Python Setup file

Question

What does the setup.py file do?

Answer 1

 setup.py tells you that the module or the package that is going to be installed has been packaged and distributed with Distutils, which provides support for building and installing additional modules into a Python installation. It's functionality is very similar to that of pip. 

For installing a module, it is enough to simply run this file by typing:

python setup.py install

and the module is installed by itself.