[Bug] AttributeError: module 'pkgutil' has no attribute 'ImpImporter'. Did you mean: 'zipimporter'?

[hoseinalhoseiny]

Prerequisite

• I have searched Issues and Discussions but cannot get the expected help.
• The bug has not been fixed in the latest version(https://github.com/open-mmlab/mmcv).

Environment

i setup pytorch using pip3 install torch torchvision --index-url https://download.pytorch.org/whl/cu126 and i work in google colab and CUDA version is 12.8
when run !pip install -U openmim
!mim install mmcv commands
google colab shows below error:
Traceback (most recent call last):
File "/usr/local/bin/mim", line 3, in
from mim.cli import cli
File "/usr/local/lib/python3.12/dist-packages/mim/init.py", line 10, in
import setuptools # noqa: F401
^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/setuptools/init.py", line 16, in
import setuptools.version
File "/usr/local/lib/python3.12/dist-packages/setuptools/version.py", line 1, in
import pkg_resources
File "/usr/local/lib/python3.12/dist-packages/pkg_resources/init.py", line 2172, in
register_finder(pkgutil.ImpImporter, find_on_path)
^^^^^^^^^^^^^^^^^^^
AttributeError: module 'pkgutil' has no attribute 'ImpImporter'. Did you mean: 'zipimporter'?

Reproduces the problem - code sample

!pip install -U openmim
!mim install mmcv

Reproduces the problem - command or script

!pip install -U openmim
!mim install mmcv

Reproduces the problem - error message

Traceback (most recent call last):
File "/usr/local/bin/mim", line 3, in
from mim.cli import cli
File "/usr/local/lib/python3.12/dist-packages/mim/init.py", line 10, in
import setuptools # noqa: F401
^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/dist-packages/setuptools/init.py", line 16, in
import setuptools.version
File "/usr/local/lib/python3.12/dist-packages/setuptools/version.py", line 1, in
import pkg_resources
File "/usr/local/lib/python3.12/dist-packages/pkg_resources/init.py", line 2172, in
register_finder(pkgutil.ImpImporter, find_on_path)
^^^^^^^^^^^^^^^^^^^
AttributeError: module 'pkgutil' has no attribute 'ImpImporter'. Did you mean: 'zipimporter'?

Additional information

No response