how to pip3 install with setup.py code example

Example 1: pip install python 3

You cannot just pip install python3 because it is not a library.

If you want to install the latest python3:
https://www.python.org/ftp/python/3.8.2/python-3.8.2.exe

Example 2: pip install python 3

python -m pip install <package>

#Download Selenium
python -m pip install selenium