Description

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Beginner · 10 min

Counting with range

Repeat an action using a sequence of integers.

Start counting at zero

range(3) supplies the integers zero, one, and two. The stop value is excluded. It is useful for repeating a block a fixed number of times.

for number in range(3):
    print(number)

Output

0
1
2

Choose a start and step

range(start, stop, step) uses your start and increment, but still excludes the stop. Omitting the step uses one.

for number in range(2, 7, 2):
    print(number)

Output

2
4
6

Counting with range

  1. List the integers before running each loop.
  2. Check the excluded stop value.

Try it yourself

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Count tickets

Use range() and a loop to display 1, 2, 3, and 4 on separate lines.

Practice