orig()
+            return list(map(sysconfig.get_config_var, args)) if args else _orig()
 
         sysconfig.get_config_var = gcv
         sysconfig.get_config_vars = gcvs
@@ -251,24 +245,22 @@ def gcv(v):
             return 'gcc-4.2'
 
         def gcvs(*args, _orig=sysconfig.get_config_vars):
-            if args:
-                return list(map(sysconfig.get_config_var, args))
-            return _orig()
+            return list(map(sysconfig.get_config_var, args)) if args else _orig()
 
         sysconfig.get_config_var = gcv
         sysconfig.get_config_vars = gcvs
-        with mock.patch.object(
-            self.cc, 'spawn', return_value=None
-        ) as mock_spawn, mock.patch.object(
-            self.cc, '_need_link', return_value=True
-        ), mock.patch.object(
-            self.cc, 'mkpath', return_value=None
-        ), EnvironmentVarGuard() as env:
+        with (mock.patch.object(
+                self.cc, 'spawn', return_value=None
+            ) as mock_spawn, mock.patch.object(
+                self.cc, '_need_link', return_value=True
+            ), mock.patch.object(
+                self.cc, 'mkpath', return_value=None
+            ), EnvironmentVarGuard() as env):
             env['CC'] = 'ccache my_cc'
             env['CXX'] = 'my_cxx'
             del env['LDSHARED']
             sysconfig.customize_compiler(self.cc)
-            assert self.cc.linker_so[0:2] == ['ccache', 'my_cc']
+            assert self.cc.linker_so[:2] == ['ccache', 'my_cc']
             self.cc.link(None, [], 'a.out', target_lang='c++')
             call_args = mock_spawn.call_args[0][0]
             expected = ['my_cxx', '-bundle', '-undefined', 'dynamic_lookup']
@@ -285,9 +277,7 @@ def gcv(v):
             return 'gcc-4.2'
 
         def gcvs(*args, _orig=sysconfig.get_config_vars):
-            if args:
-                return list(map(sysconfig.get_config_var, args))
-            return _orig()
+            return list(map(sysconfig.get_config_var, args)) if args else _orig()
 
         sysconfig.get_config_var = gcv
         sysconfig.get_config_vars = gcvs
diff --git a/setuptools/_distutils/tests/test_upload.py b/setuptools/_distutils/tests/test_upload.py
index af113b8b6e..b17901e3a3 100644
--- a/setuptools/_distutils/tests/test_upload.py
+++ b/setuptools/_distutils/tests/test_upload.py
@@ -45,10 +45,7 @@
 class FakeOpen:
     def __init__(self, url, msg=None, code=None):
         self.url = url
-        if not isinstance(url, str):
-            self.req = url
-        else:
-            self.req = None
+        self.req = url if not isinstance(url, str) else None
         self.msg = msg or 'OK'
         self.code = code or 200
 
diff --git a/setuptools/_distutils/tests/test_util.py b/setuptools/_distutils/tests/test_util.py
index 070a277069..c798c21046 100644
--- a/setuptools/_distutils/tests/test_util.py
+++ b/setuptools/_distutils/tests/test_util.py
@@ -112,9 +112,7 @@ def _isabs(path):
         os.path.isabs = _isabs
 
         def _splitdrive(path):
-            if path.startswith('c:'):
-                return ('', path.replace('c:', ''))
-            return ('', path)
+            return ('', path.replace('c:', '')) if path.startswith('c:') else ('', path)
 
         os.path.splitdrive = _splitdrive
 
diff --git a/setuptools/_distutils/tests/test_version.py b/setuptools/_distutils/tests/test_version.py
index ff52ea4683..1c82ba5568 100644
--- a/setuptools/_distutils/tests/test_version.py
+++ b/setuptools/_distutils/tests/test_version.py
@@ -48,20 +48,14 @@ def test_cmp_strict(self):
                 if wanted is ValueError:
                     continue
                 else:
-                    raise AssertionError(
-                        ("cmp(%s, %s) " "shouldn't raise ValueError") % (v1, v2)
-                    )
-            assert res == wanted, 'cmp({}, {}) should be {}, got {}'.format(
-                v1, v2, wanted, res
-            )
+                    raise AssertionError(f"cmp({v1}, {v2}) shouldn't raise ValueError")
+            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
             res = StrictVersion(v1)._cmp(v2)
-            assert res == wanted, 'cmp({}, {}) should be {}, got {}'.format(
-                v1, v2, wanted, res
-            )
+            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
             res = StrictVersion(v1)._cmp(object())
             assert (
                 res is NotImplemented
-            ), 'cmp({}, {}) should be NotImplemented, got {}'.format(v1, v2, res)
+            ), f'cmp({v1}, {v2}) should be NotImplemented, got {res}'
 
     def test_cmp(self):
         versions = (
@@ -77,14 +71,10 @@ def test_cmp(self):
 
         for v1, v2, wanted in versions:
             res = LooseVersion(v1)._cmp(LooseVersion(v2))
-            assert res == wanted, 'cmp({}, {}) should be {}, got {}'.format(
-                v1, v2, wanted, res
-            )
+            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
             res = LooseVersion(v1)._cmp(v2)
-            assert res == wanted, 'cmp({}, {}) should be {}, got {}'.format(
-                v1, v2, wanted, res
-            )
+            assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}'
             res = LooseVersion(v1)._cmp(object())
             assert (
                 res is NotImplemented
-            ), 'cmp({}, {}) should be NotImplemented, got {}'.format(v1, v2, res)
+            ), f'cmp({v1}, {v2}) should be NotImplemented, got {res}'
diff --git a/setuptools/_distutils/text_file.py b/setuptools/_distutils/text_file.py
index 36f947e51c..87a01012ab 100644
--- a/setuptools/_distutils/text_file.py
+++ b/setuptools/_distutils/text_file.py
@@ -95,9 +95,9 @@ def __init__(self, filename=None, file=None, **options):
                 setattr(self, opt, self.default_options[opt])
 
         # sanity check client option hash
-        for opt in options.keys():
+        for opt in options:
             if opt not in self.default_options:
-                raise KeyError("invalid TextFile option '%s'" % opt)
+                raise KeyError(f"invalid TextFile option '{opt}'")
 
         if file is None:
             self.open(filename)
@@ -128,10 +128,9 @@ def close(self):
         file.close()
 
     def gen_error(self, msg, line=None):
-        outmsg = []
         if line is None:
             line = self.current_line
-        outmsg.append(self.filename + ", ")
+        outmsg = [f"{self.filename}, "]
         if isinstance(line, (list, tuple)):
             outmsg.append("lines %d-%d: " % tuple(line))
         else:
@@ -140,7 +139,7 @@ def gen_error(self, msg, line=None):
         return "".join(outmsg)
 
     def error(self, msg, line=None):
-        raise ValueError("error: " + self.gen_error(msg, line))
+        raise ValueError(f"error: {self.gen_error(msg, line)}")
 
     def warn(self, msg, line=None):
         """Print (to stderr) a warning message tied to the current logical
@@ -150,9 +149,9 @@ def warn(self, msg, line=None):
         the current line number; it may be a list or tuple to indicate a
         range of physical lines, or an integer for a single physical
         line."""
-        sys.stderr.write("warning: " + self.gen_error(msg, line) + "\n")
+        sys.stderr.write(f"warning: {self.gen_error(msg, line)}" + "\n")
 
-    def readline(self):  # noqa: C901
+    def readline(self):    # noqa: C901
         """Read and return a single logical line from the current file (or
         from an internal buffer if lines have previously been "unread"
         with 'unreadline()').  If the 'join_lines' option is true, this
@@ -192,8 +191,6 @@ def readline(self):  # noqa: C901
                 if pos == -1:  # no "#" -- no comments
                     pass
 
-                # It's definitely a comment -- either "#" is the first
-                # character, or it's elsewhere and unescaped.
                 elif pos == 0 or line[pos - 1] != "\\":
                     # Have to preserve the trailing newline, because it's
                     # the job of a later step (rstrip_ws) to remove it --
@@ -201,8 +198,8 @@ def readline(self):  # noqa: C901
                     # (NB. this means that if the final line is all comment
                     # and has no trailing newline, we will think that it's
                     # EOF; I think that's OK.)
-                    eol = (line[-1] == '\n') and '\n' or ''
-                    line = line[0:pos] + eol
+                    eol = '\n' if line[-1] == '\n' else ''
+                    line = line[:pos] + eol
 
                     # If all that's left is whitespace, then skip line
                     # *now*, before we try to join it to 'buildup_line' --
@@ -232,17 +229,16 @@ def readline(self):  # noqa: C901
                     self.current_line[1] = self.current_line[1] + 1
                 else:
                     self.current_line = [self.current_line, self.current_line + 1]
-            # just an ordinary line, read it as usual
-            else:
-                if line is None:  # eof
-                    return None
+            elif line is None:  # eof
+                return None
 
+            else:
                 # still have to be careful about incrementing the line number!
-                if isinstance(self.current_line, list):
-                    self.current_line = self.current_line[1] + 1
-                else:
-                    self.current_line = self.current_line + 1
-
+                self.current_line = (
+                    self.current_line[1] + 1
+                    if isinstance(self.current_line, list)
+                    else self.current_line + 1
+                )
             # strip whitespace however the client wants (leading and
             # trailing, or one or the other, or neither)
             if self.lstrip_ws and self.rstrip_ws:
@@ -263,7 +259,7 @@ def readline(self):  # noqa: C901
                     continue
 
                 if line[-2:] == '\\\n':
-                    buildup_line = line[0:-2] + '\n'
+                    buildup_line = line[:-2] + '\n'
                     continue
 
             # well, I guess there's some actual content there: return it
diff --git a/setuptools/_distutils/unixccompiler.py b/setuptools/_distutils/unixccompiler.py
index bd8db9ac3f..85eaae8140 100644
--- a/setuptools/_distutils/unixccompiler.py
+++ b/setuptools/_distutils/unixccompiler.py
@@ -274,7 +274,7 @@ def link(
     # ccompiler.py.
 
     def library_dir_option(self, dir):
-        return "-L" + dir
+        return f"-L{dir}"
 
     def _is_gcc(self):
         cc_var = sysconfig.get_config_var("CC")
@@ -300,16 +300,13 @@ def runtime_library_dir_option(self, dir):
 
             macosx_target_ver = get_macosx_target_ver()
             if macosx_target_ver and split_version(macosx_target_ver) >= [10, 5]:
-                return "-Wl,-rpath," + dir
+                return f"-Wl,-rpath,{dir}"
             else:  # no support for -rpath on earlier macOS versions
-                return "-L" + dir
+                return f"-L{dir}"
         elif sys.platform[:7] == "freebsd":
-            return "-Wl,-rpath=" + dir
+            return f"-Wl,-rpath={dir}"
         elif sys.platform[:5] == "hp-ux":
-            return [
-                "-Wl,+s" if self._is_gcc() else "+s",
-                "-L" + dir,
-            ]
+            return ["-Wl,+s" if self._is_gcc() else "+s", f"-L{dir}"]
 
         # For all compilers, `-Wl` is the presumed way to
         # pass a compiler option to the linker and `-R` is
@@ -317,12 +314,12 @@ def runtime_library_dir_option(self, dir):
         if sysconfig.get_config_var("GNULD") == "yes":
             # GNU ld needs an extra option to get a RUNPATH
             # instead of just an RPATH.
-            return "-Wl,--enable-new-dtags,-R" + dir
+            return f"-Wl,--enable-new-dtags,-R{dir}"
         else:
-            return "-Wl,-R" + dir
+            return f"-Wl,-R{dir}"
 
     def library_option(self, lib):
-        return "-l" + lib
+        return f"-l{lib}"
 
     @staticmethod
     def _library_root(dir):
diff --git a/setuptools/_distutils/util.py b/setuptools/_distutils/util.py
index 7ae914f7ee..0d9162367d 100644
--- a/setuptools/_distutils/util.py
+++ b/setuptools/_distutils/util.py
@@ -79,8 +79,7 @@ def get_macosx_target_ver_from_syscfg():
     if _syscfg_macosx_ver is None:
         from distutils import sysconfig
 
