Fix deprecation warning on regex

[RubenRubens]

This simple fix removes a warning in pytest.

[codecov]

Codecov Report

Merging #654 (112024d) into master (2e8d674) will increase coverage by 0.19%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #654      +/-   ##
==========================================
+ Coverage   93.84%   94.03%   +0.19%     
==========================================
  Files          31       31              
  Lines        6447     6636     +189     
  Branches      691      726      +35     
==========================================
+ Hits         6050     6240     +190     
  Misses        258      258              
+ Partials      139      138       -1     

Impacted Files	Coverage Δ
cadquery/selectors.py	98.01% <ø> (ø)
cadquery/occ_impl/shapes.py	91.89% <0.00%> (-0.03%)	⬇️
tests/test_cadquery.py	99.13% <0.00%> (+0.08%)	⬆️
cadquery/occ_impl/importers.py	88.42% <0.00%> (+0.09%)	⬆️
cadquery/cq.py	89.89% <0.00%> (+0.51%)	⬆️

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[marcus7070]

These characters now get rendered as a link to something 🤷 in the HTML docs. https://cadquery--654.org.readthedocs.build/en/654/classreference.html#cadquery.selectors.ParallelDirSelector

Does pytest still throw warnings if you keep the raw string but add the backslash back in?

[RubenRubens]

AFAIK r"\|(X|Y|Z)" would be displayed as \|(X|Y|Z). So, I don't find it ideal neither. 😕 Nice catch by the way. Should we open an issue on sphinx-doc/sphinx?

[marcus7070]

I agree, the best solution would be to tell Sphinx that the pipe symbol is not... whatever it thinks it is (variable substitution? But why does that make a link?). I'm sure there is some way to do that, but sphinx is so complicated and I'll take the easy way out of by just escaping it.

Looks like r"\|(X|Y|Z)" is rendered correctly by sphinx in my local build, so I've added a commit.

[marcus7070]

This looks good to me, I can't see any more weird links:

https://cadquery--654.org.readthedocs.build/en/654/classreference.html#cadquery.ParallelDirSelector

And the pytest warnings (which didn't show up on Azure, but did show up on Travis) are gone.

Feel free to try something different if you want to @RubenRubens and I'll have another look at it, or let me know if you want to merge as is.

[jmwright]

All checks are green. Shall I merge?

[marcus7070]

@jmwright, I'd just wait for @RubenRubens. If they are feeling like a deep dive into the sphinx internals, there might be a way to do this better. If they don't feel like a deep dive then this will do, I'm certainly not volunteering to figure out why sphinx thinks |X is a link to nowhere.

[RubenRubens]

Great! Let's just merge this then.

[jmwright]

Thanks @RubenRubens !