As suggested by Éric in a Rietveld comment to issue 16406, this issue is to make the "PyPI package display" section of the distutils docs use the right terminology:

"It’s too bad this part of the documentation use “package” with the meaning used on PyPI instead of following the naming conventions used in the rest of the distutils docs (see glossary).  Here I don’t know when “package” and “home page” mean pypi.python.org/project or pypi.python.org/project/release (the former being a shortcut to the latest release page)."