AttributeError: module 'pkgutil' has no attribute 'ImpImporter'.

[redo33]

On Windows 11, Python 3.12.9, torch 2.7.0+cu128, numpy 1.26.4

Collecting tensorrt (from -r requirements.txt (line 1))
  Using cached tensorrt-10.12.0.36.tar.gz (40 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [11 lines of output]
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 14, in <module>
        File "G:\SD\ComfyUI\comfyui_env\Lib\site-packages\setuptools\__init__.py", line 16, in <module>
          import setuptools.version
        File "G:\SD\ComfyUI\comfyui_env\Lib\site-packages\setuptools\version.py", line 1, in <module>
          import pkg_resources
        File "G:\SD\ComfyUI\comfyui_env\Lib\site-packages\pkg_resources\__init__.py", line 2191, in <module>
          register_finder(pkgutil.ImpImporter, find_on_path)
                          ^^^^^^^^^^^^^^^^^^^
      AttributeError: module 'pkgutil' has no attribute 'ImpImporter'. Did you mean: 'zipimporter'?
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

Any suggestion would be appreciated. Thank you.

[redo33]

It seems that the Python 3.12 is not compatible.

The root isue is that Python 3.12.9 removed the ImpImporter class from the pkgutil module.

source comfyanonymous/ComfyUI#8619 (comment)

[Jexposition]

Follow : > You need to upgrade setuptools. See https://github.com/woct0rdho/triton-windows#attributeerror-module-pkgutil-has-no-attribute-impimporter-did-you-mean-zipimporter

Originally posted by @woct0rdho in #8619

Do not acknowledge my process please, i realized i batch applied fixes in a one shot script i found it the other day and in the script i had it also update setup tools as part of the batch fix and that could of been the thing that actually fixed it but i didn't realize because i was tunnel visioned in other logic and probably got blind sided and then couldn't pinpoint what actually fixed it because i was in a rush and applied it all at once. But today i had issue again with another install and updating setup tools worked.

Root Cause

Python 3.12 Change: The ImpImporter class was deprecated and removed in Python 3.12, causing packages that depend on it (via pkg_resources in setuptools) to fail during installation or import.
Stack Overflow Github/woct0rdho/triton-windows Github

TensorRT Installation: The tensorrt package’s setup.py triggers this error because it uses an older setuptools version that references NVIDIA/TensorRT/issues

Recommended Solution:
The simplest and most reliable fix is to update setuptools to a version that no longer relies on ImpImporter. Recent versions of setuptools have been updated to use importlib instead of pkgutil.ImpImporter, addressing this compatibility issue.

[yuvraj108c]

#62

[yuvraj108c]

#67

[yuvraj108c]

#64