use env in python code example

Example 1: python env

python3 -m venv tutorial-env
tutorial-env\Scripts\activate.bat (window)
source tutorial-env/bin/activate (linux)

Example 2: create an env in python

if you configured the PATH and PATHEXT variables for your Python installation:

c:\>python -m venv c:\path\to\myenv

Example 3: how to activate the pytho virtual environment

mypthon\Scripts\activate