Working w/ Yield

[Javier Subervi]

Hi;
I'm trying to tweak a script I found here:
http://zopelabs.com/cookbook/1118667115
to get it to do what I want. I'm no wizard at Python, much less newfangled tools like yield. I understand that one cannot use "return" when working with yield, but I don't understand how to achieve the same result. Here's my code:

from random import randrange

def getRandomQuote(top, topdown=True):
  objs = top.objectValues()
  num = 1
  numAndQuote, quotes = [], []
  for obj in objs:
    if isdir(obj):
      dirs.append(obj)
    else:
      quotes.append(obj)
  if topdown:
    yield top, dirs, quotes
  for obj in dirs:
    for x in getRandomQuote(obj, topdown):
      yield x
  if not topdown:
    yield top, dirs, quotes
  for q in quotes:
    numAndQuote.append(num, q)
    num += num

def isdir(obj):
  if obj.meta_type == 'Folder':
    return True
  else:
    return False

def demo(self):
  root = self.restrictedTraverse('/theSite/en-us/Books')
  num = randrange(1, len(num), 1)
  luckyWinner = numAndQuote.pop(num)
  path = '/'.join(luckyWinner.getPhysicalPath()) or '/'
  return path

How can I stitch all this together to return the path? Or, how do I call the demo after executing the yield?
TIA,
Javier


 
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