[Tutor] Iterators and Generators...

[Neil Schemenauer]

Marc Barry wrote:
> I have a class which is an iterator, but I can't figure out why it is not 
> working.

This is probably what you want:

    class list_iterator:

            def __init__(self, a_list):
                    self.a_list = a_list

            def __iter__(self):
                    for i in self.a_list:
                            yield i

A function containing a 'yield' statement returns a generator when it is
called.  Calling '.next()' on that generator object starts executation
of the function body until a yield statement is reached (and so on).  If
the end of the function is reached then StopIteration is raised.

HTH,

  Neil