Handle tilde ~ in model paths.

[tillahoffmann]

Apple uses tildes in some paths for files that are synced through iCloud (see here, for example). It's of course a somewhat questionable choice. This PR allows models in these iCloud folders to be compiled and used.

Submission Checklist

• Run unit tests
• Declare copyright holder and open-source license: see below

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Please list the copyright holder for the work you are submitting (this will be you or your assignee, such as a university or company): Harvard University

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• Code: BSD 3-clause (https://opensource.org/licenses/BSD-3-Clause)

[codecov-commenter]

Codecov Report

Merging #671 (5b1a3f8) into develop (452e8ef) will increase coverage by 0.13%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #671      +/-   ##
===========================================
+ Coverage    80.92%   81.06%   +0.13%     
===========================================
  Files           69       69              
  Lines        10653    10677      +24     
===========================================
+ Hits          8621     8655      +34     
+ Misses        2032     2022      -10     

see 6 files with indirect coverage changes

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[WardBrian]

A couple small comments, but more generally the Windows failures are obviously the bigger issue here. ~ is used on Windows for "short paths": https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file?redirectedfrom=MSDN#short-vs-long-names

[tillahoffmann]

the Windows failures are obviously the bigger issue here.

Seems like we could just skip handling ~ on Windows given that it seems to be happy with tildes anyway. I'll make the appropriate changes.

Edit: Sorry for the noise; I don't have a Windows machine to test on locally.

[ahartikainen]

Maybe pytest skipif for Windows is enough for the tests.