Python's built in range function is designed to be used
in conjunction with 0-based indexing. (Documentation
for range is available on the web.) Since the designers of JES made the
decision to use 1-based indexing for images and sounds, it will be
convenient for us to use an alternative to the built
in range function called
range1. Here is the code for our alternative implementation:
#range1 - Alternative to built in range function for 1 based indexing.
#The default starting point is 1 rather than 0.
#The ending point is increased by 1 relative the the built in range function.
#Examples:
#>>>range1(2) #returns [1, 2]
#>>>range1(2, 4) #returns [2, 3, 4]
#>>>range1(2, 6, 2) #returns [2, 4, 6]
#Nathan Sprague 1/16/09
def range1(*args):
if len(args) == 1:
return range(1,args[0] + 1)
if len(args) == 2:
return range(args[0], args[1] + 1)
if len(args) == 3:
return range(args[0], args[1] + 1, args[2])
You can make use of this function by copying and pasting it into
your .py file.
range1 as a
built in function: