slightly polish manifest / setup.cfg

MANIFEST.in

@@ -4,8 +4,8 @@
 # MANIFEST.in defines the files to include in an sdist. sdists are also the starting point for wheels.
 # Additional files may be included using setuptools (e.g. package_data, license_files)
 
-# We want this to be as narraw as possible, i.e. only the bare minimum of files needed for installation.
-# Note: If setuptools-scm is installed, it will include all files checked into version control, and as of this writing, it is not possible to opt out (setuptools_scm/issues/190)
+# We want this to be a tight ruleset, i.e. only include the minimum of files we actually need for packaging/installation.
+# Note: If setuptools-scm is installed, it will include all files checked into version control, and as of this writing, it is not possible to opt out: https://github.com/pypa/setuptools_scm/issues/190
 
 # Include library and setup sources
 recursive-include src/pypdfium2 *.py

setup.cfg

@@ -3,21 +3,23 @@
 
 # NOTE We have to use setup.cfg rather than pyproject.toml to declare static metadata because the latter does not permit a dynamic project name.
 
+# NOTE We use requirements files instead of [options.extras_require]. Rationale:
+# - BUG(177): PyPI refuses upload if custom deps ($DEP @ git+$URL) are specified.
+# - Installation is independent of pypdfium2 (allows to install setup deps beforehand and then use --no-build-isolation).
+
 [metadata]
 long_description = file: README.md
 long_description_content_type = text/markdown
 author = pypdfium2-team
 author_email = [email protected]
 url = https://github.com/pypdfium2-team/pypdfium2
 project_urls =
-    # TODO review/improve
     Source = https://github.com/pypdfium2-team/pypdfium2
     Tracker = https://github.com/pypdfium2-team/pypdfium2/issues
     Documentation = https://pypdfium2.readthedocs.io
     Changelog = https://pypdfium2.readthedocs.io/en/stable/changelog.html
 keywords = pdf, pdfium
 classifiers =
-    # TODO review/improve
     Development Status :: 4 - Beta
     Intended Audience :: Developers
     Intended Audience :: Information Technology
@@ -26,7 +28,3 @@ classifiers =
     Programming Language :: Python :: Implementation :: CPython
     Topic :: Multimedia :: Graphics
     Topic :: Software Development :: Libraries
-
-# NOTE We use requirements files instead of [options.extras_require]. Rationale:
-# - BUG(177): PyPI refuses upload if custom deps ($DEP @ git+$URL) are specified.
-# - Installation is independent of pypdfium2 (allows to install setup deps beforehand and then use --no-build-isolation).