python - 无法在Python 3.9上使用pip安装Open CV

Question

 ERROR: Command errored out with exit status 1: 'e:\python\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\mmusa\\AppData\\Local\\Temp\\pip-install-z5zd5j52\\numpy\\setup.py'"'"'; __file__='"'"'C:\\Users\\mmusa\\AppData\\Local\\Temp\\pip-install-z5zd5j52\\numpy\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\mmusa\AppData\Local\Temp\pip-record-wre2z2vk\install-record.txt' --single-version-externally-managed --prefix 'C:\Users\mmusa\AppData\Local\Temp\pip-build-env-zf5z8fdj\overlay' --compile --install-headers 'C:\Users\mmusa\AppData\Local\Temp\pip-build-env-zf5z8fdj\overlay\Include\numpy' Check the logs for full command output.
  ----------------------------------------
ERROR: Command errored out with exit status 1: 'e:\python\python.exe' 'e:\python\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\mmusa\AppData\Local\Temp\pip-build-env-zf5z8fdj\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel scikit-build cmake pip 'numpy==1.11.3; python_version=='"'"'3.5'"'"'' 'numpy==1.13.3; python_version=='"'"'3.6'"'"'' 'numpy==1.14.5; python_version=='"'"'3.7'"'"'' 'numpy==1.17.3; python_version>='"'"'3.8'"'"'' Check the logs for full command output.

安装opencv时出现此错误。我已经升级了pip，目前正在使用Python 3.9。任何帮助，将不胜感激

Answer 1

我在这里下载现代机器学习库时遇到了同样的问题(TensorFlow，sci-kit learning)，所以看到TensorFlow文档(官方)表明我们应该使用python 3.3-3.8进行安装。我尝试了一下，幸运的是，它奏效了。希望对你有帮助!因此，根据我的说法，您还应该安装python 3.8