[Python-Dev] counterintuitive behavior (bug?) in Counter with +=
Lars Buitinck
L.J.Buitinck at uva.nl
Fri Oct 7 10:53:47 CEST 2011
2011/10/6 Petri Lehtinen <petri at digip.org>:
> Lars Buitinck wrote:
>> >>> from collections import Counter
>> >>> a = Counter([1,2,3])
>> >>> b = a
>> >>> a += Counter([3,4,5])
>> >>> a is b
>> False
>
> Sounds like a good idea to me. You should open an issue in the tracker
> at http://bugs.python.org/.
Done that: http://bugs.python.org/issue13121
--
Lars Buitinck
Scientific programmer, ILPS
University of Amsterdam
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