Rewritine Online Python Tutor Example

# made for testing http://pythontutor.com/
# derived from the example at http://pythontutor.com/ on 2012-Oct.-02
# exceeds instruction limit when n>46
n = 46


def listMake(length):
  r = None
  c = length
  while 0 < c:
    r = ( c, r )
    c = c - 1
  return r

def listSum(numbers):
  r = 0
  q = numbers
  while q:
    (p,q) = q
    r = r + p
  return r


myList = listMake(n)
total = listSum(myList)