Fix pylint complaints

[ben-grande]

No description provided.

[ben-grande]

PipelineRetryFailed

[codecov]

Codecov Report

❌ Patch coverage is 30.76923% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.98%. Comparing base (66d41d3) to head (1fa231c).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
qrexec/client.py	33.33%	4 Missing ⚠️
qrexec/tools/qubes_policy.py	0.00%	2 Missing ⚠️
qrexec/tools/qubes_policy_editor.py	0.00%	2 Missing ⚠️
qrexec/policy/parser_compat.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #218   +/-   ##
=======================================
  Coverage   78.97%   78.98%           
=======================================
  Files          55       55           
  Lines       10532    10532           
=======================================
+ Hits         8318     8319    +1     
+ Misses       2214     2213    -1     

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