wget --no-check-certificate https://pypi.python.org/packages/source/p/pip/pip-8.0.2.tar.gz#md5=3a73c4188f8dbad6a1e6f6d44d117eeb
tar -zxvf pip-8.0.2.tar.gz
cd pip-8.0.2
python3 setup.py build
python3 setup.py install
python3 switches the corresponding commands according to your local environment, here my python3 command is softly connected to my Python environment
After the installation is successful, you can execute
/usr/local/python/bin/pip3
Check whether the installation is successful.
After the installation is successful, create a soft connection
ln -s /usr/local/python/bin/pip3 /usr/bin/pip3