Part 1 — Definition

A Function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function. A function can return data as a result. Functions help in breaking a large program into small, manageable parts.

Part 2 — Syntax

def my_function(param):
    # code
    return result

my_function("val")

Part 3 — Example

Problem: Create a function that greets the user with their name.

def greet(name):
    print(f"Hello, {name}!")

greet("Ali")

Part 4 — Video

Video: Coming Soon

Part 1 — Definition

A Module is a file containing Python definitions and statements. You can use any Python source file as a module by executing an import statement in some other Python source file. This allows you to logically organize your Python code.

Part 2 — Syntax

import math
print(math.sqrt(16))

from random import randint
print(randint(1, 10))

Part 3 — Example

Problem: Generate a random dice roll.

import random

def roll_dice():
    return random.randint(1, 6)

print(f"You rolled: {roll_dice()}")

Observation: Using from module import function allows you to call the function directly without the module prefix.

Part 4 — Video

Video: Coming Soon