[Python-Dev] performance of {} versus dict()

Wed Nov 14 22:24:14 CET 2012

On 2012年11月14日 21:20, MRAB wrote:
> On 2012年11月14日 20:53, Mark Adam wrote:
>> On Wed, Nov 14, 2012 at 1:37 PM, Xavier Morel <catch-all at masklinn.net> wrote:
>>> On 2012年11月14日, at 19:54 , Mark Adam wrote:
>>>>>>>> Merging of two dicts is done with dict.update.
>>>>>> No, dict.update merges one dict (or two) into a third one.
>>>> No. I think you need to read the docs.
>>>>>> How do you do it on
>>>> initialization? This doesn't make sense.
>>>>>> dict(d1, **d2)
>>>> That's not valid syntax is it?
>>> No.
>> You can have dict(d1) and dict(**d2), but not dict(d1, **d2).
>Oops, wrong! :-( (I see now where I went wrong...)