Minimally migrate to pyproject.toml

pyproject.toml

@@ -1,12 +1,50 @@
 [build-system]
-# Must be kept in sync with `setup_requirements` in `setup.py`
+# Must be kept in sync with `dependencies` below
 requires = [
-    "setuptools>=40.8.0",
+    "setuptools>=61.0.0",
     "wheel",
     "cffi>=1.4.1; platform_python_implementation != 'PyPy'",
 ]
 build-backend = "setuptools.build_meta"
 
+[project]
+dynamic = ["readme"]
+
+name = "PyNaCl"
+# Must be kept in sync with `src/nacl/__init__.py`
+version = "1.6.0.dev1"
+authors = [
+    {name = "The PyNaCl developers", email = "[email protected]"}
+]
+description = "Python binding to the Networking and Cryptography (NaCl) library"
+license = {text = "Apache-2.0"}
+classifiers = [
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.6",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+]
+requires-python = ">=3.6"
+dependencies = [
+    "cffi>=1.4.1; platform_python_implementation != 'PyPy'"
+]
+
+[project.optional-dependencies]
+tests = [
+    "pytest>=3.2.1,!=3.3.0",
+    "hypothesis>=3.27.0",
+]
+docs = [
+    "sphinx<7",
+    "sphinx_rtd_theme"
+]
+
 [tool.black]
 line-length = 79
 target-version = ["py36"]

setup.py

@@ -30,24 +30,12 @@
 from setuptools.command.build_ext import build_ext as _build_ext
 
 
-requirements = []
-setup_requirements = ["setuptools"]
-test_requirements = [
-    "pytest>=3.2.1,!=3.3.0",
-    "hypothesis>=3.27.0",
-]
-docs_requirements = ["sphinx<7", "sphinx_rtd_theme"]
-
-
 if platform.python_implementation() == "PyPy":
     if sys.pypy_version_info < (2, 6):
         raise RuntimeError(
             "PyNaCl is not compatible with PyPy < 2.6. Please "
             "upgrade PyPy to use this library."
         )
-else:
-    requirements.append("cffi>=1.4.1")
-    setup_requirements.append("cffi>=1.4.1")
 
 
 def here(*paths):
@@ -194,19 +182,8 @@ def run(self):
 
 
 setup(
-    name=nacl.__title__,
-    version=nacl.__version__,
-    description=nacl.__summary__,
     long_description="\n".join((README, INSTALL, CHANGELOG)),
     url=nacl.__uri__,
-    license=nacl.__license__,
-    author=nacl.__author__,
-    author_email=nacl.__email__,
-    python_requires=">=3.6",
-    setup_requires=setup_requirements,
-    install_requires=requirements,
-    extras_require={"tests": test_requirements, "docs": docs_requirements},
-    tests_require=test_requirements,
     package_dir={"": "src"},
     packages=["nacl", "nacl.pwhash", "nacl.bindings"],
     package_data={"nacl": ["py.typed"]},
@@ -215,16 +192,4 @@ def run(self):
     cmdclass={"build_clib": build_clib, "build_ext": build_ext},
     distclass=Distribution,
     zip_safe=False,
-    classifiers=[
-        "Programming Language :: Python :: Implementation :: CPython",
-        "Programming Language :: Python :: Implementation :: PyPy",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-        "Programming Language :: Python :: 3.12",
-    ],
 )

src/nacl/__init__.py

@@ -14,26 +14,12 @@
 
 
 __all__ = [
-    "__title__",
-    "__summary__",
     "__uri__",
     "__version__",
-    "__author__",
     "__email__",
-    "__license__",
-    "__copyright__",
 ]
 
-__title__ = "PyNaCl"
-__summary__ = (
-    "Python binding to the Networking and Cryptography (NaCl) library"
-)
 __uri__ = "https://github.com/pyca/pynacl/"
 
+# Must be kept in sync with `pyproject.toml`
 __version__ = "1.6.0.dev1"
-
-__author__ = "The PyNaCl developers"
-__email__ = "[email protected]"
-
-__license__ = "Apache License 2.0"
-__copyright__ = "Copyright 2013-2018 {}".format(__author__)