bug with itertools.groupby?
Raymond Hettinger
python at rcn.com
Tue Oct 6 20:04:16 EDT 2009
On Oct 6, 4:06 pm, Kitlbast <vlad.shevche... at gmail.com> wrote:
> Hi there,
>
> the code below on Python 2.5.2:
>
> from itertools import groupby
>
> info_list = [
> {'profile': 'http://somesite.com/profile1', 'account': 61L},
> {'profile': 'http://somesite.com/profile2', 'account': 64L},
> {'profile': 'http://somesite.com/profile3', 'account': 61L},
> ]
>
> grouped_by_account = groupby(info_list, lambda x: x['account'])
> for acc, iter_info_items in grouped_by_account:
> print 'grouped acc: ', acc
>
> gives output:
>
> grouped acc: 61
> grouped acc: 64
> grouped acc: 61
>
> am I doing something wrong?
Try another variant of groupby() that doesn't require the data to be
sorted:
http://code.activestate.com/recipes/259173/
Raymond
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