Triaging python module upgrade failure from 8.04 to 8.10

[Jean-Baptiste Lallement]

Hello all,

Following the release of Intrepid, we have noticed a large and growing
number of upgrade bug reports regarding miscellaneous python modules.

For most of them the error is of the kind:
=====
Preparing to replace python-modulename (using .../python-modulename.deb) ...
pycentral: pycentral pkgprepare: not overwriting local files
pycentral pkgprepare: not overwriting local files
dpkg: error processing /var/cache/apt/archives/python-modulename.deb (--unpack):
 subprocess pre-installation script returned error exit status 1
=====

This is due to users having installed python modules locally in /usr
(like users of python easy install for instance) But even if the user
did something wrong it shouldn't screw the upgrade. A patch has been
submitted in bug 291262 to change the default pycentral policy during
a dist-upgrade.

Triagers are handling these reports in quite various ways. Many
reports have been closed, some have been filed against the module,
some others against pycentral,...

The proposal to triage these bugs is to set bug 291262 as master and
mark all the others as dup of this one.

Any comment about how to deal with these bugs ?

Thanks,

--
Jean-Baptiste