ModuleNotFoundError: No module named 'pip._vendor.six'
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py python get-pip.py --force-reinstall

验证是否装成功:
pip show pip

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py python get-pip.py --force-reinstall

验证是否装成功:
pip show pip
