how to add modules to python code example

Example 1: how to install python libraries

python -m pip install SomePackage

Example 2: how to install modules in python

# In cmd.exe type:     
pip install #module_name

Example 3: 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