安装mindspore_rl踩坑

症状：

 Using cached https://pypi.tuna.tsinghua.edu.cn/packages/4b/48/920cea66177b865663fde5a9390a59de0ef3b642ad98106ac1d8717d7005/gym-0.21.0.tar.gz (1.5 MB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      error in gym setup command: 'extras_require' must be a dictionary whose values are strings or lists of strings containing valid project/version requirement specifiers.
      [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.

解决：

pip install setuptools==65.5.0 pip==21  # gym 0.21 installation is broken with more recent versions

pip install wheel==0.38.0

参考：

安装gym==0.21.0出现error in gym setup command: 'extras_require' must be a dictionary... - 知乎

Expected end or semicolon (after version specifier) opencv-python＞=3. 解决方案_expected end or semicolon (after name and no valid-优快云博客