When a package is installed globally, it's made available to all users that log into the system. Typically, that means Python and all packages will get installed to a directory under /usr/local/bin/ for a Unix-based system, or \Program Files\ for Windows.
Where are Python packages installed manually?
Usually in /lib/site-packages in your Python folder. (At least, on Windows.) You can use sys. path to find out what directories are searched for modules.