BleachBit and other programs report No module named 'gtk' ModuleNotFoundError:

Question

I am new to Ubuntu 18.04 and an aspiring and learning Python self-taught student I expect I did something something unsmart when installing Python 3.7.1 on Ubuntu 18.04. I did have Bleachbit working but now when attempt to open BLeachBit and a couple of other programs with sudo I get the same response:

      $ sudo bleachbit
      Traceback (most recent call last):
      File "/usr/bin/bleachbit", line 38, in <module>
      import gtk
      ModuleNotFoundError: No module named 'gtk'

I used the following command and the system reports that two versions of GTK are installed:

    $ dpkg -l libgtk2.0-0 libgtk-3-0
    Desired=Unknown/Install/Remove/Purge/Hold

| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig- aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture
Description +++-============================ ii libgtk-3-0:amd64 3.22.30-1ubuntu1 amd64
GTK+ graphical user interface library ii libgtk2.0-0:amd64 2.24.32-1ubuntu1 amd64
GTK+ graphical user interface library

I believe the GTK is installed.

How to I get the GTK to import to where it is needed. I have configured the virtualwrapper 'workon" working and have configured Python so I can choose between Python 3.6.6 and Python 3.71 via

    sudo update-alternatives --config python

I am not sure if that would have misconfigured Python some how.

I would appreciate some direction as to next steps or just wipe disk and re-install Ubuntu.....

Thanks for your attention

chb chb · Accepted Answer · 2018-11-15T22:42:35

The packages you found using dpkg refer to C system libraries.

You need the Python library that binds to these libraries; it is called PyGTK, and is listed on this BleachBit project page.

You can use pip to install it: pip install PyGTK

BleachBit and other programs report No module named 'gtk' ModuleNotFoundError:

1 Answers