pip install <package name>
#This installs the files.
import <package name>
#This makes the classes and functions in the files ready for use in your Python project.
#Some packages are pre-installed, you can import them using import <package name> without installing them via pip install <package name>.
#This website has a list of pre-installed packages - https://docs.qubole.com/en/latest/user-guide/package-management/pkgmgmt-preinstalled-packages.html.