ubuntu 安装pip

首先把python默认版本设置为你当前的python
可以参考 修改默认python版本

下载 pip.py

下载完之后
python get-pip.py

就可以了

如果报：

Traceback (most recent call last):
  File "get-pip.py", line 22711, in <module>
    main()
  File "get-pip.py", line 198, in main
    bootstrap(tmpdir=tmpdir)
  File "get-pip.py", line 82, in bootstrap
    from pip._internal.cli.main import main as pip_entry_point
  File "/tmp/tmpyi_284p1/pip.zip/pip/_internal/cli/main.py", line 10, in <module>
  File "/tmp/tmpyi_284p1/pip.zip/pip/_internal/cli/autocompletion.py", line 9, in <module>
  File "/tmp/tmpyi_284p1/pip.zip/pip/_internal/cli/main_parser.py", line 7, in <module>
  File "/tmp/tmpyi_284p1/pip.zip/pip/_internal/cli/cmdoptions.py", line 19, in <module>
ModuleNotFoundError: No module named 'distutils.util'

执行
sudo apt-get install python3-distutils

再执行
python get-pip.py
就可以了

查看pip版本
pip --version

更新pip
sudo pip install -U pip