Chapter 4b - Conditionals

if runs a block only when the test is true. else runs when it is not.

if n == 1:
    print("Outside is hot")
else:
    print("not hot")

🧪 Try it

Mini quiz — if and else

Quiz

if and else

1 / 2

If n is 1, which branch runs?

if n == 1:
  print("Outside is hot")
else:
  print("not hot")

Pick an answer to see if you are right.

Zodiac project

Project 4b

Challenge: weather line

Write weather(n) so it returns "hot" if n is 1, otherwise "cool".

Even and odd

n % 2 == 0 means even.

Mini quiz — if

Quiz

if

1 / 2

What does else do?

Pick an answer to see if you are right.

Exercises

Activity: Even or odd

Write label(n) so it returns even or odd.