meet it

An `if` runs code only when its is `True`.

Picture a fork in the path with a sign: Is it Saturday? An if asks a condition like that. If the answer is yes, Python takes the path and runs the lines inside. If not, it walks straight past.

Python answers every condition with True or False. A value that can only be one of these two is a . To ask whether two values match, use two equals signs, ==. One = puts a value in a box.

The if line ends with a colon. The lines inside start with four spaces. That tells Python which lines belong to the if.

day = "Saturday"
print(day == "Saturday")
if day == "Saturday":
    print("Pancakes for breakfast!")
print("Time to get dressed.")

Lines without indentation sit outside the if, so they run every time.

guess first

Rain or shine? Guess what this shows.

Guess before you run it. Wrong guesses are how you learn, and nothing is marked.

weather = "sunny"
if weather == "rainy":
    print("Take a coat.")
print("Off you go!")

your turn

Your turn. Get past the robot door.

The robot only opens for its owner. Type your name in both boxes, spelled exactly the same, then press run.

Your code

press run to see what happens

fix it

The quiz has crashed. Can you fix it?

Broken code to fix

press run to see what happens

Python stopped at the if line. Look at the sign between answer and "Paris".
One = puts a value in a box. To ask whether two values match, you need two.
Change = to == on line 2, then press run.

nailed it

your code can make choices now. :D

if runs its indented lines only when the condition is True.
Use == to ask whether two values match.
End the if line with a colon, then indent.

new words in your collection

condition
boolean
indentation

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An if runs code only when its condition is True.

Rain or shine? Guess what this shows.

Your turn. Get past the robot door.

The quiz has crashed. Can you fix it?

your code can make choices now. :D

An `if` runs code only when its is `True`.