Python Virtual Envs

Python virtual environments consists of a self-contained directory tree that contains a Python installation for a particular version of Python, plus a number of additional packages.

set the venv by

opening the terminal in the python project directory

create the venv, with the python version you wish, we'll use 3.7

python3.7 -m venv ./venv

activate the environment and should see (venv) in the shell prompt

source venv/bin/activate

now you can use pip to install or python to run the script, which will be always referencing to the python version you used to install the vev

later on when you wish to close the venv run:

deactivate