Python range(a, b) function generates a sequence of numbers from: code example

Example 1: for i in range start

for i in range([start], stop[, step])

Example 2: range python start at 1

>>> def range1(start, end):
...     return range(start, end+1)
...
>>> range1(1, 10)
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]