Python In Practice - 15 Projects to Master Python - Functions in Python and Defining Our Own

The video tutorial introduces basic Python functions, focusing on the print and input functions for terminal interaction. It explains how to create a simple product function using the 'def' keyword, including naming conventions, code blocks, and syntax. The tutorial demonstrates calling functions and executing them in Python, using a product function as an example. Additionally, it covers defining and using another function to print a greeting message multiple times, illustrating the basic functioning of user-defined functions in Python.

How can you call a function that you have defined?

What happens when you run a program that contains a function?