Functions in Python

In the previous lesson, we learned about Loops and how they help repeat blocks of code efficiently. Today, we will learn about Functions, which are used to organize and reuse code in Python programs.

Functions are very important because they make programs cleaner, easier to manage, and reusable.

What are Functions?

A Function is a block of code that performs a specific task.

Instead of writing the same code multiple times, a function allows you to write it once and reuse it whenever needed.

Why Functions are Important

Functions help programmers:

Reduce code repetition

Improve readability

Organize programs

Reuse code

Simplify debugging

Make programs modular

Defining a Function

Python uses the "def" keyword to create functions.

Syntax

def function_name (): # code block

Enter fullscreen mode

Exit fullscreen mode

Example

def greet (): print ( " Welcome to Python " )

Enter fullscreen mode

Exit fullscreen mode

This function is created but will not run until it is…