The return statement is used inside a function to send a result back to the place where the function was called.

When Python reaches a return statement, the function stops executing and sends the value back.

WHY USE RETURN?

• To get output from a function
• To reuse calculated results
• To make functions more useful and flexible

BASIC SYNTAX

def function_name():
    return value

EXAMPLE 1: SIMPLE RETURN

def add(a, b):
    return a + bresult = add(5, 3)
print(result)

The function calculates the sum and returns 8.

WITHOUT RETURN VS WITH RETURN

Without Return

def add(a, b):
    print(a + b)result = add(5, 3)
print(result)

Output:
8
None

Because the function does not return anything, Python automatically returns None.

With Return

def add(a, b):
    return a + bresult = add(5, 3)
print(result)

Output:
8

RETURNING MULTIPLE VALUES

A function can return multiple values separated by commas.

def calculate(a, b):
    sum_value = a + b
    diff_value = a - b
    return sum_value, diff_valueresult = calculate(10, 5)
print(result)

Python returns them as a tuple.

You can also unpack them:

sum_result, diff_result = calculate(10, 5)
print(sum_result)
print(diff_result)

RETURNING BOOLEAN VALUES

def is_even(num):
    return num % 2 == 0print(is_even(4))

This function returns True if the number is even.

IMPORTANT POINTS

• A function stops immediately after return
• Code written after return inside the same block will not execute
• If no return is written, Python returns None by default

Example:

def test():
    return "Hello"
    print("This will not run")

WHY RETURN IS IMPORTANT

• Allows functions to produce reusable output
• Helps in performing calculations and storing results
• Essential for building structured and professional programs

Understanding the return statement is key to writing efficient and functional Python programs.