s3fs depends on an exact version of fsspec, so you cannot install the dev version of s3fs in the same environment as the dev version of fsspec while respecting that versioning requirement. See a ...

Question I'm using Poetry to build a library that uses Pyiceberg. I have pyiceberg[glue,s3fs] as a dependency. The users of my library install it using pip. This has all worked fine until PyIceberg v0 ...

Devs unknowingly use “malicious” modules snuck into official Python repository Code packages available in PyPI contained modified installation scripts.