Bug#938884: python-zeitgeist (binary) removal blocked by gtk-doc

[Andreas Henriksson <andreas@fatal.se>]

Control: block -1 by 939500

Hi,

Once the two applications using python-zeitgeist stops doing that,
disabling the use of python2 use in zeitgeist build is still not
super trivial. The reason is that zeitgeist needs python(3)-rdflib
to generate the onthologies and the configure.ac uses the AM_PATH_PYTHON
macro that will find python2 before python3. As long as something
pulls in python(2) into the build, it doesn't work to just use
python3:any and python3-rdflib to build zeitgeist because of that.
The package pulling in python(2) is gtk-doc, which has been fixed
in experimental but is still pending upload to unstable.
Set the relevant tracking bug as a blocker for this.

In other words, as soon as all the blockers has been resolved it should
hopefully be as easy to fix this bug report as:
- drop the python-zeitgeist binary package (together with dh-python
  and other related machinery).
- switch python-rdflib build-dep to python3-rdflib and python to
  python3:any.

(Atleast I'm not aware of any futher problems right now.)

Regards,
Andreas Henriksson