Cfxtrjtrk

I'm rather new to Ubuntu and I'm trying to run update-manager on Ubuntu.13.10. I get:

jacopo@jacopo-laptop:~$ update-manager 

Traceback (most recent call last):

  File "/usr/bin/update-manager", line 28, in <module>

    from gi.repository import Gtk

  File "/usr/lib/python3/dist-packages/gi/__init__.py", line 27, in <module> from ._gi import _API

ImportError: No module named 'gi._gi'

Error in sys.excepthook:

Traceback (most recent call last):

  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 64, in apport_excepthook

    from apport.fileutils import likely_packaged, get_recent_crashes

  File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>

    from apport.report import Report

  File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>

import apport.fileutils

  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>

    from apport.packaging_impl import impl as packaging

  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 20, in <module>

import apt

File "/usr/lib/python3/dist-packages/apt/__init__.py", line 21, in <module>

import apt_pkg

ImportError: No module named 'apt_pkg'



Original exception was:

Traceback (most recent call last):

File "/usr/bin/update-manager", line 28, in <module>

from gi.repository import Gtk

File "/usr/lib/python3/dist-packages/gi/__init__.py", line 27, in <module>

from ._gi import _API

ImportError: No module named 'gi._gi'

As far as I have understood, this is a problem related to the fact that I should have python3.4 installed. I installed it in /usr/local/ lib, but I always get the same error. In this way I can't even upgrade to Ubuntu 14.04.
Could someone help me?
Thanks in advance!

Jacopo

If you're trying to upgrade 13.10 to 14.04, try following these instructions. If you're just trying to update your current system from the command line, open a terminal and type the following:

sudo apt-get update

sudo apt-get dist-upgrade

This may help:

I first uninstalled apt_pkg using:

sudo apt-get remove python3-apt

and then reinstalled the package using:

sudo apt-get install python3-apt

The error is primarily because of library apt_pkg.cpython-35m-x86_64-linux-gnu.so not being present in /usr/lib/python3/dist-packages.

Removing and reinstalling helps.

I have managed to solve this by copying apt_pkg.cpython-34m-i386-linux-gnu.so to /usr/lib/python3/dist-packages/ from another desktop running Ubuntu 14.04 LTS. I have tried almost all possibilities found over internet like, purging python installation and then reinstalling, cleaning broken upgrade files etc, but ended up with no success.

Just in case it helps another, I finally solved this problem, that was apparently caused by python version conflicts, by redirecting the link python3, then redirecting it to the right python version:

sudo rm /usr/bin/python3

sudo ln -s /usr/bin/python3.4

You may need to enter the correct python version, found with

python3 -V

for me the following steps worked:

cd /usr/lib/python3/dist-packages

sudo ln -s apt_pkg.cpython-{35m,34m}-x86_64-linux-gnu.so

the original solution is here: https://stackoverflow.com/questions/13708180/python-dev-installation-error-importerror-no-module-named-apt-pkg/36232975#36232975