diff --git a/setup_cfg_fmt.py b/setup_cfg_fmt.py
index 19ebf6e..25fa5de 100644
--- a/setup_cfg_fmt.py
+++ b/setup_cfg_fmt.py
@@ -174,7 +174,7 @@ def _tox_envlist(setup_cfg: str) -> Generator[str, None, None]:
 TOX_ENV = re.compile(r'py3(\d+)')
 
 
-def _python_requires(setup_cfg: str, *, min_py_version: tuple[int, int] | None) -> str :
+def _python_requires(setup_cfg: str, *, min_py_version: tuple[int, int] | None) -> str:
     cfg = NoTransformConfigParser()
     cfg.read(setup_cfg)
     current_value = cfg.get('options', 'python_requires', fallback='')
diff --git a/tests/setup_cfg_fmt_test.py b/tests/setup_cfg_fmt_test.py
index a205ef5..7a35c0f 100644
--- a/tests/setup_cfg_fmt_test.py
+++ b/tests/setup_cfg_fmt_test.py
@@ -148,17 +148,17 @@ def test_rewrite_requires(which, input_tpl, expected, tmpdir):
             'name = pkg\n',
 
             '[metadata]\n'
- 'name = pkg\n'
- 'version = 1.0\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
- '\n'
- '[bdist_wheel]\n'
- 'universal = true\n',
+            'name = pkg\n'
+            'version = 1.0\n'
+            'classifiers =\n'
+            '    Programming Language :: Python :: 3\n'
+            '    Programming Language :: Python :: 3 :: Only\n'
+            '\n'
+            '[options]\n'
+            'python_requires = >=3.7\n'
+            '\n'
+            '[bdist_wheel]\n'
+            'universal = true\n',
 
             id='orders fields and sections',
         ),
@@ -174,20 +174,20 @@ def test_rewrite_requires(which, input_tpl, expected, tmpdir):
             'where = src\n',
 
             '[metadata]\n'
- 'name = pkg\n'
- 'version = 1.0\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
- '\n'
- '[options.packages.find]\n'
- 'where = src\n'
- '\n'
- '[bdist_wheel]\n'
- 'universal = true\n',
+            'name = pkg\n'
+            'version = 1.0\n'
+            'classifiers =\n'
+            '    Programming Language :: Python :: 3\n'
+            '    Programming Language :: Python :: 3 :: Only\n'
+            '\n'
+            '[options]\n'
+            'python_requires = >=3.7\n'
+            '\n'
+            '[options.packages.find]\n'
+            'where = src\n'
+            '\n'
+            '[bdist_wheel]\n'
+            'universal = true\n',
 
             id='orders sections (options.packages.find)',
         ),
@@ -217,16 +217,16 @@ def test_rewrite_requires(which, input_tpl, expected, tmpdir):
             '    License :: OSI Approved :: MIT License\n'
             '    Programming Language :: Python :: 3 :: Only\n',
 
-'[metadata]\n'
- 'name = pkg\n'
- 'version = 1.0\n'
- 'classifiers =\n'
- '    License :: OSI Approved :: MIT License\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n',
+            '[metadata]\n'
+            'name = pkg\n'
+            'version = 1.0\n'
+            'classifiers =\n'
+            '    License :: OSI Approved :: MIT License\n'
+            '    Programming Language :: Python :: 3\n'
+            '    Programming Language :: Python :: 3 :: Only\n'
+            '\n'
+            '[options]\n'
+            'python_requires = >=3.7\n',
 
             id='sorts classifiers',
         ),
@@ -240,18 +240,18 @@ def test_rewrite_requires(which, input_tpl, expected, tmpdir):
             'author = john\n',
 
             '[metadata]\n'
- 'name = pkg\n'
- 'author = john\n'
- 'author_email = john@example.com\n'
- 'maintainer = jane\n'
- 'maintainer_email = jane@example.com\n'
- 'license = foo\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n',
+            'name = pkg\n'
+            'author = john\n'
+            'author_email = john@example.com\n'
+            'maintainer = jane\n'
+            'maintainer_email = jane@example.com\n'
+            'license = foo\n'
+            'classifiers =\n'
+            '    Programming Language :: Python :: 3\n'
+            '    Programming Language :: Python :: 3 :: Only\n'
+            '\n'
+            '[options]\n'
+            'python_requires = >=3.7\n',
 
             id='orders authors and maintainers',
         ),
@@ -262,15 +262,15 @@ def test_rewrite_requires(which, input_tpl, expected, tmpdir):
             'maintainer-email = jane@example.com\n',
 
             '[metadata]\n'
- 'name = pkg\n'
- 'author_email = john@example.com\n'
- 'maintainer_email = jane@example.com\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n',
+            'name = pkg\n'
+            'author_email = john@example.com\n'
+            'maintainer_email = jane@example.com\n'
+            'classifiers =\n'
+            '    Programming Language :: Python :: 3\n'
+            '    Programming Language :: Python :: 3 :: Only\n'
+            '\n'
+            '[options]\n'
+            'python_requires = >=3.7\n',
 
             id='normalize dashes to underscores in keys',
         ),
@@ -492,16 +492,13 @@ def test_license_does_not_set_when_licenses_matches(tmpdir):
         '\n' \
         '[options]\n' \
         'python_requires = >=3.7\n'
-    
+
     tmpdir.join('LICENSE').write('COPYRIGHT (C) 2019 ME')
     setup_cfg = tmpdir.join('setup.cfg')
     setup_cfg.write(s)
 
     assert not main((str(setup_cfg),))
 
