check version in pip code example

Example 1: python pip version check

pip --version

Example 2: how to list all versions of pip in ubuntu using grep

sudo apt list --installed | grep screen

Example 3: get version package from pip

$ pip show Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe

Example 4: how to know the python pip module version

pip show module name