Deprecation fix

[jmwright]

The use of pkg_resources is deprecated and could start breaking installs at any time.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.37%. Comparing base (5171a07) to head (4453669).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #549   +/-   ##
=======================================
  Coverage   88.37%   88.37%           
=======================================
  Files          20       20           
  Lines        2289     2289           
  Branches      261      261           
=======================================
  Hits         2023     2023           
  Misses        198      198           
  Partials       68       68           

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