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Bug#1004746: lintian: provide a check for Python package version numbers validity

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On Thu, Jul 14, 2022 at 09:02:40AM +0100, Julian Gilbey wrote:
> On Tue, Feb 01, 2022 at 07:57:58PM +0500, Andrey Rahmatullin wrote:
> > On Tue, Feb 01, 2022 at 02:45:21PM +0000, Julian Gilbey wrote:
> > > I just hit two packages which gave me the following warning when
> > > pkg_resources tried to load them:
> > > 
> > > /usr/lib/python3/dist-packages/pkg_resources/__init__.py:116: PkgResourcesDeprecationWarning: 1.12.1-git20200711.33e2d80-dfsg1-0.6 is an invalid version and will not be supported in a future release
> > >   warnings.warn(
> > This looks strange to me. I wouldn't expect the package version
> > (especially with the Debian part) to be there.
> > I see flatbuffers runs `VERSION=$(DEB_VERSION) python$$pv setup.py build`,
> > I don't know why, or whether this is a good idea.
> 
> Some updates on this:
> 
> * The version information can also appear in
>   /usr/lib/python3/dist-packages/*.dist-info/METADATA
> * The upstream standard is defined in PEP 440:
>   https://peps.python.org/pep-0440/
> 
> I agree, flatbuffers is doing weird stuff.
> 
> Best wishes,
> 
>    Julian

A further update: a package with this type of bug recently caused an
RC error, as it prevented other packages from loading:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1036947

So if this check is implemented, it should probably raise an lintian
Error if a package fails this check.  (The related feature request
#1005043 should probably only raise a warning.)

Best wishes,

   Julian

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Bug#1004746: lintian: provide a check for Python package version numbers validity Julian Gilbey <jdg@debian.org> - 2023-06-09 11:20 +0200

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