streamlit执行报错WARNING，重新安装碰到问题如何解决

发现在安装的时候有很多WARNING出现，但是没有但回事，现在回想起来问题就出在这里。

如何解决

1、卸载已经安装的程序

pip uninstall streamlit
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当出现如下提示：

Would remove: c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\scripts\streamlit.cmd c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\scripts\streamlit.exe c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\site-packages\streamlit-1.20.0.dist-info\* c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\site-packages\streamlit\* Proceed (Y/n)?
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请按“Y”并回车。

2、再次安装程序

pip install streamlit
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3、出现如下yinstaller 警告问题：

 WARNING: Ignoring invalid distribution -yinstaller (c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\site-packages)
    WARNING: Ignoring invalid distribution -yinstaller (c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\site-packages)
    WARNING: Ignoring invalid distribution -yinstaller (c:\users\administrator\appdata\local\packages\pythonsoftwarefoundation.python.3.10_qbz5n2kfra8p0\localcache\local-packages\python310\site-packages)
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如何解决：

1)找到“C:\Users\administrator\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\Scripts”路径下。

2）将_{yinstaller和}yinstaller-5.8.0.dist-info文件夹移动到其他路径。

重新再依次第一步和第二步。

4、又出现“which is not on PATH”警告。

     WARNING: The script streamlit.exe is installed in 'C:\Users\administrator\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\Scripts' which is not on PATH.
      Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
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5、解决方案

原因为环境变量问题！需要修改环境变量。
修改环境变量重新启动后就可以了。