Subject: bug#54417: system-config-printers is missing cups helpers

From: Liliana Marie Prikler <[email-masked]>
Date: Wed, 16 Mar 2022 10:52:24 +0100

$ system-config-printer
Traceback (most recent call last):
  File "/gnu/store/n5ml8i1k1g5d79damckfv24kzx4z6gn5-system-config-
printer-1.5.15/share/system-config-printer/system-config-printer.py",
line 76, in <module>
    import cupshelpers
ModuleNotFoundError: No module named 'cupshelpers'

Note that cupshelpers is in 
/gnu/store/n5ml8i1k1g5d79damckfv24kzx4z6gn5-system-config-printer-
1.5.15/lib/python3.9/site-packages, which does not get correctly added
to GUIX_PYTHONPATH in the wrapper.

On a separate note, version 1.5.16 has been released and should be
considered for upgrading.

Cheers