fix: implemented fallback if inline-snapshot is used with pypy

[15r10nk]

Change Summary

Implemented fallback if inline-snapshot is used with pypy (or any other none cpython implementation of python).
I hope to support pypy in the future but I don't know how long this will take.

Related issue number

fix #1534

Checklist

• Unit tests for the changes exist
• Documentation reflects the changes where applicable
• Pydantic tests pass with this pydantic-core (except for expected changes)
• My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

Selected Reviewer: @davidhewitt

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.36%. Comparing base (ab503cb) to head (4bc75c5).
Report is 224 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1533      +/-   ##
==========================================
- Coverage   90.21%   89.36%   -0.85%     
==========================================
  Files         106      112       +6     
  Lines       16339    17928    +1589     
  Branches       36       40       +4     
==========================================
+ Hits        14740    16022    +1282     
- Misses       1592     1886     +294     
- Partials        7       20      +13     

see 54 files with indirect coverage changes

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[codspeed-hq]

CodSpeed Performance Report

Merging #1533 will not alter performance

_{Comparing 15r10nk:inline-snapshot-pypy-fix (4bc75c5) with main (2419981)}

Summary

✅ 155 untouched benchmarks

[15r10nk]

please review.

[mgorny]

This indeed makes tests pass on PyPy, thanks!

[mgorny]

Any reason not to:

Suggested change

	if sys.implementation.name == 'cpython':
	from inline_snapshot import snapshot
	else:
	try:
	from inline_snapshot import snapshot
	except ImportError:

? I mean, I've packaged inline-snapshot for Gentoo CPython already, but I suppose it may save others trouble for the time being.

[15r10nk]

I got an idea. maybe we don't need this fix at all.
I can force inline-snapshot to run with --inline-snapshot=disable if something other then cpython is used. This would allow me to enable inline-snapshot again when I support it.

This would mean for you to package a inline-snapshot version for pypy which will not be able to create snapshots ... until I support it.

I think this would be better than to add a fix like this into every package which uses inline-snapshot.

[mgorny]

Sure — but could you make it possible to run a subset of inline-snapshot's test suite that covers the available functionality on PyPy then?

[15r10nk]

Yes I will write some extra tests. But the disable logic is already tested.