freeCodeCamp/guide/english/python/range-function/index.md

title
Range Method

Range Function

If you do need to iterate over a sequence of numbers, the built-in function range() comes in handy. It generates arithmetic progressions:

Example Usage

for i in range(5):
   print(i)

Output

0
1
2
3
4

Example with optional additional arguments

The first argument, start, is the starting number of the sequence.

The second argument, stop, means to generate numbers up to, but not including this number.

The third argument, step, is the amount to increment by. In other words, it's the difference between each number in the sequence. It defaults to 1 if step is not specified.

for i in range(3, 12, 2):
   print(i)

Output

3
5
7
9
11