What is an If Statement?

An if statement lets you run certain code only if a condition is true.

Example:‍

age = 21
if age >= 18:    
	print("You are an adult.")

The code inside the if block only runs when the condition is true. Note the colon (:) at the end of the if line and the indentation (usually 4 spaces) for the code inside the block.

Combining Conditions with Logic Operators

You can combine multiple conditions using logical operators:

• and: Both conditions must be true
  if age >= 18 and age < 65:
• or: At least one condition must be true
  if age < 18 or age > 65:
• not: Reverses a condition
  if not is_logged_in:

Example:‍

age = 21
has_id = True
if age >= 18 and has_id:    
	print("Access granted.")

NOTE: Ensure your code is tabbed in like the above examples otherwise Python will return an error!