[Python-modules-team] Bug#802229: python-cffi: Uses versioned Provides

[Dmitry Shachnev]

Package: python3-cffi-backend
Version: 1.2.1-1
Severity: important
Justification: Policy § 7.5

Dear Maintainer,

Packages python-cffi-backend and python3-cffi-backend currently have
versioned Provides field:

  $ apt-cache show python3-cffi-backend | grep ^Provides
  Provides: python3-cffi-backend-api-9729, python3-cffi-backend-api-max (= 9983), python3-cffi-backend-api-min (= 9729)
                                                                        ^^^^^^^^                               ^^^^^^^^

These provides are generated in debian/gen-backend-versions.py at lines 39-40.

However, the Policy § 7.5 (Virtual packages - Provides) [1] says:

 | A Provides field may not contain version numbers, and the version number of
 | the concrete package which provides a particular virtual package will not be
 | considered when considering a dependency on or conflict with the virtual
 | package name.

[1]: https://www.debian.org/doc/debian-policy/ch-relationships.html#s-virtual

--
Dmitry Shachnev
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