[Python-Dev] PEP needed for http://bugs.python.org/issue9232 ?

Alexander Walters tritium-list at sdamon.com
Tue Aug 11 17:35:40 CEST 2015

As a user who has banged my head against this more than once, its not a 
feature, its a bug, it does not need a pep (Guido said as much), just 
fix it.

On 8/11/2015 11:31, Chris Barker - NOAA Federal wrote:
>> there's been enough debate that I suspect we need a
>>> PEP.
>> I think we might just need another round of discussion here.
> Please no :-)
> Looking back at the previous discussion, it looked like it's all been
> said, and there was almost unanimous approval (with some key mild
> disapproval) for the idea, so what we need now is a pronouncement.
> If it's unclear whether consensus was close, then folks that are
> strongly against should speak up now. If there is a flurry of those,
> then a PEP is in order. But another big long unstructured discussion
> won't be useful.
> -Chris
>> I'm +1 myself.  Granted there haven't been many times I've wanted it
>> (functions with enough arguments to want to make it easy to add and
>> remove elements are a bit of a code smell), but I have wanted it (and
>> even used the form that is accepted) several times.  On the other hand,
>> the number of times when the detection of a trailing comma has revealed
>> a missing argument to me (Raymond's objection) has been...well, I'm
>> pretty sure it is zero.  Especially since it only happens *sometimes*.
>> Since backward compatibility says we shouldn't disallow it where it is
>> currently allowed, the only logical thing to do, IMO, is consistently
>> allow it.
>> (If you wanted to fix an 'oops' trailing comma syntax issue, I'd vote for
>> disallowing trailing commas outside of ().  The number of times I've
>> ended up with an unintentional tuple after converting a dictionary to a
>> series of assignments outnumbers both of the above :)  Note, I am *not*
>> suggesting doing this!)
>> --David
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