-        ver = sysconfig.get_config_var(MACOSX_VERSION_VAR) or ''
-        if ver:
+        if ver := sysconfig.get_config_var(MACOSX_VERSION_VAR) or '':
             _syscfg_macosx_ver = ver
     return _syscfg_macosx_ver
 
@@ -93,9 +92,7 @@ def get_macosx_target_ver():
     variable. If neither source has a value, then None is returned"""
 
     syscfg_ver = get_macosx_target_ver_from_syscfg()
-    env_ver = os.environ.get(MACOSX_VERSION_VAR)
-
-    if env_ver:
+    if env_ver := os.environ.get(MACOSX_VERSION_VAR):
         # Validate overridden version against sysconfig version, if have both.
         # Ensure that the deployment target of the build process is not less
         # than 10.3 if the interpreter was built for 10.3 or later.  This
@@ -108,9 +105,8 @@ def get_macosx_target_ver():
             and split_version(env_ver) < [10, 3]
         ):
             my_msg = (
-                '$' + MACOSX_VERSION_VAR + ' mismatch: '
-                'now "%s" but "%s" during configure; '
-                'must use 10.3 or later' % (env_ver, syscfg_ver)
+                f'${MACOSX_VERSION_VAR}'
+                + f' mismatch: now "{env_ver}" but "{syscfg_ver}" during configure; must use 10.3 or later'
             )
             raise DistutilsPlatformError(my_msg)
         return env_ver
@@ -136,16 +132,14 @@ def convert_path(pathname):
     if not pathname:
         return pathname
     if pathname[0] == '/':
-        raise ValueError("path '%s' cannot be absolute" % pathname)
+        raise ValueError(f"path '{pathname}' cannot be absolute")
     if pathname[-1] == '/':
-        raise ValueError("path '%s' cannot end with '/'" % pathname)
+        raise ValueError(f"path '{pathname}' cannot end with '/'")
 
     paths = pathname.split('/')
     while '.' in paths:
         paths.remove('.')
-    if not paths:
-        return os.curdir
-    return os.path.join(*paths)
+    return os.curdir if not paths else os.path.join(*paths)
 
 
 # convert_path ()
@@ -157,18 +151,18 @@ def change_root(new_root, pathname):
     Otherwise, it requires making 'pathname' relative and then joining the
     two, which is tricky on DOS/Windows and Mac OS.
     """
-    if os.name == 'posix':
-        if not os.path.isabs(pathname):
-            return os.path.join(new_root, pathname)
-        else:
-            return os.path.join(new_root, pathname[1:])
-
-    elif os.name == 'nt':
+    if os.name == 'nt':
         (drive, path) = os.path.splitdrive(pathname)
         if path[0] == '\\':
             path = path[1:]
         return os.path.join(new_root, path)
 
+    elif os.name == 'posix':
+        return (
+            os.path.join(new_root, pathname)
+            if not os.path.isabs(pathname)
+            else os.path.join(new_root, pathname[1:])
+        )
     raise DistutilsPlatformError(f"nothing known about platform '{os.name}'")
 
 
@@ -302,7 +296,7 @@ def split_quoted(s):
                 raise RuntimeError("this can't happen (bad char '%c')" % s[end])
 
             if m is None:
-                raise ValueError("bad string (mismatched %s quotes?)" % s[end])
+                raise ValueError(f"bad string (mismatched {s[end]} quotes?)")
 
             (beg, end) = m.span()
             s = s[:beg] + s[beg + 1 : end - 1] + s[end:]
@@ -329,8 +323,8 @@ def execute(func, args, msg=None, verbose=0, dry_run=0):
     """
     if msg is None:
         msg = "{}{!r}".format(func.__name__, args)
-        if msg[-2:] == ',)':  # correct for singleton tuple
-            msg = msg[0:-2] + ')'
+        if msg.endswith(',)'):  # correct for singleton tuple
+            msg = f'{msg[:-2]})'
 
     log.info(msg)
     if not dry_run:
@@ -460,12 +454,8 @@ def byte_compile(  # noqa: C901
         cmd.extend(subprocess._optim_args_from_interpreter_flags())
         cmd.append(script_name)
         spawn(cmd, dry_run=dry_run)
-        execute(os.remove, (script_name,), "removing %s" % script_name, dry_run=dry_run)
+        execute(os.remove, (script_name,), f"removing {script_name}", dry_run=dry_run)
 
-    # "Direct" byte-compilation: use the py_compile module to compile
-    # right here, right now.  Note that the script generated in indirect
-    # mode simply calls 'byte_compile()' in direct mode, a weird sort of
-    # cross-process recursion.  Hey, it works!
     else:
         from py_compile import compile
 
diff --git a/setuptools/_distutils/version.py b/setuptools/_distutils/version.py
index 74c40d7bfd..446bcdb667 100644
--- a/setuptools/_distutils/version.py
+++ b/setuptools/_distutils/version.py
@@ -60,37 +60,27 @@ def __init__(self, vstring=None):
         )
 
     def __repr__(self):
-        return "{} ('{}')".format(self.__class__.__name__, str(self))
+        return f"{self.__class__.__name__} ('{str(self)}')"
 
     def __eq__(self, other):
         c = self._cmp(other)
-        if c is NotImplemented:
-            return c
-        return c == 0
+        return c if c is NotImplemented else c == 0
 
     def __lt__(self, other):
         c = self._cmp(other)
-        if c is NotImplemented:
-            return c
-        return c < 0
+        return c if c is NotImplemented else c < 0
 
     def __le__(self, other):
         c = self._cmp(other)
-        if c is NotImplemented:
-            return c
-        return c <= 0
+        return c if c is NotImplemented else c <= 0
 
     def __gt__(self, other):
         c = self._cmp(other)
-        if c is NotImplemented:
-            return c
-        return c > 0
+        return c if c is NotImplemented else c > 0
 
     def __ge__(self, other):
         c = self._cmp(other)
-        if c is NotImplemented:
-            return c
-        return c >= 0
+        return c if c is NotImplemented else c >= 0
 
 
 # Interface for version-number classes -- must be implemented
@@ -154,7 +144,7 @@ class StrictVersion(Version):
     def parse(self, vstring):
         match = self.version_re.match(vstring)
         if not match:
-            raise ValueError("invalid version number '%s'" % vstring)
+            raise ValueError(f"invalid version number '{vstring}'")
 
         (major, minor, patch, prerelease, prerelease_num) = match.group(1, 2, 4, 5, 6)
 
@@ -163,14 +153,11 @@ def parse(self, vstring):
         else:
             self.version = tuple(map(int, [major, minor])) + (0,)
 
-        if prerelease:
-            self.prerelease = (prerelease[0], int(prerelease_num))
-        else:
-            self.prerelease = None
+        self.prerelease = (prerelease[0], int(prerelease_num)) if prerelease else None
 
     def __str__(self):
         if self.version[2] == 0:
-            vstring = '.'.join(map(str, self.version[0:2]))
+            vstring = '.'.join(map(str, self.version[:2]))
         else:
             vstring = '.'.join(map(str, self.version))
 
@@ -189,11 +176,7 @@ def _cmp(self, other):  # noqa: C901
         if self.version != other.version:
             # numeric versions don't match
             # prerelease stuff doesn't matter
-            if self.version < other.version:
-                return -1
-            else:
-                return 1
-
+            return -1 if self.version < other.version else 1
         # have to compare prerelease
         # case 1: neither has prerelease; they're equal
         # case 2: self has prerelease, other doesn't; other is greater
@@ -204,17 +187,15 @@ def _cmp(self, other):  # noqa: C901
             return 0
         elif self.prerelease and not other.prerelease:
             return -1
-        elif not self.prerelease and other.prerelease:
+        elif not self.prerelease:
             return 1
-        elif self.prerelease and other.prerelease:
+        else:
             if self.prerelease == other.prerelease:
                 return 0
             elif self.prerelease < other.prerelease:
                 return -1
             else:
                 return 1
-        else:
-            assert False, "never get here"
 
 
 # end class StrictVersion
@@ -327,18 +308,15 @@ def parse(self, vstring):
         self.vstring = vstring
         components = [x for x in self.component_re.split(vstring) if x and x != '.']
         for i, obj in enumerate(components):
-            try:
+            with contextlib.suppress(ValueError):
                 components[i] = int(obj)
-            except ValueError:
-                pass
-
         self.version = components
 
     def __str__(self):
         return self.vstring
 
     def __repr__(self):
-        return "LooseVersion ('%s')" % str(self)
+        return f"LooseVersion ('{str(self)}')"
 
     def _cmp(self, other):
         if isinstance(other, str):
diff --git a/setuptools/_distutils/versionpredicate.py b/setuptools/_distutils/versionpredicate.py
index d6c0c007aa..25d11a9b52 100644
--- a/setuptools/_distutils/versionpredicate.py
+++ b/setuptools/_distutils/versionpredicate.py
@@ -115,8 +115,7 @@ def __init__(self, versionPredicateStr):
         if not match:
             raise ValueError("bad package name in %r" % versionPredicateStr)
         self.name, paren = match.groups()
-        paren = paren.strip()
-        if paren:
+        if paren := paren.strip():
             match = re_paren.match(paren)
             if not match:
                 raise ValueError("expected parenthesized list: %r" % paren)
@@ -128,21 +127,17 @@ def __init__(self, versionPredicateStr):
             self.pred = []
 
     def __str__(self):
-        if self.pred:
-            seq = [cond + " " + str(ver) for cond, ver in self.pred]
-            return self.name + " (" + ", ".join(seq) + ")"
-        else:
+        if not self.pred:
             return self.name
+        seq = [f"{cond} {str(ver)}" for cond, ver in self.pred]
+        return f"{self.name} (" + ", ".join(seq) + ")"
 
     def satisfied_by(self, version):
         """True if version is compatible with all the predicates in self.
         The parameter version must be acceptable to the StrictVersion
         constructor.  It may be either a string or StrictVersion.
         """
-        for cond, ver in self.pred:
-            if not compmap[cond](version, ver):
-                return False
-        return True
+        return all(compmap[cond](version, ver) for cond, ver in self.pred)
 
 
 _provision_rx = None
diff --git a/setuptools/_imp.py b/setuptools/_imp.py
index 9d4ead0eb0..af51244fb0 100644
--- a/setuptools/_imp.py
+++ b/setuptools/_imp.py
@@ -30,7 +30,7 @@ def find_module(module, paths=None):
     """Just like 'imp.find_module()', but with package support"""
     spec = find_spec(module, paths)
     if spec is None:
-        raise ImportError("Can't find %s" % module)
+        raise ImportError(f"Can't find {module}")
     if not spec.has_location and hasattr(spec, 'submodule_search_locations'):
         spec = importlib.util.spec_from_loader('__init__.py', spec.loader)
 
@@ -75,14 +75,14 @@ def find_module(module, paths=None):
 
 
 def get_frozen_object(module, paths=None):
-    spec = find_spec(module, paths)
-    if not spec:
-        raise ImportError("Can't find %s" % module)
-    return spec.loader.get_code(module)
+    if spec := find_spec(module, paths):
+        return spec.loader.get_code(module)
+    else:
+        raise ImportError(f"Can't find {module}")
 
 
 def get_module(module, paths, info):
-    spec = find_spec(module, paths)
-    if not spec:
-        raise ImportError("Can't find %s" % module)
-    return module_from_spec(spec)
+    if spec := find_spec(module, paths):
+        return module_from_spec(spec)
+    else:
+        raise ImportError(f"Can't find {module}")
diff --git a/setuptools/_normalization.py b/setuptools/_normalization.py
index 8d4731eb60..d72e6c750f 100644
--- a/setuptools/_normalization.py
+++ b/setuptools/_normalization.py
@@ -89,8 +89,7 @@ def best_effort_version(version: str) -> str:
         return safe_version(version)
     except packaging.version.InvalidVersion:
         v = version.replace(' ', '.')
-        match = _PEP440_FALLBACK.search(v)
-        if match:
+        if match := _PEP440_FALLBACK.search(v):
             safe = match["safe"]
             rest = v[len(safe) :]
         else:
diff --git a/setuptools/_vendor/importlib_metadata/__init__.py b/setuptools/_vendor/importlib_metadata/__init__.py
index 8864214375..5341a6b7bf 100644
--- a/setuptools/_vendor/importlib_metadata/__init__.py
+++ b/setuptools/_vendor/importlib_metadata/__init__.py
@@ -114,8 +114,7 @@ def read(text, filter_=None):
         lines = filter(filter_, map(str.strip, text.splitlines()))
         name = None
         for value in lines:
-            section_match = value.startswith('[') and value.endswith(']')
-            if section_match:
+            if section_match := value.startswith('[') and value.endswith(']'):
                 name = value.strip('[]')
                 continue
             yield Pair(name, value)
@@ -739,7 +738,7 @@ def _search_paths(cls, name, paths):
             path.search(prepared) for path in map(FastPath, paths)
         )
 
