range¶

Syntax¶

range(stop)
range(start, stop)
range(start, stop, step)

start: An expression that evaluates to a number. The value is truncated to an integer value.
stop: An expression that evaluates to a number. The value is truncated to an integer value.
step: An expression that evaluates to a number. The value is truncated to an integer value.

A list of integer values.

This action returns a list of integers from start and counting by step up to, but not including, stop.

If two arguments are supplied, then step = 1.

If one argument is supplied, then start = 0 and step = 1.

If step = 0, then a run-time error occurs.

If step > 0 and stop <= start, then the resulting list is empty.

If step < 0 and start <= stop, then the resulting list is empty.

Each of the following statements sets my_list to list(0, 1, 2):

my_list = range(0,3,1)
my_list = range(0,3)
my_list = range(3)

The following statement sets my_list to list(1, 0, -1):

my_list = range(1,-2,-1)

This example sets index_list to the index values for x_list. The result is that index_list is set to list(0, 1, 2)

x_list = list(10, 20, 30)
index_list = range(length(x_list))