Yes, every generator is an iterator (but not viceversa) and you can iterate over an iterator.
An iterator is one object that implements the Python iterator protocol. Thanks, Raúl On Wed, Jul 9, 2014 at 7:59 PM, <steve10br...@comcast.net> wrote: > > > ------------------------------ > > I guess my higher level question is: "what makes this function iterable?" > and the answer appears to be the fact that it > uses a generator instead of a return function. Is that correct? > > -Steve Tenbrink > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 9 Jul 2014 16:24:46 +0100 > From: Ra?l Cumplido <raulcumpl...@gmail.com> > To: steve10br...@comcast.net > Cc: tutor <tutor@python.org> > Subject: Re: [Tutor] How does this work (iterating over a function)? > Message-ID: > <CAD1Rbrou1hDfxkBeJcB97361uwyNYq8tW7REk= > mhuavjenn...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > > Hi, > > A little bit more on this :) > > Python iterator protocol will call the next() method on the iterator on > each iteration and receive the values from your iterator until a > StopIteration Exception is raised. This is how the for clause knows to > iterate. In your example below you can see this with the next example: > > >>> gen = fibonacci(3) > >>> gen.next() > 0 > >>> gen.next() > 1 > >>> gen.next() > 1 > >>> gen.next() > 2 > >>> gen.next() > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > StopIteration > >>> > > Thanks, > Ra?l > > > > > > -- > Ra?l Cumplido > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://mail.python.org/pipermail/tutor/attachments/20140709/ccbbee12/attachment-0001.html > > > > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > > -- Raúl Cumplido
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