-    def invalidate_caches(cls):
+    def invalidate_caches(self):
         FastPath.__new__.cache_clear()
 
 
diff --git a/setuptools/_vendor/importlib_resources/_adapters.py b/setuptools/_vendor/importlib_resources/_adapters.py
index ea363d86a5..30bd38a8eb 100644
--- a/setuptools/_vendor/importlib_resources/_adapters.py
+++ b/setuptools/_vendor/importlib_resources/_adapters.py
@@ -35,7 +35,7 @@ def _io_wrapper(file, mode='r', *args, **kwargs):
     elif mode == 'rb':
         return file
     raise ValueError(
-        "Invalid mode value '{}', only 'r' and 'rb' are supported".format(mode)
+        f"Invalid mode value '{mode}', only 'r' and 'rb' are supported"
     )
 
 
@@ -118,7 +118,7 @@ class OrphanPath(abc.Traversable):
         """
 
         def __init__(self, *path_parts):
-            if len(path_parts) < 1:
+            if not path_parts:
                 raise ValueError('Need at least one path part to construct a path')
             self._path = path_parts
 
diff --git a/setuptools/_vendor/importlib_resources/_common.py b/setuptools/_vendor/importlib_resources/_common.py
index 3c6de1cfb2..01bf48ae53 100644
--- a/setuptools/_vendor/importlib_resources/_common.py
+++ b/setuptools/_vendor/importlib_resources/_common.py
@@ -67,9 +67,7 @@ def get_resource_reader(package: types.ModuleType) -> Optional[ResourceReader]:
     # TypeError.  That seems terrible.
     spec = package.__spec__
     reader = getattr(spec.loader, 'get_resource_reader', None)  # type: ignore
-    if reader is None:
-        return None
-    return reader(spec.name)  # type: ignore
+    return None if reader is None else reader(spec.name)
 
 
 @functools.singledispatch
@@ -135,10 +133,8 @@ def _tempfile(
         del reader
         yield pathlib.Path(raw_path)
     finally:
-        try:
+        with contextlib.suppress(FileNotFoundError):
             _os_remove(raw_path)
-        except FileNotFoundError:
-            pass
 
 
 def _temp_file(path):
diff --git a/setuptools/_vendor/jaraco/functools.py b/setuptools/_vendor/jaraco/functools.py
index ebf7a36137..c5de01435c 100644
--- a/setuptools/_vendor/jaraco/functools.py
+++ b/setuptools/_vendor/jaraco/functools.py
@@ -204,7 +204,7 @@ def _special_method_cache(method, cache_wrapper):
     if name not in special_names:
         return
 
-    wrapper_name = '__cached' + name
+    wrapper_name = f'__cached{name}'
 
     def proxy(self, *args, **kwargs):
         if wrapper_name not in vars(self):
@@ -369,7 +369,7 @@ def retry_call(func, cleanup=lambda: None, retries=0, trap=()):
     to propagate.
     """
     attempts = itertools.count() if retries == float('inf') else range(retries)
-    for attempt in attempts:
+    for _ in attempts:
         try:
             return func()
         except trap:
@@ -508,7 +508,7 @@ def save_method_args(method):
 
     @functools.wraps(method)
     def wrapper(self, *args, **kwargs):
-        attr_name = '_saved_' + method.__name__
+        attr_name = f'_saved_{method.__name__}'
         attr = args_and_kwargs(args, kwargs)
         setattr(self, attr_name, attr)
         return method(self, *args, **kwargs)
diff --git a/setuptools/_vendor/more_itertools/more.py b/setuptools/_vendor/more_itertools/more.py
index e6fca4d47f..a15efb05db 100644
--- a/setuptools/_vendor/more_itertools/more.py
+++ b/setuptools/_vendor/more_itertools/more.py
@@ -351,10 +351,7 @@ def prepend(self, *items):
         self._cache.extendleft(reversed(items))
 
     def __next__(self):
-        if self._cache:
-            return self._cache.popleft()
-
-        return next(self._it)
+        return self._cache.popleft() if self._cache else next(self._it)
 
     def _get_slice(self, index):
         # Normalize the slice's arguments
@@ -937,10 +934,7 @@ def __iter__(self):
         yield from self._cache.keys()
 
     def __getitem__(self, value):
-        if not self._validator(value):
-            return iter(())
-
-        return self._get_values(value)
+        return iter(()) if not self._validator(value) else self._get_values(value)
 
 
 def spy(iterable, n=1):
@@ -1409,8 +1403,7 @@ def repeat_last(iterable, default=None):
 
     """
     item = _marker
-    for item in iterable:
-        yield item
+    yield from iterable
     final = default if item is _marker else item
     yield from repeat(final)
 
@@ -1941,7 +1934,9 @@ class numeric_range(abc.Sequence, abc.Hashable):
 
     def __init__(self, *args):
         argc = len(args)
-        if argc == 1:
+        if argc == 0:
+            raise TypeError(f'numeric_range expected at least 1 argument, got {argc}')
+        elif argc == 1:
             (self._stop,) = args
             self._start = type(self._stop)(0)
             self._step = type(self._stop - self._start)(1)
@@ -1950,16 +1945,8 @@ def __init__(self, *args):
             self._step = type(self._stop - self._start)(1)
         elif argc == 3:
             self._start, self._stop, self._step = args
-        elif argc == 0:
-            raise TypeError(
-                'numeric_range expected at least '
-                '1 argument, got {}'.format(argc)
-            )
         else:
-            raise TypeError(
-                'numeric_range expected at most '
-                '3 arguments, got {}'.format(argc)
-            )
+            raise TypeError(f'numeric_range expected at most 3 arguments, got {argc}')
 
         self._zero = type(self._step)(0)
         if self._step == self._zero:
@@ -1968,35 +1955,31 @@ def __init__(self, *args):
         self._init_len()
 
     def __bool__(self):
-        if self._growing:
-            return self._start < self._stop
-        else:
-            return self._start > self._stop
+        return self._start < self._stop if self._growing else self._start > self._stop
 
     def __contains__(self, elem):
         if self._growing:
             if self._start <= elem < self._stop:
                 return (elem - self._start) % self._step == self._zero
-        else:
-            if self._start >= elem > self._stop:
-                return (self._start - elem) % (-self._step) == self._zero
+        elif self._start >= elem > self._stop:
+            return (self._start - elem) % (-self._step) == self._zero
 
         return False
 
     def __eq__(self, other):
-        if isinstance(other, numeric_range):
-            empty_self = not bool(self)
-            empty_other = not bool(other)
-            if empty_self or empty_other:
-                return empty_self and empty_other  # True if both empty
-            else:
-                return (
-                    self._start == other._start
-                    and self._step == other._step
-                    and self._get_by_index(-1) == other._get_by_index(-1)
-                )
-        else:
+        if not isinstance(other, numeric_range):
             return False
+        empty_self = not bool(self)
+        empty_other = not bool(other)
+        return (
+            empty_self and empty_other
+            if empty_self or empty_other
+            else (
+                self._start == other._start
+                and self._step == other._step
+                and self._get_by_index(-1) == other._get_by_index(-1)
+            )
+        )
 
     def __getitem__(self, key):
         if isinstance(key, int):
@@ -2021,8 +2004,7 @@ def __getitem__(self, key):
             return numeric_range(start, stop, step)
         else:
             raise TypeError(
-                'numeric range indices must be '
-                'integers or slices, not {}'.format(type(key).__name__)
+                f'numeric range indices must be integers or slices, not {type(key).__name__}'
             )
 
     def __hash__(self):
@@ -2062,13 +2044,9 @@ def __reduce__(self):
 
     def __repr__(self):
         if self._step == 1:
-            return "numeric_range({}, {})".format(
-                repr(self._start), repr(self._stop)
-            )
+            return f"numeric_range({repr(self._start)}, {repr(self._stop)})"
         else:
-            return "numeric_range({}, {}, {})".format(
-                repr(self._start), repr(self._stop), repr(self._step)
-            )
+            return f"numeric_range({repr(self._start)}, {repr(self._stop)}, {repr(self._step)})"
 
     def __reversed__(self):
         return iter(
@@ -2086,13 +2064,12 @@ def index(self, value):
                 q, r = divmod(value - self._start, self._step)
                 if r == self._zero:
                     return int(q)
-        else:
-            if self._start >= value > self._stop:
-                q, r = divmod(self._start - value, -self._step)
-                if r == self._zero:
-                    return int(q)
+        elif self._start >= value > self._stop:
+            q, r = divmod(self._start - value, -self._step)
+            if r == self._zero:
+                return int(q)
 
-        raise ValueError("{} is not in numeric range".format(value))
+        raise ValueError(f"{value} is not in numeric range")
 
     def _get_by_index(self, i):
         if i < 0:
@@ -2292,10 +2269,7 @@ class islice_extended:
 
     def __init__(self, iterable, *args):
         it = iter(iterable)
-        if args:
-            self._iterable = _islice_helper(it, slice(*args))
-        else:
-            self._iterable = it
+        self._iterable = _islice_helper(it, slice(*args)) if args else it
 
     def __iter__(self):
         return self
@@ -2371,11 +2345,7 @@ def _islice_helper(it, s):
             # If start and stop are both negative they are comparable and
             # we can just slice. Otherwise we can adjust start to be negative
             # and then slice.
-            if start < 0:
-                i, j = start, stop
-            else:
-                i, j = min(start - len_iter, -1), None
-
+            i, j = (start, stop) if start < 0 else (min(start - len_iter, -1), None)
             for index, item in list(cache)[i:j:step]:
                 yield item
         else:
@@ -2556,7 +2526,7 @@ def __len__(self):
         return len(self._target)
 
     def __repr__(self):
-        return '{}({})'.format(self.__class__.__name__, repr(self._target))
+        return f'{self.__class__.__name__}({repr(self._target)})'
 
 
 class seekable:
@@ -2647,10 +2617,7 @@ class seekable:
 
     def __init__(self, iterable, maxlen=None):
         self._source = iter(iterable)
-        if maxlen is None:
-            self._cache = []
-        else:
-            self._cache = deque([], maxlen)
+        self._cache = [] if maxlen is None else deque([], maxlen)
         self._index = None
 
     def __iter__(self):
@@ -3368,9 +3335,8 @@ def sample(iterable, k, weights=None):
     iterable = iter(iterable)
     if weights is None:
         return _sample_unweighted(iterable, k)
-    else:
-        weights = iter(weights)
-        return _sample_weighted(iterable, k, weights)
+    weights = iter(weights)
+    return _sample_weighted(iterable, k, weights)
 
 
 def is_sorted(iterable, key=None, reverse=False):
@@ -3471,9 +3437,7 @@ def __next__(self):
 
     @property
     def done(self):
-        if self._future is None:
-            return False
-        return self._future.done()
+        return False if self._future is None else self._future.done()
 
     @property
     def result(self):
diff --git a/setuptools/_vendor/more_itertools/recipes.py b/setuptools/_vendor/more_itertools/recipes.py
index 521abd7c2c..56a4f1c99d 100644
--- a/setuptools/_vendor/more_itertools/recipes.py
+++ b/setuptools/_vendor/more_itertools/recipes.py
@@ -539,7 +539,7 @@ def random_combination_with_replacement(iterable, r):
     """
     pool = tuple(iterable)
     n = len(pool)
-    indices = sorted(randrange(n) for i in range(r))
+    indices = sorted(randrange(n) for _ in range(r))
     return tuple(pool[i] for i in indices)
 
 
diff --git a/setuptools/_vendor/ordered_set.py b/setuptools/_vendor/ordered_set.py
index 14876000de..7270a79554 100644
--- a/setuptools/_vendor/ordered_set.py
+++ b/setuptools/_vendor/ordered_set.py
@@ -91,10 +91,7 @@ def __getitem__(self, index):
             return [self.items[i] for i in index]
         elif hasattr(index, "__index__") or isinstance(index, slice):
             result = self.items[index]
-            if isinstance(result, list):
-                return self.__class__(result)
-            else:
-                return result
+            return self.__class__(result) if isinstance(result, list) else result
         else:
             raise TypeError("Don't know how to index an OrderedSet by %r" % index)
 
