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pip 命名备忘录

pip 是一个现代的，通用的 Python 包管理工具。提供了对 Python 包的查找、下载、安装、卸载的功能。最新版本是 21.0.1

可以访问网站：

Python官网下载 Python 最新版本：  最新版本是 3.9.1

下载安装好Python后，在 3.9.1 版本中自动集成了 pip 命令。

可以通过下面的命令查看pip的版本：

C:\Users\think>pip -Vpip 20.2.3 from c:\program files\python39\lib\site-packages\pip (python 3.9)

使用下面的命令，可以查看pip命令的使用方法

C:\Users\think>pip --helpUsage:  pip  [options]Commands:  install                     Install packages.  download                    Download packages.  uninstall                   Uninstall packages.  freeze                      Output installed packages in requirements format.  list                        List installed packages.  show                        Show information about installed packages.  check                       Verify installed packages have compatible dependencies.  config                      Manage local and global configuration.  search                      Search PyPI for packages.  cache                       Inspect and manage pip's wheel cache.  wheel                       Build wheels from your requirements.  hash                        Compute hashes of package archives.  completion                  A helper command used for command completion.  debug                       Show information useful for debugging.  help                        Show help for commands.General Options:  -h, --help                  Show help.  --isolated                  Run pip in an isolated mode, ignoring environment variables and user configuration.  -v, --verbose               Give more output. Option is additive, and can be used up to 3 times.  -V, --version               Show version and exit.  -q, --quiet                 Give less output. Option is additive, and can be used up to 3 times (corresponding to WARNING, ERROR, and CRITICAL                              logging levels).  --log 
   
                    Path to a verbose appending log.  --no-input                  Disable prompting for input.  --proxy 
    
                  Specify a proxy in the form [user:passwd@]proxy.server:port.  --retries 
     
               Maximum number of retries each connection should attempt (default 5 times).  --timeout 
      
                    Set the socket timeout (default 15 seconds).  --exists-action 
       
            Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.  --trusted-host 
        
          Mark this host or host:port pair as trusted, even though it does not have valid or any HTTPS. --cert 
         
           Path to alternate CA bundle. --client-cert 
          
            Path to SSL client certificate, a single file containing the private key and the certificate in PEM format. --cache-dir 
           
             Store the cache data in 
            
             . --no-cache-dir Disable the cache. --disable-pip-version-check Don't periodically check PyPI to determine whether a new version of pip is available for download. Implied with --no- index. --no-color Suppress colored output --no-python-version-warning Silence deprecation warnings for upcoming unsupported Pythons. --use-feature 
             
               Enable new functionality, that may be backward incompatible. --use-deprecated 
              
                Enable deprecated functionality, that will be removed in the future.
              
             
            
           
          
         
        
       
      
     
    
   

List package

C:\Users\think>py -m pip listPackage    Version---------- -------pip        20.2.3setuptools 49.2.1WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.You should consider upgrading via the 'C:\Program Files\Python39\python.exe -m pip install --upgrade pip' command.

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