gh-93627: Align Python implementation of pickle with C implementation of pickle by eendebakpt · Pull Request #103035 · python/cpython

What implementation does it test?

The tests in this module is organized in special way. There are abstract classes which test with the specified implementation specified by class attributes, and there are concrete subclasses which specialize tests for Python and C implementations. It would be better to rewrite your tests in conformance with existing style.