# 3.13 Built-In Function `range`: A Deeper Look¶

- Function `range`’s two-argument version produces a sequence of consecutive integers from its first argument’s value up to, but not including, the second argument’s value

In [1]:

    for number in range(5, 10):
        print(number, end=' ')

    5 6 7 8 9

- Function `range`’s three-argument version produces a sequence of integers from its first argument’s value up to, but not including, the second argument’s value, incrementing by the third argument’s value (the step)

In [2]:

    for number in range(0, 10, 2):
        print(number, end=' ')

    0 2 4 6 8

- If the third argument is negative, the sequence progresses from the first argument’s value down to, but not including the second argument’s value, decrementing by the third argument’s value

In [3]:

    for number in range(10, 0, -2):
        print(number, end=' ')

    10 8 6 4 2

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