Bug#902989: python3-pyatspi: fresh installation breaks

[Wolfgang Schweer]

Package:  python3-pyatspi
Version:  2.26.0+dfsg-1
Severity: serious
User: debian-edu at lists.debian.org
Usertags: debian-edu


Dear Maintainer,

when running 'apt --reinstall install python3-pyatspi' on a system 
running buster/sid the installation breaks. 
This is the error output when running 'LC_ALL=C apt -f install':

Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up python3-pyatspi (2.26.0+dfsg-1) ...
  File "/usr/lib/python3/dist-packages/pyatspi/registry.py", line 114
    self.async = False	# not fully supported yet
             ^
SyntaxError: invalid syntax

dpkg: error processing package python3-pyatspi (--configure):
 installed python3-pyatspi package post-installation script subprocess 
returned error exit status 1
Errors were encountered while processing:
 python3-pyatspi
E: Sub-process /usr/bin/dpkg returned an error code (1)

I noticed this problem in the first place when searching for reasons why
the src:debian-edu autopkgtest is failing; see:
https://ci.debian.net/data/autopkgtest/unstable/amd64/d/debian-edu/556605/log.gz

Due to this bug, both GNOME and MATE desktop installations seem to be 
broken.

Wolfgang
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