Ubuntu
python-defaults package

on a lucid->precise dist-upgrade pycompile can't find the logging module

Bug #972674 reported by CarstenHey
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
python-defaults (Ubuntu)
Triaged
Medium
Unassigned

Bug Description

I did (not copy and pasted, so there might be typos):

  debootstrap --variant=minbase lucid foo
  chroot foo
  sed -i s/lucid/precise/g /etc/apt/sources.list
  apt-get --no-install-recommends dist-upgrade

The latter command failed. Its output ended with:

  Traceback (most recent call last):
    File "/usr/bin/pycompile", line 26, in <module>
      import logging
  ImportError: No module named logging
  dpkg: error processing debconf (--configure):
    subprocess installed post-installation script returned error exit status 1
  Errors were encountered while processing:
    debconf

dpkg -S revealed that pycompile belongs to python-minimal and the dependencies suggest that this was still the version in lucid.

Looks like you need to adapt the dependencies in some way to provide a clean upgrade path from lucid to precise.

Revision history for this message
CarstenHey (c.hey) wrote : Re: [Bug 972674] [NEW] pycompile: ImportError: No module named logging

* CarstenHey [2012-04-03 17:40 -0000]:
> I did (not copy and pasted, so there might be typos):
>
> debootstrap --variant=minbase lucid foo
> chroot foo
> sed -i s/lucid/precise/g /etc/apt/sources.list
> apt-get --no-install-recommends dist-upgrade

I also mounted various standard directories and copied the whole
directory before chrooting.

The original one, which is still lucid, also contains this error, i.e.,
pycompile --version fails with the same error.

> Looks like you need to adapt the dependencies in some way to provide a
> clean upgrade path from lucid to precise.

So this bug is caused by python-minimal/lucid, which I assume won't be
fixed anymore. Making debconf conflict with python-minimal/lucid could
fix the upgrade problem.

Revision history for this message
Matthias Klose (doko) wrote : Re: pycompile: ImportError: No module named logging

I can't see a good way to fix this. The good thing is that this is usually not seen when dist-upgrading a more complete lucid installation.

Changed in python-defaults (Ubuntu):
importance: Undecided → Medium
status: New → Triaged
summary: - pycompile: ImportError: No module named logging
+ on a lucid->precise dist-upgrade pycompile can't find the logging module
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