install pip linux lint code example

Example 1: linux install pip

apt-get install python-pip	#python 2
apt-get install python3-pip	#python 3

Example 2: install pip linux

//IF you have problem with your pip try the oldest one :]
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py; python get-pip.py
pip install xlrd --upgrade