@@ -113,16 +110,7 @@ def copy(self):
         return self.__class__(self)
 
     def __getstate__(self):
-        if len(self) == 0:
-            # The state can't be an empty list.
-            # We need to return a truthy value, or else __setstate__ won't be run.
-            #
-            # This could have been done more gracefully by always putting the state
-            # in a tuple, but this way is backwards- and forwards- compatible with
-            # previous versions of OrderedSet.
-            return (None,)
-        else:
-            return list(self)
+        return (None, ) if len(self) == 0 else list(self)
 
     def __setstate__(self, state):
         if state == (None,):
@@ -180,9 +168,7 @@ def update(self, sequence):
             for item in sequence:
                 item_index = self.add(item)
         except TypeError:
-            raise ValueError(
-                "Argument needs to be an iterable, got %s" % type(sequence)
-            )
+            raise ValueError(f"Argument needs to be an iterable, got {type(sequence)}")
         return item_index
 
     def index(self, key):
@@ -274,7 +260,7 @@ def __reversed__(self):
 
     def __repr__(self):
         if not self:
-            return "%s()" % (self.__class__.__name__,)
+            return f"{self.__class__.__name__}()"
         return "%s(%r)" % (self.__class__.__name__, list(self))
 
     def __eq__(self, other):
@@ -386,9 +372,7 @@ def issubset(self, other):
             >>> OrderedSet([1, 2, 3]).issubset({1, 4, 3, 5})
             False
         """
-        if len(self) > len(other):  # Fast check for obvious cases
-            return False
-        return all(item in other for item in self)
+        return False if len(self) > len(other) else all(item in other for item in self)
 
     def issuperset(self, other):
         """
@@ -402,9 +386,7 @@ def issuperset(self, other):
             >>> OrderedSet([1, 4, 3, 5]).issuperset({1, 2, 3})
             False
         """
-        if len(self) < len(other):  # Fast check for obvious cases
-            return False
-        return all(item in self for item in other)
+        return False if len(self) < len(other) else all(item in self for item in other)
 
     def symmetric_difference(self, other):
         """
diff --git a/setuptools/_vendor/packaging/__init__.py b/setuptools/_vendor/packaging/__init__.py
index 13cadc7f04..52f4c227ea 100644
--- a/setuptools/_vendor/packaging/__init__.py
+++ b/setuptools/_vendor/packaging/__init__.py
@@ -12,4 +12,4 @@
 __email__ = "donald@stufft.io"
 
 __license__ = "BSD-2-Clause or Apache-2.0"
-__copyright__ = "2014-2019 %s" % __author__
+__copyright__ = f"2014-2019 {__author__}"
diff --git a/setuptools/_vendor/packaging/_manylinux.py b/setuptools/_vendor/packaging/_manylinux.py
index 449c655be6..1db6fa82bf 100644
--- a/setuptools/_vendor/packaging/_manylinux.py
+++ b/setuptools/_vendor/packaging/_manylinux.py
@@ -161,9 +161,7 @@ def _parse_glibc_version(version_str: str) -> Tuple[int, int]:
 @functools.lru_cache()
 def _get_glibc_version() -> Tuple[int, int]:
     version_str = _glibc_version_string()
-    if version_str is None:
-        return (-1, -1)
-    return _parse_glibc_version(version_str)
+    return (-1, -1) if version_str is None else _parse_glibc_version(version_str)
 
 
 # From PEP 513, PEP 600
@@ -178,9 +176,7 @@ def _is_compatible(name: str, arch: str, version: _GLibCVersion) -> bool:
         return True
     if hasattr(_manylinux, "manylinux_compatible"):
         result = _manylinux.manylinux_compatible(version[0], version[1], arch)
-        if result is not None:
-            return bool(result)
-        return True
+        return bool(result) if result is not None else True
     if version == _GLibCVersion(2, 5):
         if hasattr(_manylinux, "manylinux1_compatible"):
             return bool(_manylinux.manylinux1_compatible)
diff --git a/setuptools/_vendor/packaging/_musllinux.py b/setuptools/_vendor/packaging/_musllinux.py
index 706ba600a9..0d4471d827 100644
--- a/setuptools/_vendor/packaging/_musllinux.py
+++ b/setuptools/_vendor/packaging/_musllinux.py
@@ -22,10 +22,10 @@ def _parse_musl_version(output: str) -> Optional[_MuslVersion]:
     lines = [n for n in (n.strip() for n in output.splitlines()) if n]
     if len(lines) < 2 or lines[0][:4] != "musl":
         return None
-    m = re.match(r"Version (\d+)\.(\d+)", lines[1])
-    if not m:
+    if m := re.match(r"Version (\d+)\.(\d+)", lines[1]):
+        return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
+    else:
         return None
-    return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
 
 
 @functools.lru_cache()
diff --git a/setuptools/_vendor/packaging/_parser.py b/setuptools/_vendor/packaging/_parser.py
index 5a18b758fe..9138491ceb 100644
--- a/setuptools/_vendor/packaging/_parser.py
+++ b/setuptools/_vendor/packaging/_parser.py
@@ -318,10 +318,7 @@ def _parse_marker_var(tokenizer: Tokenizer) -> MarkerVar:
 
 
 def process_env_var(env_var: str) -> Variable:
-    if (
-        env_var == "platform_python_implementation"
-        or env_var == "python_implementation"
-    ):
+    if env_var in {"platform_python_implementation", "python_implementation"}:
         return Variable("platform_python_implementation")
     else:
         return Variable(env_var)
diff --git a/setuptools/_vendor/packaging/markers.py b/setuptools/_vendor/packaging/markers.py
index 8b98fca723..ddbab25c1a 100644
--- a/setuptools/_vendor/packaging/markers.py
+++ b/setuptools/_vendor/packaging/markers.py
@@ -85,10 +85,7 @@ def _format_marker(
 
     if isinstance(marker, list):
         inner = (_format_marker(m, first=False) for m in marker)
-        if first:
-            return " ".join(inner)
-        else:
-            return "(" + " ".join(inner) + ")"
+        return " ".join(inner) if first else "(" + " ".join(inner) + ")"
     elif isinstance(marker, tuple):
         return " ".join([m.serialize() for m in marker])
     else:
@@ -226,10 +223,7 @@ def __hash__(self) -> int:
         return hash((self.__class__.__name__, str(self)))
 
     def __eq__(self, other: Any) -> bool:
-        if not isinstance(other, Marker):
-            return NotImplemented
-
-        return str(self) == str(other)
+        return str(self) == str(other) if isinstance(other, Marker) else NotImplemented
 
     def evaluate(self, environment: Optional[Dict[str, str]] = None) -> bool:
         """Evaluate a marker.
diff --git a/setuptools/_vendor/packaging/requirements.py b/setuptools/_vendor/packaging/requirements.py
index f34bfa85c8..dcc28b2e7a 100644
--- a/setuptools/_vendor/packaging/requirements.py
+++ b/setuptools/_vendor/packaging/requirements.py
@@ -42,9 +42,7 @@ def __init__(self, requirement_string: str) -> None:
             if parsed_url.scheme == "file":
                 if urllib.parse.urlunparse(parsed_url) != parsed.url:
                     raise InvalidRequirement("Invalid URL given")
-            elif not (parsed_url.scheme and parsed_url.netloc) or (
-                not parsed_url.scheme and not parsed_url.netloc
-            ):
+            elif not (parsed_url.scheme and parsed_url.netloc):
                 raise InvalidRequirement(f"Invalid URL: {parsed.url}")
             self.url: Optional[str] = parsed.url
         else:
diff --git a/setuptools/_vendor/packaging/specifiers.py b/setuptools/_vendor/packaging/specifiers.py
index ba8fe37b7f..70174b33f1 100644
--- a/setuptools/_vendor/packaging/specifiers.py
+++ b/setuptools/_vendor/packaging/specifiers.py
@@ -509,7 +509,7 @@ def _compare_greater_than(self, prospective: Version, spec_str: str) -> bool:
         return True
 
     def _compare_arbitrary(self, prospective: Version, spec: str) -> bool:
-        return str(prospective).lower() == str(spec).lower()
+        return str(prospective).lower() == spec.lower()
 
     def __contains__(self, item: Union[str, Version]) -> bool:
         """Return whether or not the item is contained in this specifier.
@@ -608,11 +608,11 @@ def filter(
         ['1.3', '1.5a1']
         """
 
-        yielded = False
         found_prereleases = []
 
         kw = {"prereleases": prereleases if prereleases is not None else True}
 
+        yielded = False
         # Attempt to iterate over all the values in the iterable and if any of
         # them match, yield them.
         for version in iterable:
@@ -622,12 +622,12 @@ def filter(
                 # If our version is a prerelease, and we were not set to allow
                 # prereleases, then we'll store it for later in case nothing
                 # else matches this specifier.
-                if parsed_version.is_prerelease and not (
-                    prereleases or self.prereleases
+                if (
+                    parsed_version.is_prerelease
+                    and not prereleases
+                    and not self.prereleases
                 ):
                     found_prereleases.append(version)
-                # Either this is not a prerelease, or we should have been
-                # accepting prereleases from the beginning.
                 else:
                     yielded = True
                     yield version
@@ -636,8 +636,7 @@ def filter(
         # any values, and if we have not and we have any prereleases stored up
         # then we will go ahead and yield the prereleases.
         if not yielded and found_prereleases:
-            for version in found_prereleases:
-                yield version
+            yield from found_prereleases
 
 
 _prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
@@ -646,8 +645,7 @@ def filter(
 def _version_split(version: str) -> List[str]:
     result: List[str] = []
     for item in version.split("."):
-        match = _prefix_regex.search(item)
-        if match:
+        if match := _prefix_regex.search(item):
             result.extend(match.groups())
         else:
             result.append(item)
@@ -707,12 +705,9 @@ def __init__(
         # strip each item to remove leading/trailing whitespace.
         split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
 
-        # Parsed each individual specifier, attempting first to make it a
-        # Specifier.
-        parsed: Set[Specifier] = set()
-        for specifier in split_specifiers:
-            parsed.add(Specifier(specifier))
-
+        parsed: Set[Specifier] = {
+            Specifier(specifier) for specifier in split_specifiers
+        }
         # Turn our parsed specifiers into a frozen set and save them for later.
         self._specs = frozenset(parsed)
 
@@ -730,12 +725,7 @@ def prereleases(self) -> Optional[bool]:
         # If we don't have any specifiers, and we don't have a forced value,
         # then we'll just return None since we don't know if this should have
         # pre-releases or not.
-        if not self._specs:
-            return None
-
-        # Otherwise we'll see if any of the given specifiers accept
-        # prereleases, if any of them do we'll return True, otherwise False.
-        return any(s.prereleases for s in self._specs)
+        return None if not self._specs else any(s.prereleases for s in self._specs)
 
     @prereleases.setter
     def prereleases(self, value: bool) -> None:
diff --git a/setuptools/_vendor/packaging/tags.py b/setuptools/_vendor/packaging/tags.py
index 76d243414d..4abd3583b5 100644
--- a/setuptools/_vendor/packaging/tags.py
+++ b/setuptools/_vendor/packaging/tags.py
@@ -196,10 +196,7 @@ def cpython_tags(
     interpreter = f"cp{_version_nodot(python_version[:2])}"
 
     if abis is None:
-        if len(python_version) > 1:
-            abis = _cpython_abis(python_version, warn)
-        else:
-            abis = []
+        abis = _cpython_abis(python_version, warn) if len(python_version) > 1 else []
     abis = list(abis)
     # 'abi3' and 'none' are explicitly handled later.
     for explicit_abi in ("abi3", "none"):
@@ -285,10 +282,7 @@ def generic_tags(
         interp_name = interpreter_name()
         interp_version = interpreter_version(warn=warn)
         interpreter = "".join([interp_name, interp_version])
-    if abis is None:
-        abis = _generic_abi()
-    else:
-        abis = list(abis)
+    abis = _generic_abi() if abis is None else list(abis)
     platforms = list(platforms or platform_tags())
     if "none" not in abis:
         abis.append("none")
@@ -341,10 +335,7 @@ def _mac_arch(arch: str, is_32bit: bool = _32_BIT_INTERPRETER) -> str:
     if not is_32bit:
         return arch
 
