install pip for python 2 code example

Example 1: install pip ubuntu

sudo apt install python3-pip

Example 2: how to install python 2

$ sudo apt install python2
OR
$ sudo apt install python-minimal #is working

Example 3: pip install for python 2 and python3

$ curl -O https://bootstrap.pypa.io/get-pip.py
$ sudo python3.2 get-pip.py