Answers for "how to create a env in python"

how to create a new virtualenv

to make a new virtualenv: 
virtualenv env_name

             to activate this virtual environment:
source env_name/bin/activate (on mac and linux)
source env_name/Scripts/activate (on windows)

how to use virtual environment python

python3 -m pip install --user virtualenv

create an env in python

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

c:>python -m venv c:pathtomyenv