-    if arch.startswith("ppc"):
-        return "ppc"
-
-    return "i386"
+    return "ppc" if arch.startswith("ppc") else "i386"
 
 
 def _mac_binary_formats(version: MacVersion, cpu_arch: str) -> List[str]:
@@ -411,12 +402,8 @@ def mac_platforms(
             version = cast("MacVersion", tuple(map(int, version_str.split(".")[:2])))
     else:
         version = version
-    if arch is None:
-        arch = _mac_arch(cpu_arch)
-    else:
-        arch = arch
-
-    if (10, 0) <= version and version < (11, 0):
+    arch = _mac_arch(cpu_arch) if arch is None else arch
+    if (10, 0) <= version < (11, 0):
         # Prior to Mac OS 11, each yearly release of Mac OS bumped the
         # "minor" version number.  The major version was always 10.
         for minor_version in range(version[1], -1, -1):
@@ -457,9 +444,9 @@ def mac_platforms(
                         binary_format=binary_format,
                     )
         else:
+            binary_format = "universal2"
             for minor_version in range(16, 3, -1):
                 compat_version = 10, minor_version
-                binary_format = "universal2"
                 yield "macosx_{major}_{minor}_{binary_format}".format(
                     major=compat_version[0],
                     minor=compat_version[1],
@@ -512,10 +499,7 @@ def interpreter_version(*, warn: bool = False) -> str:
     Returns the version of the running interpreter.
     """
     version = _get_config_var("py_version_nodot", warn=warn)
-    if version:
-        version = str(version)
-    else:
-        version = _version_nodot(sys.version_info[:2])
+    version = str(version) if version else _version_nodot(sys.version_info[:2])
     return version
 
 
@@ -540,7 +524,7 @@ def sys_tags(*, warn: bool = False) -> Iterator[Tag]:
     if interp_name == "pp":
         interp = "pp3"
     elif interp_name == "cp":
-        interp = "cp" + interpreter_version(warn=warn)
+        interp = f"cp{interpreter_version(warn=warn)}"
     else:
         interp = None
     yield from compatible_tags(interpreter=interp)
diff --git a/setuptools/_vendor/packaging/version.py b/setuptools/_vendor/packaging/version.py
index b30e8cbf84..048b201ca9 100644
--- a/setuptools/_vendor/packaging/version.py
+++ b/setuptools/_vendor/packaging/version.py
@@ -470,20 +470,13 @@ def _parse_letter_version(
             letter = "a"
         elif letter == "beta":
             letter = "b"
-        elif letter in ["c", "pre", "preview"]:
+        elif letter in {"c", "pre", "preview"}:
             letter = "rc"
-        elif letter in ["rev", "r"]:
+        elif letter in {"rev", "r"}:
             letter = "post"
 
         return letter, int(number)
-    if not letter and number:
-        # We assume if we are given a number, but we are not given a letter
-        # then this is using the implicit post release syntax (e.g. 1.0-1)
-        letter = "post"
-
-        return letter, int(number)
-
-    return None
+    return ("post", int(number)) if number else None
 
 
 _local_version_separators = re.compile(r"[\._-]")
@@ -533,19 +526,9 @@ def _cmpkey(
         _pre = pre
 
     # Versions without a post segment should sort before those with one.
-    if post is None:
-        _post: PrePostDevType = NegativeInfinity
-
-    else:
-        _post = post
-
+    _post = NegativeInfinity if post is None else post
     # Versions without a development segment should sort after those with one.
-    if dev is None:
-        _dev: PrePostDevType = Infinity
-
-    else:
-        _dev = dev
-
+    _dev = Infinity if dev is None else dev
     if local is None:
         # Versions without a local segment should sort before those with one.
         _local: LocalType = NegativeInfinity
diff --git a/setuptools/_vendor/tomli/_parser.py b/setuptools/_vendor/tomli/_parser.py
index f1bb0aa19a..ba3dfe0e67 100644
--- a/setuptools/_vendor/tomli/_parser.py
+++ b/setuptools/_vendor/tomli/_parser.py
@@ -592,23 +592,23 @@ def parse_value(  # noqa: C901
     # IMPORTANT: order conditions based on speed of checking and likelihood
 
     # Basic strings
-    if char == '"':
-        if src.startswith('"""', pos):
-            return parse_multiline_str(src, pos, literal=False)
-        return parse_one_line_basic_str(src, pos)
-
-    # Literal strings
     if char == "'":
-        if src.startswith("'''", pos):
-            return parse_multiline_str(src, pos, literal=True)
-        return parse_literal_str(src, pos)
-
-    # Booleans
-    if char == "t":
+        return (
+            parse_multiline_str(src, pos, literal=True)
+            if src.startswith("'''", pos)
+            else parse_literal_str(src, pos)
+        )
+    elif char == "t":
         if src.startswith("true", pos):
             return pos + 4, True
-    if char == "f":
-        if src.startswith("false", pos):
+    elif char == '"':
+        return (
+            parse_multiline_str(src, pos, literal=False)
+            if src.startswith('"""', pos)
+            else parse_one_line_basic_str(src, pos)
+        )
+    if src.startswith("false", pos):
+        if char == "f":
             return pos + 5, False
 
     # Arrays
@@ -619,23 +619,16 @@ def parse_value(  # noqa: C901
     if char == "{":
         return parse_inline_table(src, pos, parse_float)
 
-    # Dates and times
-    datetime_match = RE_DATETIME.match(src, pos)
-    if datetime_match:
+    if datetime_match := RE_DATETIME.match(src, pos):
         try:
             datetime_obj = match_to_datetime(datetime_match)
         except ValueError as e:
             raise suffixed_err(src, pos, "Invalid date or datetime") from e
         return datetime_match.end(), datetime_obj
-    localtime_match = RE_LOCALTIME.match(src, pos)
-    if localtime_match:
+    if localtime_match := RE_LOCALTIME.match(src, pos):
         return localtime_match.end(), match_to_localtime(localtime_match)
 
-    # Integers and "normal" floats.
-    # The regex will greedily match any type starting with a decimal
-    # char, so needs to be located after handling of dates and times.
-    number_match = RE_NUMBER.match(src, pos)
-    if number_match:
+    if number_match := RE_NUMBER.match(src, pos):
         return number_match.end(), match_to_number(number_match, parse_float)
 
     # Special floats
@@ -657,10 +650,7 @@ def coord_repr(src: str, pos: Pos) -> str:
         if pos >= len(src):
             return "end of document"
         line = src.count("\n", 0, pos) + 1
-        if line == 1:
-            column = pos + 1
-        else:
-            column = pos - src.rindex("\n", 0, pos)
+        column = pos + 1 if line == 1 else pos - src.rindex("\n", 0, pos)
         return f"line {line}, column {column}"
 
     return TOMLDecodeError(f"{msg} (at {coord_repr(src, pos)})")
diff --git a/setuptools/_vendor/typing_extensions.py b/setuptools/_vendor/typing_extensions.py
index 9f1c7aa31e..42417d81f9 100644
--- a/setuptools/_vendor/typing_extensions.py
+++ b/setuptools/_vendor/typing_extensions.py
@@ -133,7 +133,7 @@ def __subclasscheck__(self, cls):
     class _FinalForm(typing._SpecialForm, _root=True):
 
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             item = typing._type_check(parameters,
@@ -187,9 +187,7 @@ def __getitem__(self, item):
 
         def _eval_type(self, globalns, localns):
             new_tp = typing._eval_type(self.__type__, globalns, localns)
-            if new_tp == self.__type__:
-                return self
-            return type(self)(new_tp, _root=True)
+            return self if new_tp == self.__type__ else type(self)(new_tp, _root=True)
 
         def __repr__(self):
             r = super().__repr__()
@@ -250,7 +248,7 @@ def IntVar(name):
     class _LiteralForm(typing._SpecialForm, _root=True):
 
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             return typing._GenericAlias(self, parameters)
@@ -1289,7 +1287,7 @@ class AnnotatedMeta(typing.GenericMeta):
 
         def __new__(cls, name, bases, namespace, **kwargs):
             if any(b is not object for b in bases):
-                raise TypeError("Cannot subclass " + str(Annotated))
+                raise TypeError(f"Cannot subclass {str(Annotated)}")
             return super().__new__(cls, name, bases, namespace, **kwargs)
 
         @property
@@ -1324,10 +1322,7 @@ def _get_cons(self):
             tree = self._subs_tree()
             while isinstance(tree, tuple) and tree[0] is Annotated:
                 tree = tree[1]
-            if isinstance(tree, tuple):
-                return tree[0]
-            else:
-                return tree
+            return tree[0] if isinstance(tree, tuple) else tree
 
         @typing._tp_cache
         def __getitem__(self, params):
@@ -1453,9 +1448,7 @@ def get_origin(tp):
         if isinstance(tp, (typing._GenericAlias, GenericAlias, _BaseGenericAlias,
                            ParamSpecArgs, ParamSpecKwargs)):
             return tp.__origin__
-        if tp is typing.Generic:
-            return typing.Generic
-        return None
+        return typing.Generic if tp is typing.Generic else None
 
     def get_args(tp):
         """Get type arguments with all substitutions performed.
@@ -1487,7 +1480,7 @@ def get_args(tp):
 elif sys.version_info[:2] >= (3, 9):
     class _TypeAliasForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     @_TypeAliasForm
     def TypeAlias(self, parameters):
@@ -1506,7 +1499,7 @@ def TypeAlias(self, parameters):
 elif sys.version_info[:2] >= (3, 7):
     class _TypeAliasForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     TypeAlias = _TypeAliasForm('TypeAlias',
                                doc="""Special marker indicating that an assignment should
@@ -1800,7 +1793,7 @@ def Concatenate(self, parameters):
 elif sys.version_info[:2] >= (3, 7):
     class _ConcatenateForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             return _concatenate_getitem(self, parameters)
@@ -1861,7 +1854,7 @@ def __getitem__(self, parameters):
 elif sys.version_info[:2] >= (3, 9):
     class _TypeGuardForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     @_TypeGuardForm
     def TypeGuard(self, parameters):
@@ -1914,7 +1907,7 @@ def is_str(val: Union[str, float]):
     class _TypeGuardForm(typing._SpecialForm, _root=True):
 
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
             item = typing._type_check(parameters,
@@ -2026,9 +2019,7 @@ def __getitem__(self, item):
 
         def _eval_type(self, globalns, localns):
             new_tp = typing._eval_type(self.__type__, globalns, localns)
-            if new_tp == self.__type__:
-                return self
-            return type(self)(new_tp, _root=True)
+            return self if new_tp == self.__type__ else type(self)(new_tp, _root=True)
 
         def __repr__(self):
             r = super().__repr__()
@@ -2142,7 +2133,7 @@ def __subclasscheck__(self, cls):
 elif sys.version_info[:2] >= (3, 9):
     class _ExtensionsSpecialForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
     @_ExtensionsSpecialForm
     def Required(self, parameters):
@@ -2184,11 +2175,10 @@ class Movie(TypedDict):
 elif sys.version_info[:2] >= (3, 7):
     class _RequiredForm(typing._SpecialForm, _root=True):
         def __repr__(self):
-            return 'typing_extensions.' + self._name
+            return f'typing_extensions.{self._name}'
 
         def __getitem__(self, parameters):
-            item = typing._type_check(parameters,
-                                      '{} accepts only single type'.format(self._name))
+            item = typing._type_check(parameters, f'{self._name} accepts only single type')
             return typing._GenericAlias(self, (item,))
 
