解决Python库在迁移电脑后用不了

缺乏、安全感 2023-03-01 12:58 88阅读 0赞

只有一个原因——没有加入新电脑的环境变量，只要pip还在，一切都好说！

比如you-get，迁移电脑之后无法使用

pip install you-get

显示已安装，但是显示错误

PS C:\Users\MicreaVI> you-get
    you-get : 无法将“you-get”项识别为 cmdlet、函数、脚本文件或可运行程序的名称。请检查名称的拼写，如果包括路径，请确保路
    径正确，然后再试一次。
    所在位置 行:1 字符: 1
    + you-get
    + ~~~~~~~
        + CategoryInfo          : ObjectNotFound: (you-get:String) [], CommandNotFoundException
        + FullyQualifiedErrorId : CommandNotFoundException

哦？有意思！我卸载了你！

PS C:\Users\MicreaVI> pip uninstall you-get

中途点一个y确认卸载，然后重新安装`pip install you-get`

PS C:\Users\MicreaVI> pip install you-get
    WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
    Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
    To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
    Requirement already satisfied: you-get in f:\python38\lib\site-packages (0.4.1432)
    PS C:\Users\MicreaVI> pip uninstall you-get
    WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
    Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
    To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
    Found existing installation: you-get 0.4.1432
    Uninstalling you-get-0.4.1432:
      Would remove:
        f:\python38\lib\site-packages\you_get-0.4.1432.dist-info\*
        f:\python38\lib\site-packages\you_get\*
    Proceed (y/n)? y
      Successfully uninstalled you-get-0.4.1432
    PS C:\Users\MicreaVI> pip install you-get
    WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
    Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
    To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
    Collecting you-get
      Downloading you_get-0.4.1456-py3-none-any.whl (217 kB)
         |████████████████████████████████| 217 kB 105 kB/s
    Installing collected packages: you-get
    Successfully installed you-get-0.4.1456
    PS C:\Users\MicreaVI>