[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

setup.cfg

@@ -7,23 +7,19 @@ url = https://github.com/dannysepler/killport
 author = Danny Sepler
 author_email = dannysepler@gmail.com
 license = MIT
-license_file = LICENSE
+license_files = LICENSE
 classifiers =
     License :: OSI Approved :: MIT License
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
 project_urls =
     Bug Tracker = https://github.com/dannysepler/killport/issues
 
 [options]
 py_modules = killport
 install_requires =
     psutil
-python_requires = >=3.7.0
+python_requires = >=3.9
 
 [options.packages.find]
 exclude =