configure pip to use python 3 code example

Example 1: install pip3

sudo apt install python3-pip

Example 2: install pip in python

python get-pip.py

Example 3: sudo pip3 install

[server]$ pip3 --version
pip 18.1 from /home/username/opt/python-3.6.2/lib/python3.6/site-packages/pip (python 3.6)

Example 4: pip install python 3

python -m pip install <package>

#Download Selenium
python -m pip install selenium