Changes to use black Python formatter

[joachimmetz]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 99.63790% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.12%. Comparing base (eb69bf4) to head (e91009a).

Files with missing lines	Patch %	Lines
dfdatetime/interface.py	98.82%	5 Missing ⚠️
dfdatetime/dotnet_datetime.py	97.77%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #308   +/-   ##
=======================================
  Coverage   99.12%   99.12%           
=======================================
  Files          24       24           
  Lines        2392     2392           
=======================================
  Hits         2371     2371           
  Misses         21       21           

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