Python for Beginners - Part 4: Functions and Modules - Organizing and Reusing Code
Welcome to the final part of our Python coding course! We've covered the basics of Python syntax, control flow, and data structures. In this part, we'll learn about Functions and Modules , which are essential for writing organized, reusable, and scalable code. 1. Functions A function is a block of organized, reusable code that is used to perform a single, related action. Functions provide better modularity for your application and a high degree of code reusing. Defining a Function You define a function using the def keyword, followed by the function name, parentheses () , and a colon : . The code block inside the function is indented. # A simple function that prints a greeting def greet(): print("Hello, welcome to the course!") # Calling the function greet() # Output: Hello, welcome to the course! Function Arguments (Parameters) Information can be passed into functions as arguments. Arguments are specified after the function name, inside the parentheses. You ...