tests/conftest.py, tests/_test_patching.py, tests/fixtures/fsspec.py and other files are missing from the PYPI distribution

[yurivict]

Describe the bug

Version: 4.8.5

Steps to reproduce the bug

n/a

Expected behavior

n/a

Environment info

n/a

[rehan243]

Hey, ran into something similar a while back when we were packaging a custom dataset loader for a client at v4.7.x. Turns out, PyPI distributions sometimes skip test files and fixtures like conftest.py since they're not critical for runtime—honestly, it's a packaging config thing in setup.py or pyproject.toml. We ended up manually pulling the source from GitHub for testing purposes when we needed those files. Stick to the repo if you’re debugging or running tests locally.