Bug#832410: python-clang-4.0, python-lldb-4.0: missing Breaks+Replaces against the corresponding python-*-3.9 packages

[Andreas Beckmann]

Package: python-clang-4.0,python-lldb-4.0
Version: 1:4.0~svn276280-1~exp1
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts

Here we go again ... since this problem is reappearing in every new
upstream version, I'd recommend to use Provides/Conflicts/Replaces on a
virtual package, e.g. python-clang-x.y, python-lldb-x.y (literal x.y).

  Selecting previously unselected package python-lldb-4.0.
  Preparing to unpack .../python-lldb-4.0_1%3a4.0~svn276280-1~exp1_amd64.deb ...
  Unpacking python-lldb-4.0 (1:4.0~svn276280-1~exp1) ...
  dpkg: error processing archive /var/cache/apt/archives/python-lldb-4.0_1%3a4.0~svn276280-1~exp1_amd64.deb (--unpack):
   trying to overwrite '/usr/lib/python2.7/dist-packages/lldb', which is also in package python-lldb-3.9 1:3.9~svn275918-1~exp1

  Selecting previously unselected package python-clang-4.0.
  Preparing to unpack .../python-clang-4.0_1%3a4.0~svn276280-1~exp1_amd64.deb ...
  Unpacking python-clang-4.0 (1:4.0~svn276280-1~exp1) ...
  dpkg: error processing archive /var/cache/apt/archives/python-clang-4.0_1%3a4.0~svn276280-1~exp1_amd64.deb (--unpack):
   trying to overwrite '/usr/lib/python2.7/dist-packages/clang/__init__.py', which is also in package python-clang-3.9 1:3.9~svn275918-1~exp1

Andreas