Bug#891023: python-tables-doc: fails to upgrade from 'stretch' - trying to overwrite /usr/share/doc/python-tables/README.rst.gz

[Andreas Beckmann]

Package: python-tables-doc
Version: 3.4.2-3
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts

Hi,

during a test with piuparts I noticed your package fails to upgrade from
'stretch'.
It installed fine in 'stretch', then the upgrade to 'buster' fails
because it tries to overwrite other packages files without declaring a
Breaks+Replaces relation.

See policy 7.6 at
https://www.debian.org/doc/debian-policy/#overwriting-files-and-replacing-packages-replaces

>From the attached log (scroll to the bottom...):

  Selecting previously unselected package python-tables-doc.
  Preparing to unpack .../11-python-tables-doc_3.4.2-3_all.deb ...
  Unpacking python-tables-doc (3.4.2-3) ...
  dpkg: error processing archive /tmp/apt-dpkg-install-nbbJmI/11-python-tables-doc_3.4.2-3_all.deb (--unpack):
   trying to overwrite '/usr/share/doc/python-tables/README.rst.gz', which is also in package python-tables 3.3.0-5
  Errors were encountered while processing:
   /tmp/apt-dpkg-install-nbbJmI/11-python-tables-doc_3.4.2-3_all.deb

This is probably caused by a behavior change of dh_installdocs in
debhelper compat level 11.


cheers,

Andreas
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