/usr/share/apport/apport-gtk:AttributeError:/usr/share/apport/apport-gtk@52:GTKUserInterface

[errors.ubuntu.com bug bridge]

```
Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 52, in <module>
    class GTKUserInterface(apport.ui.UserInterface):
  File "/usr/share/apport/apport-gtk", line 230, in GTKUserInterface
    ) -> apport.ui.Action:
         ^^^^^^^^^^^^^^^^
AttributeError: module 'apport.ui' has no attribute 'Action'
```

This is probably caused by uprading apport-gtk but not python3-apport.

The Ubuntu Error Tracker has been receiving reports about a problem regarding apport. This problem was most recently seen with package version 2.26.1-0ubuntu2, the problem page at https://errors.ubuntu.com/problem/52e05370e3374eceb93ed4de46fa773cbf91935c contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

[Benjamin Drung (bdrung)]

* python-apport ships /usr/lib/python3/dist-packages/apport/ui.py
* apport-gtk ships /usr/share/apport/apport-gtk
* apport.ui.Action was added in 2.25.0 (commit 36ae3310861f1286eae8875a3195551126290914)

apport-gtk already depends on python3-apport (>= ${source:Version}). So this kind of crash should not be possible.