在安装gptqmodel时发现报缺少torch但明明已经安装ModuleNotFoundError: No module named ‘torch‘ [end of output]

引用：在安装mmdetection时发现报缺少torch但明明已经安装ModuleNotFoundError: No module named ‘torch‘ [end of output]_modulenotfounderror: no module named 'torch' [end -优快云博客

报错背景：
pip安装一个gptqmodel库时，明明已经安装了torch库但仍然报没有安装。

pip list
Package           Version
----------------- ----------

torch             2.6.0+cpu
torchaudio        2.6.0+cpu
torchvision       0.21.0+cpu

pip install gptqmodel
Collecting gptqmodel
  Using cached gptqmodel-2.2.0.tar.gz (284 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [17 lines of output]
      Traceback (most recent call last):
        File "D:\Python\Python310\lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 389, in <module>
          main()
        File "D:\Python\Python310\lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 373, in main
          json_out["return_val"] = hook(**hook_input["kwargs"])
        File "D:\Python\Python310\lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 143, in get_requires_for_build_wheel
          return hook(config_settings)
        File "C:\Users\30755\AppData\Local\Temp\pip-build-env-iy0284h3\overlay\Lib\site-packages\setuptools\build_meta.py", line 334, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
        File "C:\Users\30755\AppData\Local\Temp\pip-build-env-iy0284h3\overlay\Lib\site-packages\setuptools\build_meta.py", line 304, in _get_build_requires
          self.run_setup()
        File "C:\Users\30755\AppData\Local\Temp\pip-build-env-iy0284h3\overlay\Lib\site-packages\setuptools\build_meta.py", line 522, in run_setup
          super().run_setup(setup_script=setup_script)
        File "C:\Users\30755\AppData\Local\Temp\pip-build-env-iy0284h3\overlay\Lib\site-packages\setuptools\build_meta.py", line 320, in run_setup
          exec(code, locals())
        File "<string>", line 24, in <module>
      ModuleNotFoundError: No module named 'torch'
      [end of output]

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

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

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

解决办法
pip cache purge 
pip install --upgrade setuptools wheel
再次安装，成功了

pip install gptqmodel
Collecting gptqmodel
  Downloading gptqmodel-2.2.0.tar.gz (284 kB)
  Preparing metadata (setup.py) ... done
Collecting accelerate>=1.3.0 (from gptqmodel)
  Downloading accelerate-1.6.0-py3-none-any.whl.metadata (19 kB)
Collecting datasets>=3.2.0 (from gptqmodel)
  Downloading datasets-3.5.0-py3-none-any.whl.metadata (19 kB)
Requirement already satisfied: numpy>=1.26.4 in d:\python\python310\lib\site-packages (from gptqmodel) (2.1.2)
Requirement already satisfied: torch>=2.2.0 in d:\python\python310\lib\site-packages (from gptqmodel) (2.6.0+cpu)
Collecting safetensors>=0.5.2 (from gptqmodel)
  Downloading safetensors-0.5.3-cp38-abi3-win_amd64.whl.metadata (3.9 kB)
Collecting transformers>=4.49.0 (from gptqmodel)
  Downloading transformers-4.51.3-py3-none-any.whl.metadata (38 kB)
Collecting threadpoolctl>=3.6.0 (from gptqmodel)
  Downloading threadpoolctl-3.6.0-py3-none-any.whl.metadata (13 kB)
Collecting packaging>=24.2 (from gptqmodel)
  Downloading packaging-24.2-py3-none-any.whl.metadata (3.2 kB)
Collecting device-smi==0.4.1 (from gptqmodel)
  Downloading device_smi-0.4.1.tar.gz (17 kB)
  Preparing metadata (setup.py) ... done
Collecting protobuf>=5.29.3 (from gptqmodel)
  Downloading protobuf-6.30.2-cp310-abi3-win_amd64.whl.metadata (593 bytes)
Collecting pillow>=11.1.0 (from gptqmodel)
  Downloading pillow-11.2.1-cp310-cp310-win_amd64.whl.metadata (9.1 kB)
Collecting hf_transfer>=0.1.9 (from gptqmodel)
  Downloading hf_transfer-0.1.9-cp38-abi3-win_amd64.whl.metadata (1.8 kB)
Collecting huggingface_hub>=0.28.1 (from gptqmodel)
  Downloading huggingface_hub-0.30.2-py3-none-any.whl.metadata (13 kB)
Collecting random_word==1.0.13 (from gptqmodel)
  Downloading random_word-1.0.13-py3-none-any.whl.metadata (4.3 kB)
Collecting tokenicer==0.0.4 (from gptqmodel)
  Downloading tokenicer-0.0.4.tar.gz (10 kB)
  Preparing metadata (setup.py) ... done
Collecting logbar==0.0.4 (from gptqmodel)
  Downloading logbar-0.0.4.tar.gz (12 kB)
  Preparing metadata (setup.py) ... done
Collecting autopep8<3.0.0,>=2.3.1 (from random_word==1.0.13->gptqmodel)