pip更新报错问题

pip更新错误如下:

WARNING: You are using pip version 20.1.1; however, version 20.2 is available.
You should consider upgrading via the 'd:\python3.7\anaconda3\python.exe -m pip install --upgrade pip' command.

解决办法:

python -m pip install --upgrade pip

如下

C:\Users\haiy
λ python -m pip install --upgrade pip
Collecting pip
  Downloading pip-20.2.1-py2.py3-none-any.whl (1.5 MB)
     |████████████████████████████████| 1.5 MB 30 kB/s
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 20.1.1
    Uninstalling pip-20.1.1:
      Successfully uninstalled pip-20.1.1
Successfully installed pip-20.2.1

20.1.1更新20.2.1成功

C:\Users\haiy
λ pip --version
pip 20.2.1 from e:\python37\lib\site-packages\pip (python 3.7)

 如果更新还是不成功，建议采用离线下载pip安装包

离线下载地址：PyPI · The Python Package Index

下载好了解压后进入目录，执行下列命令

python setup.py install

然后检查版本

pip --version

如果发现版本未改变，则进入D:\python3.9.7\Lib\site-packages目录找到之前的pip文件夹进行删除，同时查看新安装的pip文件是否生成

然后重启cmd窗口，执行

pip --version