Comment 0 for bug 1846933

Ubuntu 18.04.3 LTS 64 bits
After installing a clean Ubuntu, everything is OK, gufw works (and open its window) correctly.
But after updating Python in the last version 3.7.4, nothing goes round (one 2 different machines).
Here is the answer in a terminal :

Traceback (most recent call last):
  File "/usr/share/gufw/gufw/gufw.py", line 21, in <module>
    from gufw.view.gufw import Gufw
  File "/usr/share/gufw/gufw/gufw/view/gufw.py", line 18, in <module>
    import gi
ModuleNotFoundError: No module named 'gi'

and there is no more open windows (display) for gufw.
Last version Python is completly installed.

So, what can be done ?...