built in create virtual env code example
Example 1: python virtual environment
python3 -m venv env
python -m virtualenv env
source env/bin/activate
Example 2: activate venv in python
(tutorial-env) $ pip search astronomy
skyfield - Elegant astronomy for Python
gary - Galactic astronomy and gravitational dynamics.
novas - The United States Naval Observatory NOVAS astronomy library
astroobs - Provides astronomy ephemeris to plan telescope observations
PyAstronomy - A collection of astronomy related tools for Python.
...