for & range()

Level 16 of 50 · Decisions & loops

Level 16 of 50

for & range()

explained with school punishment. Watch the reel, then work through it below: run the code, take the quiz, keep the cheat sheet.

📒 Open the cheat sheet

SanaSir said: write 'I will not talk' 100 times!

Teacher100 times? Python does it in 2 lines! Meet the for loop!

lines.py

for i in range(3):
    print("Line", i)

Teacherrange(3) gives 3 numbers. The loop runs once for each!

SanaWait, why does it start at 0?

lines.py

for i in range(1, 4):
    print("Line", i)

Teacherrange starts at 0 and stops BEFORE the end! Want 1 to 3? Write range(1, 4)!

⏸ Pause & predict: what prints?

mangoes = 0

for i in range(1, 4):
    mangoes += i

print(mangoes)

Next: break & continue →← while loop

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