ml-collections breaks on Python 3.12 by relying on removed imp module

[hylkedonker]

Describe the bug
This package no longer works on Python 3.12, because it relies on the imp module which has been removed in Python 3.12.

To Reproduce

from ml_collections import config_flags

which gives the error message:

Traceback (most recent call last):
File "", line 1, in
File "/home/user/.local/lib/python3.12/site-packages/ml_collections/config_flags/init.py", line 17, in
from .config_flags import DEFINE_config_dataclass
File "/home/user/.local/lib/python3.12/site-packages/ml_collections/config_flags/config_flags.py", line 23, in
import imp
ModuleNotFoundError: No module named 'imp'

Environment:

• OS Version: Ubuntu 24.04 LTS
• Python: 3.12

[hylkedonker]

I just came across this PR, which aims to fix the problem:
#28

[hylkedonker]

A duplicate of #24.