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Re: A gnarly little python loop

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On Sat, Nov 10, 2012 at 3:58 PM, Roy Smith <roy@panix.com> wrote:
> I'm trying to pull down tweets with one of the many twitter APIs.  The
> particular one I'm using (python-twitter), has a call:
>
> data = api.GetSearch(term="foo", page=page)
>
> The way it works, you start with page=1.  It returns a list of tweets.
> If the list is empty, there are no more tweets.  If the list is not
> empty, you can try to get more tweets by asking for page=2, page=3, etc.
> I've got:
>
>     page = 1
>     while 1:
>         r = api.GetSearch(term="foo", page=page)
>         if not r:
>             break
>         for tweet in r:
>             process(tweet)
>         page += 1
>
> It works, but it seems excessively fidgety.  Is there some cleaner way
> to refactor this?

I'd do something like this:

def get_tweets(term):
    for page in itertools.count(1):
        r = api.GetSearch(term, page)
        if not r:
            break
        for tweet in r:
            yield tweet

for tweet in get_tweets("foo"):
    process(tweet)

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A gnarly little python loop Roy Smith <roy@panix.com> - 2012-11-10 17:58 -0500
  Re: A gnarly little python loop Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-10 16:17 -0700
  Re: A gnarly little python loop Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-11-11 00:23 +0000
  Re: A gnarly little python loop Steve Howell <showell@domaintools.com> - 2012-11-10 19:03 -0800
    Re: A gnarly little python loop Stefan Behnel <stefan_ml@behnel.de> - 2012-11-11 08:56 +0100
  Re: A gnarly little python loop rusi <rustompmody@gmail.com> - 2012-11-11 23:09 -0800
    Re: A gnarly little python loop rusi <rustompmody@gmail.com> - 2012-11-12 07:21 -0800
      Re: A gnarly little python loop Peter Otten <__peter__@web.de> - 2012-11-12 16:49 +0100
      Re: A gnarly little python loop Steve Howell <showell30@yahoo.com> - 2012-11-12 08:09 -0800
        Re: A gnarly little python loop rusi <rustompmody@gmail.com> - 2012-11-12 20:14 -0800

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