Fix black module error when 19.10b0 is installed

[koxudaxi]

Fixes: #1853

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (main@ab4a39c). Click here to learn what that means.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1855   +/-   ##
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  Coverage        ?   98.98%           
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  Files           ?       37           
  Lines           ?     4157           
  Branches        ?      968           
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  Hits            ?     4115           
  Misses          ?       26           
  Partials        ?       16           

Flag	Coverage Δ
unittests	98.65% <0.00%> (?)

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[codspeed-hq]

CodSpeed Performance Report

Merging #1855 will not alter performance

_{Comparing fix_black_module_error (b6113e3) with main (ab4a39c)}

Summary

✅ 29 untouched benchmarks