To import a Python file, you can use the import statement.
__init__.py is a special Python file that is used to indicate that the directory it is present in is a Python package.
setup.py is a Python script used to build and install Python packages.
The easiest way to remove all packages installed by pip is to use the command pip freeze to get a list of all installed packages, and then pipe that list to pip uninstall -y, like this: