Fatal error in launcher: Unable to create process using ‘“d:\anaconda\envs\pytorch\python.exe“...

pip install pytest出现如下错误:

Fatal error in launcher: Unable to create process using ‘“d:\anaconda\envs\pytorch\python.exe” “F:\Anaconda\envs\pytorch\Scripts\pip.exe” install pytest’: ???

解决办法:

python -m pip install --upgrade pip

最后pip install pytest安装成功!!!

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