Answers for "create environment for python"

python create environment variable

import os
os.environ['variable_name'] = 'variable_value'

making a virtual environment python

# First install virtualenv
!pip3 install virtualenv

# Go to the desired directory which you wish you run your virtual environment.
cd project_directory

# create a virtual environment called my_virtualenv
virtualenv my_virtualenv

### to run the virtual environemt run "activate" as in the following command
.my_virtualenvScriptsactivate