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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