if — Easy Examples

Starts a conditional statement; executes block only if condition is true

EasyIntermediateAdvancedExpert

Basic conditional

Using if to make decisions.

python
temperature = 35

if temperature > 30:
    print("It's hot!")

x = 10
if x > 0:
    print("Positive")
elif x == 0:
    print("Zero")
else:
    print("Negative")
Expected Output
It's hot!
Positive

if evaluates a condition. The indented block runs only when the condition is True.

If with user input checking

Validating values with conditionals.

python
age = 17

if age >= 18:
    status = "adult"
elif age >= 13:
    status = "teenager"
else:
    status = "child"

print(f"Age {age}: {status}")

# Checking membership
fruits = ["apple", "banana", "cherry"]
item = "banana"
if item in fruits:
    print(f"{item} is in the list")
Expected Output
Age 17: teenager
banana is in the list

if works with any expression that evaluates to True or False, including comparisons, membership tests, and truthiness checks.

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