Bug#981932: lintian: warn about packages using PyPI pages in the Homepage field

[Jakub Wilk <jwilk@jwilk.net>]

* Paul Wise <pabs@debian.org>, 2021-02-05, 16:59:
> PyPI is a packaging system just as Debian is a packaging system and 
> each PyPI package has a Homepage link that points at the upstream 
> homepage.

Not every package at PyPI has Homepage set, e.g.:
https://pypi.org/project/python-cpl/

And sometimes Homepage points back to the PyPI page, e.g.:
https://pypi.org/project/Unidecode/

> According to the Debian Code Search service 100 packages are affected:
>
> https://codesearch.debian.net/search?q=path%3Adebian%2Fcontrol+Homepage%3A.*pypi&literal=0

Actually that's 277 packages at the moment.

--
Jakub Wilk