Viability of removing _testcapi dependency

[lach1010]

Some testing in test_utils.py makes use of the _testcapi Cpython module.

Would it be feasible to remove this dependency?

Managing Python installs on MacOS sucks so I use UV rather than direct global instalations. I don't think UV's Astral Python binaries include the Python test suite for performance reasons - leading to this module being missing.

Presumably it would also be missing for uses of other Python implementations like PyPy.

[Voyz]

Hey @lach1010 thanks for bringing this to my attention. I've updated the code to avoid using _testcapi like you suggest and pushed it to the master branch. Next release should include this change. Thanks!

[lach1010]

Thank you!