-  
-    
-
 
 def test_license_does_set_when_licenses_mismatches(tmpdir):
     tmpdir.join('LICENSE').write('COPYRIGHT (C) 2019 ME')
@@ -521,11 +518,11 @@ def test_license_does_set_when_licenses_mismatches(tmpdir):
         'version = 1.0\n'
         'license_file = LICENSE\n'
         'license_files = LICENSES\n'
-        'classifiers =\n' 
-        '    Programming Language :: Python :: 3\n' 
-        '    Programming Language :: Python :: 3 :: Only\n' 
-        '\n' 
-        '[options]\n' 
+        'classifiers =\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '\n'
+        '[options]\n'
         'python_requires = >=3.7\n'
     )
 
@@ -546,17 +543,17 @@ def test_rewrite_sets_license_type_and_classifier(tmpdir):
 
     assert setup_cfg.read() == (
         '[metadata]\n'
- 'name = pkg\n'
- 'version = 1.0\n'
- 'license = MIT\n'
- 'license_file = LICENSE\n'
- 'classifiers =\n'
- '    License :: OSI Approved :: MIT License\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
+        'name = pkg\n'
+        'version = 1.0\n'
+        'license = MIT\n'
+        'license_file = LICENSE\n'
+        'classifiers =\n'
+        '    License :: OSI Approved :: MIT License\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '\n'
+        '[options]\n'
+        'python_requires = >=3.7\n'
     )
 
 
@@ -599,12 +596,12 @@ def test_rewrite_identifies_license(tmpdir):
         'license = Zlib\n'
         'license_file = LICENSE\n'
         'classifiers =\n'
- '    License :: OSI Approved :: zlib/libpng License\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
+        '    License :: OSI Approved :: zlib/libpng License\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '\n'
+        '[options]\n'
+        'python_requires = >=3.7\n'
     )
 
 
@@ -676,9 +673,9 @@ def test_strips_empty_options_and_sections(tmpdir, section, expected):
         '[metadata]\n'
         'name = pkg\n'
         'version = 1.0\n'
-'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
+        'classifiers =\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
         f'{section}',
     )
 
@@ -687,9 +684,9 @@ def test_strips_empty_options_and_sections(tmpdir, section, expected):
         '[metadata]\n'
         'name = pkg\n'
         'version = 1.0\n'
-'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
+        'classifiers =\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
         f'{expected}'
     )
 
@@ -772,20 +769,20 @@ def test_guess_python_requires_tox_ini_py310(tmpdir):
 
     assert setup_cfg.read() == (
         '[metadata]\n'
- 'name = pkg\n'
- 'version = 1.0\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '    Programming Language :: Python :: 3.7\n'
- '    Programming Language :: Python :: 3.8\n'
- '    Programming Language :: Python :: 3.9\n'
- '    Programming Language :: Python :: 3.10\n'
- '    Programming Language :: Python :: 3.11\n'
- '    Programming Language :: Python :: Implementation :: CPython\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
+        'name = pkg\n'
+        'version = 1.0\n'
+        'classifiers =\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '    Programming Language :: Python :: 3.7\n'
+        '    Programming Language :: Python :: 3.8\n'
+        '    Programming Language :: Python :: 3.9\n'
+        '    Programming Language :: Python :: 3.10\n'
+        '    Programming Language :: Python :: 3.11\n'
+        '    Programming Language :: Python :: Implementation :: CPython\n'
+        '\n'
+        '[options]\n'
+        'python_requires = >=3.7\n'
     )
 
 
@@ -800,7 +797,7 @@ def test_guess_python_requires_ignores_insufficient_version_envs(tmpdir):
         '    Programming Language :: Python :: Implementation :: CPython\n',
     )
 
-    assert  main((str(setup_cfg), '--max-py-version=3.7',))
+    assert main((str(setup_cfg), '--max-py-version=3.7'))
 
     assert setup_cfg.read() == (
         '[metadata]\n'
@@ -808,11 +805,11 @@ def test_guess_python_requires_ignores_insufficient_version_envs(tmpdir):
         'version = 1.0\n'
         'classifiers =\n'
         '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '    Programming Language :: Python :: Implementation :: CPython\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '    Programming Language :: Python :: Implementation :: CPython\n'
+        '\n'
+        '[options]\n'
+        'python_requires = >=3.7\n'
     )
 
 
@@ -1049,12 +1046,12 @@ def test_rewrite_extras(tmpdir):
     setup_cfg_content = (
         '[metadata]\n'
         'name = test\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
+        'classifiers =\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '\n'
+        '[options]\n'
+        'python_requires = >=3.7\n'
         '[options.extras_require]\n'
         'dev =\n'
         '    pytest\n'
@@ -1072,12 +1069,12 @@ def test_rewrite_extras(tmpdir):
     assert setup_cfg.read() == (
         '[metadata]\n'
         'name = test\n'
- 'classifiers =\n'
- '    Programming Language :: Python :: 3\n'
- '    Programming Language :: Python :: 3 :: Only\n'
- '\n'
- '[options]\n'
- 'python_requires = >=3.7\n'
+        'classifiers =\n'
+        '    Programming Language :: Python :: 3\n'
+        '    Programming Language :: Python :: 3 :: Only\n'
+        '\n'
+        '[options]\n'
+        'python_requires = >=3.7\n'
         '\n'
         '[options.extras_require]\n'
         'ci =\n'
@@ -1281,10 +1278,10 @@ def test_leaves_casing_of_unrelated_settings(tmpdir):
         'python_requires = >=3.7\n'
         '\n'
         '[tool:pytest]\n'
-        'DJANGO_SETTINGS_MODULE = test.test\n'
+        'DJANGO_SETTINGS_MODULE = test.test\n',
     )
 
-    assert not  main((str(setup_cfg),))
+    assert not main((str(setup_cfg),))
 
 
 def test_natural_sort():