The import statement allows you to use the sys module for getting a command-line argument of the file, and the zipfile module loads in the functionality for reading and unzipping files. As you saw ...

This post explains what a Python module is and how to use it to drastically extend the capabiltiies of your code. Plus: how to make your own!

Since the creation of python reading in files has become much easier with each update and with each added package. To work with csv and xlsx files the easiest package is the pandas package because it ...