Isolating the runtime environment
When you use pip to install a new package from PyPI, it will be installed into one of the available site-packages directories. The exact location of site-packages directories is specific to the operating system. You can inspect paths where Python will be searching for modules and packages by using the site module as a command as follows:
$ python3 -m site
The following is an example output of running python3 -m site on macOS:
sys.path = [
'/Users/swistakm',
'/Library/Frameworks/Python.framework/Versions/3.9/lib/python39.zip',
'/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9',
'/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/lib-dynload',
'/Users/swistakm/Library/Python/3.9/lib/python/site-packages',
'/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages',
]
USER_BASE: '/Users/swistakm/Library...