     Required = _RequiredForm(
@@ -2233,22 +2223,22 @@ def __init__(self, tp=None, **kwds):
         def __getitem__(self, item):
             cls = type(self)
             if self.__type__ is None:
-                return cls(typing._type_check(item,
-                           '{} accepts only single type.'.format(cls.__name__[1:])),
-                           _root=True)
-            raise TypeError('{} cannot be further subscripted'
-                            .format(cls.__name__[1:]))
+                return cls(
+                    typing._type_check(
+                        item, f'{cls.__name__[1:]} accepts only single type.'
+                    ),
+                    _root=True,
+                )
+            raise TypeError(f'{cls.__name__[1:]} cannot be further subscripted')
 
         def _eval_type(self, globalns, localns):
             new_tp = typing._eval_type(self.__type__, globalns, localns)
-            if new_tp == self.__type__:
-                return self
-            return type(self)(new_tp, _root=True)
+            return self if new_tp == self.__type__ else type(self)(new_tp, _root=True)
 
         def __repr__(self):
             r = super().__repr__()
             if self.__type__ is not None:
-                r += '[{}]'.format(typing._type_repr(self.__type__))
+                r += f'[{typing._type_repr(self.__type__)}]'
             return r
 
         def __hash__(self):
diff --git a/setuptools/_vendor/zipp.py b/setuptools/_vendor/zipp.py
index 26b723c1fd..d6abd364af 100644
--- a/setuptools/_vendor/zipp.py
+++ b/setuptools/_vendor/zipp.py
@@ -93,7 +93,7 @@ def resolve_dir(self, name):
         as a directory (with the trailing slash).
         """
         names = self._name_set()
-        dirname = name + '/'
+        dirname = f'{name}/'
         dir_match = name not in names and dirname in names
         return dirname if dir_match else name
 
diff --git a/setuptools/archive_util.py b/setuptools/archive_util.py
index 6b8460bd92..ef8e0b2b83 100644
--- a/setuptools/archive_util.py
+++ b/setuptools/archive_util.py
@@ -59,7 +59,7 @@ def unpack_archive(filename, extract_dir, progress_filter=default_filter, driver
         else:
             return
     else:
-        raise UnrecognizedFormat("Not a recognized archive type: %s" % filename)
+        raise UnrecognizedFormat(f"Not a recognized archive type: {filename}")
 
 
 def unpack_directory(filename, extract_dir, progress_filter=default_filter):
@@ -68,7 +68,7 @@ def unpack_directory(filename, extract_dir, progress_filter=default_filter):
     Raises ``UnrecognizedFormat`` if `filename` is not a directory
     """
     if not os.path.isdir(filename):
-        raise UnrecognizedFormat("%s is not a directory" % filename)
+        raise UnrecognizedFormat(f"{filename} is not a directory")
 
     paths = {
         filename: ('', extract_dir),
@@ -98,7 +98,7 @@ def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
     """
 
     if not zipfile.is_zipfile(filename):
-        raise UnrecognizedFormat("%s is not a zip file" % (filename,))
+        raise UnrecognizedFormat(f"{filename} is not a zip file")
 
     with zipfile.ZipFile(filename) as z:
         _unpack_zipfile_obj(z, extract_dir, progress_filter)
@@ -129,8 +129,7 @@ def _unpack_zipfile_obj(zipfile_obj, extract_dir, progress_filter=default_filter
             data = zipfile_obj.read(info.filename)
             with open(target, 'wb') as f:
                 f.write(data)
-        unix_attributes = info.external_attr >> 16
-        if unix_attributes:
+        if unix_attributes := info.external_attr >> 16:
             os.chmod(target, unix_attributes)
 
 
@@ -146,10 +145,9 @@ def _resolve_tar_file_or_dir(tar_obj, tar_member_obj):
             linkpath = posixpath.normpath(linkpath)
         tar_member_obj = tar_obj._getmember(linkpath)
 
-    is_file_or_dir = tar_member_obj is not None and (
+    if is_file_or_dir := tar_member_obj is not None and (
         tar_member_obj.isfile() or tar_member_obj.isdir()
-    )
-    if is_file_or_dir:
+    ):
         return tar_member_obj
 
     raise LookupError('Got unknown file type')
@@ -195,7 +193,7 @@ def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
         tarobj = tarfile.open(filename)
     except tarfile.TarError as e:
         raise UnrecognizedFormat(
-            "%s is not a compressed or uncompressed tar file" % (filename,)
+            f"{filename} is not a compressed or uncompressed tar file"
         ) from e
 
     for member, final_dst in _iter_open_tar(
@@ -203,13 +201,9 @@ def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
         extract_dir,
         progress_filter,
     ):
-        try:
+        with contextlib.suppress(tarfile.ExtractError):
             # XXX Ugh
             tarobj._extract_member(member, final_dst)
-        except tarfile.ExtractError:
-            # chown/chmod/mkfifo/mknode/makedev failed
-            pass
-
     return True
 
 
diff --git a/setuptools/build_meta.py b/setuptools/build_meta.py
index 0a0abfdae0..e71892864a 100644
--- a/setuptools/build_meta.py
+++ b/setuptools/build_meta.py
@@ -254,10 +254,10 @@ def _editable_args(self, config_settings: _ConfigSettings) -> Iterator[str]:
         ['--mode', 'strict']
         """
         cfg = config_settings or {}
-        mode = cfg.get("editable-mode") or cfg.get("editable_mode")
-        if not mode:
+        if mode := cfg.get("editable-mode") or cfg.get("editable_mode"):
+            yield from ["--mode", str(mode)]
+        else:
             return
-        yield from ["--mode", str(mode)]
 
     def _arbitrary_args(self, config_settings: _ConfigSettings) -> Iterator[str]:
         """
@@ -344,7 +344,7 @@ def _find_info_directory(self, metadata_directory: str, suffix: str) -> Path:
         for parent, dirs, _ in os.walk(metadata_directory):
             candidates = [f for f in dirs if f.endswith(suffix)]
 
-            if len(candidates) != 0 or len(dirs) != 1:
+            if candidates or len(dirs) != 1:
                 assert len(candidates) == 1, f"Multiple {suffix} directories found"
                 return Path(parent, candidates[0])
 
diff --git a/setuptools/depends.py b/setuptools/depends.py
index 42907d9bd4..2c87e5e046 100644
--- a/setuptools/depends.py
+++ b/setuptools/depends.py
@@ -32,7 +32,7 @@ def __init__(
     def full_name(self):
         """Return full package/distribution name, w/version"""
         if self.requested_version is not None:
-            return '%s-%s' % (self.name, self.requested_version)
+            return f'{self.name}-{self.requested_version}'
         return self.name
 
     def version_ok(self, version):
@@ -78,9 +78,7 @@ def is_present(self, paths=None):
     def is_current(self, paths=None):
         """Return true if dependency is present and up-to-date on 'paths'"""
         version = self.get_version(paths)
-        if version is None:
-            return False
-        return self.version_ok(str(version))
+        return False if version is None else self.version_ok(str(version))
 
 
 def maybe_close(f):
@@ -89,10 +87,7 @@ def empty():
         yield
         return
 
-    if not f:
-        return empty()
-
-    return contextlib.closing(f)
+    return empty() if not f else contextlib.closing(f)
 
 
 def get_module_constant(module, symbol, default=-1, paths=None):
@@ -154,7 +149,7 @@ def extract_constant(code, symbol, default=-1):
 
         if op == LOAD_CONST:
             const = code.co_consts[arg]
-        elif arg == name_idx and (op == STORE_NAME or op == STORE_GLOBAL):
+        elif arg == name_idx and op in [STORE_NAME, STORE_GLOBAL]:
             return const
         else:
             const = default
diff --git a/setuptools/discovery.py b/setuptools/discovery.py
index 25962863b9..cefc5cb61b 100644
--- a/setuptools/discovery.py
+++ b/setuptools/discovery.py
@@ -331,9 +331,7 @@ def _root_dir(self) -> _Path:
 
     @property
     def _package_dir(self) -> Dict[str, str]:
-        if self.dist.package_dir is None:
-            return {}
-        return self.dist.package_dir
+        return {} if self.dist.package_dir is None else self.dist.package_dir
 
     def __call__(self, force=False, name=True, ignore_ext_modules=False):
         """Automatically discover missing configuration fields
@@ -489,11 +487,10 @@ def analyse_name(self):
 
         log.debug("No `name` configuration, performing automatic discovery")
 
-        name = (
+        if name := (
             self._find_name_single_package_or_module()
             or self._find_name_from_packages()
-        )
-        if name:
+        ):
             self.dist.metadata.name = name
 
     def _find_name_single_package_or_module(self) -> Optional[str]:
@@ -514,8 +511,9 @@ def _find_name_from_packages(self) -> Optional[str]:
         packages = remove_stubs(sorted(self.dist.packages, key=len))
         package_dir = self.dist.package_dir or {}
 
-        parent_pkg = find_parent_package(packages, package_dir, self._root_dir)
-        if parent_pkg:
+        if parent_pkg := find_parent_package(
+            packages, package_dir, self._root_dir
+        ):
             log.debug(f"Common parent package detected, name: {parent_pkg}")
             return parent_pkg
 
diff --git a/setuptools/dist.py b/setuptools/dist.py
index 0d35583dbc..05713ce53d 100644
--- a/setuptools/dist.py
+++ b/setuptools/dist.py
@@ -321,9 +321,7 @@ def _validate_metadata(self):
             for key in vars(self.metadata)
             if getattr(self.metadata, key, None) is not None
         }
-        missing = required - provided
-
-        if missing:
+        if missing := required - provided:
             msg = f"Required package metadata is missing: {missing}"
             raise DistutilsSetupError(msg)
 
@@ -367,9 +365,7 @@ def _finalize_requires(self):
 
         if self.extras_require:
             for extra in self.extras_require.keys():
-                # Setuptools allows a weird "<name>:<env markers> syntax for extras
-                extra = extra.split(':')[0]
-                if extra:
+                if extra := extra.split(':')[0]:
                     self.metadata.provides_extras.add(extra)
 
     def _normalize_requires(self):
@@ -554,7 +550,7 @@ def make_option_lowercase(self, opt, section):
         return lowercase_opt
 
     # FIXME: 'Distribution._set_command_options' is too complex (14)
-    def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
+    def _set_command_options(self, command_obj, option_dict=None):    # noqa: C901
         """
         Set the options for 'command_obj' from 'option_dict'.  Basically
         this means copying elements of a dictionary ('option_dict') to
@@ -571,10 +567,10 @@ def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
             option_dict = self.get_option_dict(command_name)
 
         if DEBUG:
-            self.announce("  setting options for '%s' command:" % command_name)
+            self.announce(f"  setting options for '{command_name}' command:")
         for option, (source, value) in option_dict.items():
             if DEBUG:
-                self.announce("    %s = %s (from %s)" % (option, value, source))
+                self.announce(f"    {option} = {value} (from {source})")
             try:
                 bool_opts = [translate_longopt(o) for o in command_obj.boolean_options]
             except AttributeError:
@@ -594,8 +590,7 @@ def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
                     setattr(command_obj, option, value)
                 else:
                     raise DistutilsOptionError(
-                        "error in %s: command '%s' has no such option '%s'"
-                        % (source, command_name, option)
+                        f"error in {source}: command '{command_name}' has no such option '{option}'"
                     )
             except ValueError as e:
                 raise DistutilsOptionError(e) from e
@@ -742,8 +737,7 @@ def include(self, **attrs):
         handle whatever special inclusion logic is needed.
         """
         for k, v in attrs.items():
-            include = getattr(self, '_include_' + k, None)
-            if include:
+            if include := getattr(self, f'_include_{k}', None):
                 include(v)
             else:
                 self._include_misc(k, v)
@@ -751,7 +745,7 @@ def include(self, **attrs):
     def exclude_package(self, package):
         """Remove packages, modules, and extensions in named package"""
 
-        pfx = package + '.'
+        pfx = f'{package}.'
         if self.packages:
             self.packages = [
                 p for p in self.packages if p != package and not p.startswith(pfx)
@@ -772,7 +766,7 @@ def exclude_package(self, package):
     def has_contents_for(self, package):
         """Return true if 'exclude_package(package)' would do something"""
 
-        pfx = package + '.'
+        pfx = f'{package}.'
 
