If Statement in Python

What is an If Statement?

The if statement allows you to execute a block of code only if a specified condition is true. It is a fundamental decision-making structure in Python.

Syntax

if condition:
    # code to execute if condition is True

Example

age = 18
if age >= 18:
    print("You are eligible to vote.")

How It Works

The condition inside the if statement is evaluated. If it is true, the indented block of code under it runs. Otherwise, it is skipped.

Additional Examples

# Example 1
num = 10
if num > 0:
    print("Positive number")

# Example 2
temperature = 35
if temperature > 30:
    print("It's a hot day")

# Example 3
name = "Alice"
if name == "Alice":
    print("Hello, Alice!")

# Example 4
score = 75
if score >= 50:
    print("You passed!")

# Example 5
is_raining = False
if not is_raining:
    print("Let's go for a walk!")