BLD: PEP 639 compliance (declare license-files)

Author: neutrinoceros

MANIFEST.in

@@ -1,4 +1,4 @@
-include CHANGES README LICENSE Makefile pyproject.toml setup.py
+include CHANGES README Makefile pyproject.toml setup.py
 recursive-include lib/yaml *.py
 recursive-include lib/_yaml *.py
 recursive-include packaging *

pyproject.toml

@@ -1,7 +1,6 @@
 [build-system]
 requires = [
-    "setuptools",  # FIXME: declare min/max setuptools versions?
-    "wheel",
+    "setuptools>=77.0.0",
     "Cython; python_version < '3.13'",
     "Cython>=3.0; python_version >= '3.13'"
 ]

setup.py

@@ -17,13 +17,13 @@
 AUTHOR = "Kirill Simonov"
 AUTHOR_EMAIL = '[email protected]'
 LICENSE = "MIT"
+LICENSE_FILES = ["LICENSE"]
 PLATFORMS = "Any"
 URL = "https://pyyaml.org/"
 DOWNLOAD_URL = "https://pypi.org/project/PyYAML/"
 CLASSIFIERS = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
     "Programming Language :: Cython",
     "Programming Language :: Python",
@@ -339,6 +339,7 @@ def run(self):
         author=AUTHOR,
         author_email=AUTHOR_EMAIL,
         license=LICENSE,
+        license_files=LICENSE_FILES,
         platforms=PLATFORMS,
         url=URL,
         download_url=DOWNLOAD_URL,