一 报错信息

最近安装pytorch-quantization报错，安装失败报错信息如下：

Looking in indexes: https://pypi.org/simple, https://pypi.ngc.nvidia.com
Collecting pytorch-quantization
  Downloading pytorch-quantization-2.2.1.tar.gz (6.8 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [16 lines of output]
      Traceback (most recent call last):
        File "<string>", line 36, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/tmp/pip-install-f9tw8c74/pytorch-quantization_ae408775160944c195742c752da0d2ed/setup.py", line 137, in <module>
          raise RuntimeError(open("ERROR.txt", "r").read())
      RuntimeError:
      ###########################################################################################
      The package you are trying to install is only a placeholder project on PyPI.org repository.
      This package is hosted on NVIDIA Python Package Index.

      This package can be installed as:
      ```
      $ pip install --no-cache-dir --extra-index-url https://pypi.nvidia.com pytorch-quantization
      ```
      ###########################################################################################

      [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.

二 解决方案

pip install --no-cache-dir --index-url https://pypi.nvidia.com --index-url https://pypi.org/simple pytorch-quantization==2.1.3