[Tutor] making object iterable

[Alex Hall]

Hi all,
I have a class which has a list as an attribute, meaning you must say
something like:
for result in obj.results: ...
I want to make life a bit easier and let users just say:
for result in obj: ...
Here is what I have tried to make my class into an iterable one, yet I
get an error saying that the class does not support indexing:

 def __iter__(self):
  #makes this class indexable instead of having to use its "results" list
  return self.iterate()

 def iterate(self):
  i=0
  while i<len(self.results):
   yield self.results[i]
   i+=1

I am not sure why this does not work, unless I am misunderstanding
something about iterators and iterables? I thought an iterable, which
is what I am shooting for, was an iterator on steroids, allowing
indexing, multiple passes over the list, and all that. Do I want to
make this an iterator instead of an iterable?


-- 
Have a great day,
Alex (msg sent from GMail website)
mehgcap at gmail.com; http://www.facebook.com/mehgcap