         for p in self.iter_distribution_names():
             if p == package or p.startswith(pfx):
@@ -787,10 +781,10 @@ def _exclude_misc(self, name, value):
         try:
             old = getattr(self, name)
         except AttributeError as e:
-            raise DistutilsSetupError("%s: No such distribution setting" % name) from e
+            raise DistutilsSetupError(f"{name}: No such distribution setting") from e
         if old is not None and not isinstance(old, sequence):
             raise DistutilsSetupError(
-                name + ": this setting cannot be changed via include/exclude"
+                f"{name}: this setting cannot be changed via include/exclude"
             )
         elif old:
             setattr(self, name, [item for item in old if item not in value])
@@ -803,12 +797,12 @@ def _include_misc(self, name, value):
         try:
             old = getattr(self, name)
         except AttributeError as e:
-            raise DistutilsSetupError("%s: No such distribution setting" % name) from e
+            raise DistutilsSetupError(f"{name}: No such distribution setting") from e
         if old is None:
             setattr(self, name, value)
         elif not isinstance(old, sequence):
             raise DistutilsSetupError(
-                name + ": this setting cannot be changed via include/exclude"
+                f"{name}: this setting cannot be changed via include/exclude"
             )
         else:
             new = [item for item in value if item not in old]
@@ -831,8 +825,7 @@ def exclude(self, **attrs):
         handle whatever special exclusion logic is needed.
         """
         for k, v in attrs.items():
-            exclude = getattr(self, '_exclude_' + k, None)
-            if exclude:
+            if exclude := getattr(self, f'_exclude_{k}', None):
                 exclude(v)
             else:
                 self._exclude_misc(k, v)
diff --git a/setuptools/glob.py b/setuptools/glob.py
index a184c0b643..4f806c4d9b 100644
--- a/setuptools/glob.py
+++ b/setuptools/glob.py
@@ -50,13 +50,13 @@ def _iglob(pathname, recursive):
     glob_in_dir = glob2 if recursive and _isrecursive(basename) else glob1
 
     if not has_magic(pathname):
-        if basename:
-            if os.path.lexists(pathname):
-                yield pathname
-        else:
-            # Patterns ending with a slash should match only directories
-            if os.path.isdir(dirname):
-                yield pathname
+        if (
+            basename
+            and os.path.lexists(pathname)
+            or not basename
+            and os.path.isdir(dirname)
+        ):
+            yield pathname
         return
 
     if not dirname:
@@ -95,14 +95,11 @@ def glob1(dirname, pattern):
 
 
 def glob0(dirname, basename):
-    if not basename:
-        # `os.path.split()` returns an empty basename for paths ending with a
-        # directory separator.  'q*x/' should match only directories.
-        if os.path.isdir(dirname):
-            return [basename]
-    else:
+    if basename:
         if os.path.lexists(os.path.join(dirname, basename)):
             return [basename]
+    elif os.path.isdir(dirname):
+        return [basename]
     return []
 
 
@@ -147,10 +144,7 @@ def has_magic(s):
 
 
 def _isrecursive(pattern):
-    if isinstance(pattern, bytes):
-        return pattern == b'**'
-    else:
-        return pattern == '**'
+    return pattern == b'**' if isinstance(pattern, bytes) else pattern == '**'
 
 
 def escape(pathname):
diff --git a/setuptools/installer.py b/setuptools/installer.py
index e83f959a1b..c308785c0e 100644
--- a/setuptools/installer.py
+++ b/setuptools/installer.py
@@ -60,12 +60,10 @@ def _fetch_build_egg_no_warn(dist, req):  # noqa: C901  # is too complex (16)  #
             'when using pip to install requirements.'
         )
     quiet = 'PIP_QUIET' not in os.environ and 'PIP_VERBOSE' not in os.environ
-    if 'PIP_INDEX_URL' in os.environ:
+    if 'PIP_INDEX_URL' in os.environ or 'index_url' not in opts:
         index_url = None
-    elif 'index_url' in opts:
-        index_url = opts['index_url'][1]
     else:
-        index_url = None
+        index_url = opts['index_url'][1]
     find_links = (
         _fixup_find_links(opts['find_links'][1])[:] if 'find_links' in opts else []
     )
diff --git a/setuptools/msvc.py b/setuptools/msvc.py
index aa69db5810..9ae3d65bc9 100644
--- a/setuptools/msvc.py
+++ b/setuptools/msvc.py
@@ -186,12 +186,12 @@ def _msvc14_get_vc_env(plat_spec):
 
     try:
         out = subprocess.check_output(
-            'cmd /u /c "{}" {} && set'.format(vcvarsall, plat_spec),
+            f'cmd /u /c "{vcvarsall}" {plat_spec} && set',
             stderr=subprocess.STDOUT,
         ).decode('utf-16le', errors='replace')
     except subprocess.CalledProcessError as exc:
         raise distutils.errors.DistutilsPlatformError(
-            "Error executing {}".format(exc.cmd)
+            f"Error executing {exc.cmd}"
         ) from exc
 
     env = {
@@ -837,7 +837,7 @@ def WindowsSdkLastVersion(self):
         return self._use_last_dir_name(join(self.WindowsSdkDir, 'lib'))
 
     @property  # noqa: C901
-    def WindowsSdkDir(self):  # noqa: C901  # is too complex (12)  # FIXME
+    def WindowsSdkDir(self):    # noqa: C901  # is too complex (12)  # FIXME
         """
         Microsoft Windows SDK directory.
 
@@ -849,15 +849,14 @@ def WindowsSdkDir(self):  # noqa: C901  # is too complex (12)  # FIXME
         sdkdir = ''
         for ver in self.WindowsSdkVersion:
             # Try to get it from registry
-            loc = join(self.ri.windows_sdk, 'v%s' % ver)
+            loc = join(self.ri.windows_sdk, f'v{ver}')
             sdkdir = self.ri.lookup(loc, 'installationfolder')
             if sdkdir:
                 break
         if not sdkdir or not isdir(sdkdir):
             # Try to get "VC++ for Python" version from registry
             path = join(self.ri.vc_for_python, '%0.1f' % self.vc_ver)
-            install_base = self.ri.lookup(path, 'installdir')
-            if install_base:
+            if install_base := self.ri.lookup(path, 'installdir'):
                 sdkdir = join(install_base, 'WinSDK')
         if not sdkdir or not isdir(sdkdir):
             # If fail, use default new path
@@ -895,7 +894,7 @@ def WindowsSDKExecutablePath(self):
             arch = ''
         else:
             netfxver = 40
-            hidex86 = True if self.vs_ver <= 12.0 else False
+            hidex86 = self.vs_ver <= 12.0
             arch = self.pi.current_dir(x64=True, hidex86=hidex86)
         fx = 'WinSDK-NetFx%dTools%s' % (netfxver, arch.replace('\\', '-'))
 
@@ -906,12 +905,11 @@ def WindowsSDKExecutablePath(self):
                 regpaths += [join(self.ri.netfx_sdk, ver, fx)]
 
         for ver in self.WindowsSdkVersion:
-            regpaths += [join(self.ri.windows_sdk, 'v%sA' % ver, fx)]
+            regpaths += [join(self.ri.windows_sdk, f'v{ver}A', fx)]
 
         # Return installation folder from the more recent path
         for path in regpaths:
-            execpath = self.ri.lookup(path, 'installationfolder')
-            if execpath:
+            if execpath := self.ri.lookup(path, 'installationfolder'):
                 return execpath
 
     @property
@@ -942,8 +940,9 @@ def UniversalCRTSdkDir(self):
 
         # Find path of the more recent Kit
         for ver in vers:
-            sdkdir = self.ri.lookup(self.ri.windows_kits_roots, 'kitsroot%s' % ver)
-            if sdkdir:
+            if sdkdir := self.ri.lookup(
+                self.ri.windows_kits_roots, f'kitsroot{ver}'
+            ):
                 return sdkdir or ''
 
     @property
@@ -1209,7 +1208,7 @@ def VCLibraries(self):
             arch_subdir = self.pi.target_dir(x64=True)
         else:
             arch_subdir = self.pi.target_dir(hidex86=True)
-        paths = ['Lib%s' % arch_subdir, r'ATLMFC\Lib%s' % arch_subdir]
+        paths = [f'Lib{arch_subdir}', r'ATLMFC\Lib%s' % arch_subdir]
 
         if self.vs_ver >= 14.0:
             paths += [r'Lib\store%s' % arch_subdir]
@@ -1243,10 +1242,9 @@ def VCTools(self):
         si = self.si
         tools = [join(si.VCInstallDir, 'VCPackages')]
 
-        forcex86 = True if self.vs_ver <= 10.0 else False
-        arch_subdir = self.pi.cross_dir(forcex86)
-        if arch_subdir:
-            tools += [join(si.VCInstallDir, 'Bin%s' % arch_subdir)]
+        forcex86 = self.vs_ver <= 10.0
+        if arch_subdir := self.pi.cross_dir(forcex86):
+            tools += [join(si.VCInstallDir, f'Bin{arch_subdir}')]
 
         if self.vs_ver == 14.0:
             path = 'Bin%s' % self.pi.current_dir(hidex86=True)
@@ -1280,13 +1278,13 @@ def OSLibraries(self):
         """
         if self.vs_ver <= 10.0:
             arch_subdir = self.pi.target_dir(hidex86=True, x64=True)
-            return [join(self.si.WindowsSdkDir, 'Lib%s' % arch_subdir)]
+            return [join(self.si.WindowsSdkDir, f'Lib{arch_subdir}')]
 
         else:
             arch_subdir = self.pi.target_dir(x64=True)
             lib = join(self.si.WindowsSdkDir, 'lib')
             libver = self._sdk_subdir
-            return [join(lib, '%sum%s' % (libver, arch_subdir))]
+            return [join(lib, f'{libver}um{arch_subdir}')]
 
     @property
     def OSIncludes(self):
@@ -1303,16 +1301,12 @@ def OSIncludes(self):
         if self.vs_ver <= 10.0:
             return [include, join(include, 'gl')]
 
-        else:
-            if self.vs_ver >= 14.0:
-                sdkver = self._sdk_subdir
-            else:
-                sdkver = ''
-            return [
-                join(include, '%sshared' % sdkver),
-                join(include, '%sum' % sdkver),
-                join(include, '%swinrt' % sdkver),
-            ]
+        sdkver = self._sdk_subdir if self.vs_ver >= 14.0 else ''
+        return [
+            join(include, f'{sdkver}shared'),
+            join(include, f'{sdkver}um'),
+            join(include, f'{sdkver}winrt'),
+        ]
 
     @property
     def OSLibpath(self):
@@ -1379,7 +1373,7 @@ def _sdk_tools(self):
 
         if not self.pi.current_is_x86():
             arch_subdir = self.pi.current_dir(x64=True)
-            path = 'Bin%s' % arch_subdir
+            path = f'Bin{arch_subdir}'
             yield join(self.si.WindowsSdkDir, path)
 
         if self.vs_ver in (10.0, 11.0):
@@ -1394,7 +1388,7 @@ def _sdk_tools(self):
             path = join(self.si.WindowsSdkDir, 'Bin')
             arch_subdir = self.pi.current_dir(x64=True)
             sdkver = self.si.WindowsSdkLastVersion
-            yield join(path, '%s%s' % (sdkver, arch_subdir))
+            yield join(path, f'{sdkver}{arch_subdir}')
 
         if self.si.WindowsSDKExecutablePath:
             yield self.si.WindowsSDKExecutablePath
@@ -1422,10 +1416,7 @@ def SdkSetup(self):
         list of str
             paths
         """
-        if self.vs_ver > 9.0:
-            return []
-
-        return [join(self.si.WindowsSdkDir, 'Setup')]
+        return [] if self.vs_ver > 9.0 else [join(self.si.WindowsSdkDir, 'Setup')]
 
     @property
     def FxTools(self):
@@ -1556,7 +1547,7 @@ def UCRTLibraries(self):
         arch_subdir = self.pi.target_dir(x64=True)
         lib = join(self.si.UniversalCRTSdkDir, 'lib')
         ucrtver = self._ucrt_subdir
-        return [join(lib, '%sucrt%s' % (ucrtver, arch_subdir))]
+        return [join(lib, f'{ucrtver}ucrt{arch_subdir}')]
 
