That check failure is from black.

Shall I black cadquery in this PR?

black --diff cadquery
...
All done! ✨ 🍰 ✨
10 files would be reformatted, 20 files would be left unchanged.

That check failure is from black.

Shall I black cadquery in this PR?

black --diff cadquery
...
All done! ✨ 🍰 ✨
10 files would be reformatted, 20 files would be left unchanged.

Please use version specified in https://github.com/CadQuery/cadquery/blob/master/environment.yml

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.32%. Comparing base (f1b8763) to head (47e21a5).
Report is 271 commits behind head on master.

@@           Coverage Diff           @@
##           master    #1061   +/-   ##
=======================================
  Coverage   96.32%   96.32%           
=======================================
  Files          40       40           
  Lines        9648     9672   +24     
  Branches     1272     1280    +8     
=======================================
+ Hits         9293     9317   +24     
  Misses        210      210           
  Partials      145      145           

☔ View full report in Codecov by Sentry.
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@greyltc I fixed the mypy issue. Could you add a test?

@greyltc do you plan to work on this PR?

I had made part of these changes 2 months ago but at the time the PR didn't appear ready to review so I shelved them. Anyway it would be good to close the issue (with squash I think ideally).

LGTM, thanks @greyltc and @lorenzncode !