Generally, python comes with Linux

Python View Version

 python -V

Step 1

If the pip version does not match the python version, an error will be prompted,

Python version>=36

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

Python version==27

 curl  https://bootstrap.pypa.io/pip/2.7/get-pip.py  -o get-pip.py

Step 2

 python get-pip.py

reference resources:

https://pip.pypa.io/en/stable/installing/