     @property
     def UCRTIncludes(self):
@@ -1572,7 +1563,7 @@ def UCRTIncludes(self):
             return []
 
         include = join(self.si.UniversalCRTSdkDir, 'include')
-        return [join(include, '%sucrt' % self._ucrt_subdir)]
+        return [join(include, f'{self._ucrt_subdir}ucrt')]
 
     @property
     def _ucrt_subdir(self):
@@ -1597,10 +1588,7 @@ def FSharp(self):
         list of str
             paths
         """
-        if 11.0 > self.vs_ver > 12.0:
-            return []
-
-        return [self.si.FSharpInstallDir]
+        return [] if 11.0 > self.vs_ver > 12.0 else [self.si.FSharpInstallDir]
 
     @property
     def VCRuntimeRedist(self):
@@ -1728,7 +1716,7 @@ def _build_paths(self, name, spec_path_lists, exists):
         paths = itertools.chain(spec_paths, env_paths)
         extant_paths = list(filter(isdir, paths)) if exists else paths
         if not extant_paths:
-            msg = "%s environment variable is empty" % name.upper()
+            msg = f"{name.upper()} environment variable is empty"
             raise distutils.errors.DistutilsPlatformError(msg)
         unique_paths = unique_everseen(extant_paths)
         return pathsep.join(unique_paths)
diff --git a/setuptools/package_index.py b/setuptools/package_index.py
index 1e535bc747..fa7f95be41 100644
--- a/setuptools/package_index.py
+++ b/setuptools/package_index.py
@@ -114,8 +114,7 @@ def distros_for_url(url, metadata=None):
     base, fragment = egg_info_for_url(url)
     yield from distros_for_location(url, base, metadata)
     if fragment:
-        match = EGG_FRAGMENT.match(fragment)
-        if match:
+        if match := EGG_FRAGMENT.match(fragment):
             yield from interpret_distro_name(
                 url, match.group(1), metadata, precedence=CHECKOUT_DIST
             )
@@ -230,8 +229,7 @@ def find_external_links(url, page):
     for tag in ("<th>Home Page", "<th>Download URL"):
         pos = page.find(tag)
         if pos != -1:
-            match = HREF.search(page, pos)
-            if match:
+            if match := HREF.search(page, pos):
                 yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
 
 
@@ -278,9 +276,7 @@ def from_url(cls, url):
         if not fragment:
             return ContentChecker()
         match = cls.pattern.search(fragment)
-        if not match:
-            return ContentChecker()
-        return cls(**match.groupdict())
+        return ContentChecker() if not match else cls(**match.groupdict())
 
     def feed(self, block):
         self.hash.update(block)
@@ -323,7 +319,7 @@ def add(self, dist):
         return super().add(dist)
 
     # FIXME: 'PackageIndex.process_url' is too complex (14)
-    def process_url(self, url, retrieve=False):  # noqa: C901
+    def process_url(self, url, retrieve=False):    # noqa: C901
         """Evaluate a URL as a possible download, and maybe retrieve it"""
         if url in self.scanned_urls and not retrieve:
             return
@@ -353,7 +349,7 @@ def process_url(self, url, retrieve=False):  # noqa: C901
         if f is None:
             return
         if isinstance(f, urllib.error.HTTPError) and f.code == 401:
-            self.info("Authentication error: %s" % f.msg)
+            self.info(f"Authentication error: {f.msg}")
         self.fetched_urls[f.url] = True
         if 'html' not in f.headers.get('content-type', '').lower():
             f.close()  # not html, we can't process it
@@ -387,8 +383,7 @@ def process_filename(self, fn, nested=False):
             for item in os.listdir(path):
                 self.process_filename(os.path.join(path, item), True)
 
-        dists = distros_for_filename(fn)
-        if dists:
+        if dists := distros_for_filename(fn):
             self.debug("Found: %s", fn)
             list(map(self.add, dists))
 
@@ -469,7 +464,7 @@ def process_index(self, url, page):
             base, frag = egg_info_for_url(new_url)
             if base.endswith('.py') and not frag:
                 if ver:
-                    new_url += '#egg=%s-%s' % (pkg, ver)
+                    new_url += f'#egg={pkg}-{ver}'
                 else:
                     self.need_version_info(url)
             self.scan_url(new_url)
@@ -581,8 +576,7 @@ def download(self, spec, tmpdir):
         raised if a problem occurs during downloading.
         """
         if not isinstance(spec, Requirement):
-            scheme = URL_SCHEME(spec)
-            if scheme:
+            if scheme := URL_SCHEME(spec):
                 # It's a url, download it to tmpdir
                 found = self._download_url(scheme.group(1), spec, tmpdir)
                 base, fragment = egg_info_for_url(spec)
@@ -684,9 +678,7 @@ def fetch(self, requirement, tmpdir, force_scan=False, source=False):
         object.
         """
         dist = self.fetch_distribution(requirement, tmpdir, force_scan, source)
-        if dist is not None:
-            return dist.location
-        return None
+        return dist.location if dist is not None else None
 
     def gen_setup(self, filename, fragment, tmpdir):
         match = EGG_FRAGMENT.match(fragment)
@@ -744,9 +736,7 @@ def _download_to(self, url, filename):
             checker = HashChecker.from_url(url)
             fp = self.open_url(url)
             if isinstance(fp, urllib.error.HTTPError):
-                raise DistutilsError(
-                    "Can't download %s: %s %s" % (url, fp.code, fp.msg)
-                )
+                raise DistutilsError(f"Can't download {url}: {fp.code} {fp.msg}")
             headers = fp.info()
             blocknum = 0
             bs = self.dl_blocksize
@@ -758,8 +748,7 @@ def _download_to(self, url, filename):
                 self.reporthook(url, filename, blocknum, bs, size)
             with open(filename, 'wb') as tfp:
                 while True:
-                    block = fp.read(bs)
-                    if block:
+                    if block := fp.read(bs):
                         checker.feed(block)
                         tfp.write(block)
                         blocknum += 1
@@ -786,16 +775,14 @@ def open_url(self, url, warning=None):  # noqa: C901  # is too complex (12)
             if warning:
                 self.warn(warning, msg)
             else:
-                raise DistutilsError('%s %s' % (url, msg)) from v
+                raise DistutilsError(f'{url} {msg}') from v
         except urllib.error.HTTPError as v:
             return v
         except urllib.error.URLError as v:
             if warning:
                 self.warn(warning, v.reason)
             else:
-                raise DistutilsError(
-                    "Download error for %s: %s" % (url, v.reason)
-                ) from v
+                raise DistutilsError(f"Download error for {url}: {v.reason}") from v
         except http.client.BadStatusLine as v:
             if warning:
                 self.warn(warning, v.line)
@@ -808,7 +795,7 @@ def open_url(self, url, warning=None):  # noqa: C901  # is too complex (12)
             if warning:
                 self.warn(warning, v)
             else:
-                raise DistutilsError("Download error for %s: %s" % (url, v)) from v
+                raise DistutilsError(f"Download error for {url}: {v}") from v
 
     def _download_url(self, scheme, url, tmpdir):
         # Determine download filename
@@ -879,17 +866,11 @@ def _download_git(self, url, filename):
         url, rev = self._vcs_split_rev_from_url(url, pop_prefix=True)
 
         self.info("Doing git clone from %s to %s", url, filename)
-        os.system("git clone --quiet %s %s" % (url, filename))
+        os.system(f"git clone --quiet {url} {filename}")
 
         if rev is not None:
             self.info("Checking out %s", rev)
-            os.system(
-                "git -C %s checkout --quiet %s"
-                % (
-                    filename,
-                    rev,
-                )
-            )
+            os.system(f"git -C {filename} checkout --quiet {rev}")
 
         return filename
 
@@ -898,17 +879,11 @@ def _download_hg(self, url, filename):
         url, rev = self._vcs_split_rev_from_url(url, pop_prefix=True)
 
         self.info("Doing hg clone from %s to %s", url, filename)
-        os.system("hg clone --quiet %s %s" % (url, filename))
+        os.system(f"hg clone --quiet {url} {filename}")
 
         if rev is not None:
             self.info("Updating to %s", rev)
-            os.system(
-                "hg --cwd %s up -C -r %s -q"
-                % (
-                    filename,
-                    rev,
-                )
-            )
+            os.system(f"hg --cwd {filename} up -C -r {rev} -q")
 
         return filename
 
@@ -1053,14 +1028,13 @@ def open_with_auth(url, opener=urllib.request.urlopen):
         auth = None
 
     if not auth:
-        cred = PyPIConfig().find_credential(url)
-        if cred:
+        if cred := PyPIConfig().find_credential(url):
             auth = str(cred)
             info = cred.username, url
             log.info('Authenticating as %s for %s (from .pypirc)', *info)
 
     if auth:
-        auth = "Basic " + _encode_auth(auth)
+        auth = f"Basic {_encode_auth(auth)}"
         parts = scheme, address, path, params, query, frag
         new_url = urllib.parse.urlunparse(parts)
         request = urllib.request.Request(new_url)
diff --git a/setuptools/sandbox.py b/setuptools/sandbox.py
index 757074166a..ec15697e2e 100644
--- a/setuptools/sandbox.py
+++ b/setuptools/sandbox.py
@@ -369,9 +369,7 @@ def _mk_query(name):
 
         def wrap(self, *args, **kw):
             retval = original(*args, **kw)
-            if self._active:
-                return self._remap_output(name, retval)
-            return retval
+            return self._remap_output(name, retval) if self._active else retval
 
         return wrap
 
@@ -393,16 +391,12 @@ def _remap_output(self, operation, path):
 
     def _remap_pair(self, operation, src, dst, *args, **kw):
         """Called for path pairs like rename, link, and symlink operations"""
-        return (
-            self._remap_input(operation + '-from', src, *args, **kw),
-            self._remap_input(operation + '-to', dst, *args, **kw),
-        )
+        return self._remap_input(
+            f'{operation}-from', src, *args, **kw
+        ), self._remap_input(f'{operation}-to', dst, *args, **kw)
 
 
-if hasattr(os, 'devnull'):
-    _EXCEPTIONS = [os.devnull]
-else:
-    _EXCEPTIONS = []
+_EXCEPTIONS = [os.devnull] if hasattr(os, 'devnull') else []
 
 
 class DirectorySandbox(AbstractSandbox):
diff --git a/setuptools/warnings.py b/setuptools/warnings.py
index b3e252ca57..7f6026e626 100644
--- a/setuptools/warnings.py
+++ b/setuptools/warnings.py
@@ -74,8 +74,7 @@ def _format(
             ),
             (f"\nSee {see_url} for details." if see_url else None),
         ]
-        parts = [x for x in possible_parts if x]
-        if parts:
+        if parts := [x for x in possible_parts if x]:
             body = indent(_TEMPLATE.format(details="\n".join(parts)), _INDENT)
             return "\n".join([summary, "!!\n", body, "\n!!"])
         return summary
diff --git a/setuptools/wheel.py b/setuptools/wheel.py
index 9861b5cf1c..ddce9bdc50 100644
--- a/setuptools/wheel.py
+++ b/setuptools/wheel.py
@@ -120,9 +120,9 @@ def install_as_egg(self, destination_eggdir):
             self._install_as_egg(destination_eggdir, zf)
 
     def _install_as_egg(self, destination_eggdir, zf):
-        dist_basename = '%s-%s' % (self.project_name, self.version)
+        dist_basename = f'{self.project_name}-{self.version}'
         dist_info = self.get_dist_info(zf)
-        dist_data = '%s.data' % dist_basename
+        dist_data = f'{dist_basename}.data'
         egg_info = os.path.join(destination_eggdir, 'EGG-INFO')
 
         self._convert_metadata(zf, destination_eggdir, dist_info, egg_info)
@@ -143,7 +143,7 @@ def get_metadata(name):
         wheel_version = parse_version(wheel_metadata.get('Wheel-Version'))
         wheel_v1 = parse_version('1.0') <= wheel_version < parse_version('2.0dev0')
         if not wheel_v1:
-            raise ValueError('unsupported wheel format version: %s' % wheel_version)
+            raise ValueError(f'unsupported wheel format version: {wheel_version}')
         # Extract to target directory.
         _unpack_zipfile_obj(zf, destination_eggdir)
         # Convert metadata.