pkg_resources Deprecation Warnings on import

[LucaBonfiglioli]

Bug description

When using setuptools>=67 importing stuff from pytorch lightning results in deprecation warning.

Setuptools 66.1.1 was released in Jan 20 2023. Pytorch Lightning has been using deprecated pkg_resources APIs for about 18 months. Is there any chance we can get rid of this in one of the next updates?

Thank you :)

What version are you seeing the problem on?

master

How to reproduce the bug

import warnings

warnings.filterwarnings("error")
import pytorch_lightning

Error messages and logs

Traceback (most recent call last):
  File "/home/xxx/repos/xxx/xxx.py", line 4, in <module>
    import lightning_utilities.core.imports
  File "/home/xxx/venvs/xxx/lib/python3.10/site-packages/lightning_utilities/__init__.py", line 6, in <module>
    from lightning_utilities.core.apply_func import apply_to_collection
  File "/home/xxx/venvs/xxx/lib/python3.10/site-packages/lightning_utilities/core/__init__.py", line 5, in <module>
    from lightning_utilities.core.imports import compare_version, module_available
  File "/home/xxx/venvs/xxx/lib/python3.10/site-packages/lightning_utilities/core/imports.py", line 14, in <module>
    import pkg_resources
  File "/home/xxx/venvs/xxx/lib/python3.10/site-packages/pkg_resources/__init__.py", line 105, in <module>
    warnings.warn(
DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html

Environment

Current environment

#- PyTorch Lightning Version 2.3.3:
#- PyTorch Version 2.3.1:
#- Python version 3.10:
#- OS (e.g., Linux): Ubuntu 22.04
#- CUDA/cuDNN version: 11.8
#- GPU models and configuration: irrelevant
#- How you installed Lightning(`conda`, `pip`, source): pip

More info

No response

[awaelchli]

Hey @LucaBonfiglioli
The deprecation does not originate from PyTorch Lightning. You can see in the trace that it is from lightning_utilities. We should fix it there. There is already an issue for it with some discussion: Lightning-AI/utilities#119.

[LucaBonfiglioli]

Thank you for your response. Sorry for the dupliate issue.