CentOS / Ubuntu 安装 pip。 解决 -bash: pip: command not found 错误
执行：
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
sudo python get-pip.pySuccessfully installed pip-19.3.1 setuptools-41.4.0 wheel-0.33.6
CentOS / Ubuntu 安装 pip。 解决 -bash: pip: command not found 错误
执行：
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
sudo python get-pip.pySuccessfully installed pip-19.3.1 setuptools-41.4.0 wheel-0.33.6