Upgrade PIP and install Libraries

  Use today pip Install some common libraries , Then the following code appears .

Need to upgrade pip

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       WARNING: You are using pip version 20.3.1; however, version 21.3.1 is available.
       
       
You should consider upgrading via the 'c:\program files\python\python.exe -m pip install --upgrade pip' command
      
      
      
      

       
       
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Reference resources

​ ​ Alibaba open source mirror site ​​

First, switch to domestic Alibaba pypi Mirror source

a. Find the following files (windows Catalog ：C:\Users\Administrator)

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       ~/.pip/pip.conf
      
      
      
      

       
       
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b. Add or modify... In the above documents :

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       [global]
       
       
index-url = https://mirrors.aliyun.com/pypi/simple/
       
       

       
       
[install]
       
       
trusted-host=mirrors.aliyun.com
      
      
      
      

       
       
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Then upgrade pip

cmd The input ：python -m pip install --upgrade pip

ok

Then you can continue to use pip install xxxxx Install the Library