r1941: * ACK last three NMUs with thanks to Raphael Hertzog for making the best of

r1941: * ACK last three NMUs with thanks to Raphael Hertzog for making the best of
  a difficult situation.
* Revert all dh_python changes. Closes: #381389, #378604
* Conflict with python-support << 0.5.3 and python-central << 0.5.5.
* Make dh_python do nothing if debian/pycompat is found.
  The new versions of dh_pysupport or dh_pycentral will take care of
  everything dh_python used to do in this situation.
* dh_python is now deprecated. Closes: #358392, #253582, #189474
* Non-maintainer upload.
* Update of dh_python
  - when buidling for a non-standard Python version, generate more
    reasonable Depends like "python (>= X.Y) | pythonX.Y"
    Closes: #375576
  - fix handling of private extensions. Closes: #375948
  - fix parsing of XS-Python-Version, it didn't work if only fixed versions
    were listed in XS-Python-Version.
  - fix use of unitialized value. Closes: #374776
  - fix typos in POD documentation. Closes: #375936
* Non-maintainer upload.
* Update of dh_python
  - vastly refactored, easier to understand, and the difference
    between old policy and new policy is easier to grasp
  - it supports an -X option which can be used to not scan some files
  - uses debian/pyversions as reference source of information for
    dependencies but also parse the XS-Python-Version header as fallback.
  - ${python:Versions}'s default value is XS-Python-Version's value
    instead of "all" when the package doesn't depend on a
    specific python version. Closes: #373853
  - always generate ${python:Provides} and leave the responsibility to the
    maintainer to not use ${python:Provides} if he doesn't want the
    provides.
  - uses debian/pycompat or DH_PYCOMPAT as reference field to run in new
    policy mode. The presence of XS-Python-Version will also trigger the
    new policy mode (this is for short-term compatibility, it may be removed in
    the not too-distant future).
    DH_PYCOMPAT=1 is the default mode and is compatible to the old policy.
    DH_PYCOMPAT=2 is the new mode and is compatible with the new policy.
* Use "grep ^Version:" instead of "grep Version:" on the output of
  dpkg-parsechangelog since the above changelog entry matched "Version:" and
  thus made the build fail.
* Non-maintainer upload.
* Integrate the new dh_python implementing the new Python policy. Closes: #370833