TypeError when unpickling

[oelhammouchi]

Hi, thanks for writing this library! I'm running into a strange issue when trying to pickle the GroupNotFoundError class from zarr-developers/zarr-python defined here. Unpickling the exception raises the following error:

TypeError: ValueError.__new__(GroupNotFoundError) is not safe, use GroupNotFoundError.__new__()

Any idea what could be causing this and how to resolve it?

[ionelmc]

Seems to me like that is a Python bug - it doesn't happen on Python 3.14 - you must be using 3.13 or older.