Hello Guix!

It appears that our python is incorrectly compiled or compiled with 
missing component. Due to this, OMEMO plugin in gajim does not work.

Here is the output for `gajim -l gajim.p.omemo=DEBUG`:

*** START ***
Traceback (most recent call last):
   File 
"/gnu/store/5h0xfqysfddzc4283wcyr0j8jj2zaz9c-gajim-1.2.2/bin/..gajim-real-real", 
line 4, in <module>
     import re
   File 
"/gnu/store/09a5iq080g9b641jyl363dr5jkkvnhcn-python-3.8.2/lib/python3.8/re.py", 
line 143, in <module>
     class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
*** END ***

Also, I am flagging this issue as 'important' as it affects 
security/privacy of messaging in gajim application.

Regards,
RG.