Loops with a Stop Sign!
How many puffs does a party balloon need?
Real Python code
This is the code from the video. Read it out loud like a recipe, one line at a time!
air = 0
while air < 50:
air = air + 10
print("Puff!")
print("Party time!")Quiz time!
How many puffs does this code print?
air = 0
while air < 30:
air = air + 10
print("Puff!")Stop sign loops are everywhere
Games
Keep playing until the game is over
Loading
Keep loading until everything is ready
The bus stop
Keep waiting until the bus comes
AI training
Repeat practice rounds until the mistakes are small enough
Which loop do I need?
repeat 10
- You know the number
- Like: jump ten times
- Counts, then stops
repeat until
- You know the stop sign
- Like: puff until it's big
- Checks before every round
- Something inside must change
Know the number? repeat. Know the stop sign? repeat until!
Try it yourself!
In Scratch, make a sprite walk with repeat until touching edge, then say Made it!
Bit is working on the next one: Random numbers
