Message 234413 - Python tracker

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Author	gvanrossum
Recipients	Jeff.Kaufman, Joshua.Landau, NeilGirdhar, Rosuav, SpaghettiToastBook, andybuckley, belopolsky, berker.peksag, eric.araujo, eric.snow, ezio.melotti, georg.brandl, giampaolo.rodola, gvanrossum, ncoghlan, paul.moore, pconnell, r.david.murray, terry.reedy, twouters, zbysz
Date	2015-01-20.23:58:24
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<CAP7+vJK+P=dkKzf5oQ71y1pJvcRU021ufqwQyPV9N3tP3H0uYw@mail.gmail.com>
In-reply-to	<[email protected]>

Content
Let's tread careful here. In regular dicts, for better or for worse, {'x': 1, 'x': 2} is defined and returns {'x': 2}. But in keyword arg processing, duplicates are always rejected. This may be an area where we need to adjust the PEP to match that expectation. On Tue, Jan 20, 2015 at 3:51 PM, Neil Girdhar <[email protected]> wrote: > > Neil Girdhar added the comment: > > Why is that correct? The PEP mentions overriding. Right now each dict > overrides values from the last silently, which I think makes sense. The > keyword arguments you pass in override keys from previous dicts (also good > I think). The problem is that you can pass multiple duplicate keyword > arguments, and the one below, which I think should succeed. > > ---------- > > _______________________________________ > Python tracker <[email protected]> > <http://bugs.python.org/issue2292> > _______________________________________ >

Let's tread careful here. In regular dicts, for better or for worse, {'x':
1, 'x': 2} is defined and returns {'x': 2}. But in keyword arg processing,
duplicates are always rejected. This may be an area where we need to adjust
the PEP to match that expectation.

On Tue, Jan 20, 2015 at 3:51 PM, Neil Girdhar <[email protected]>
wrote:

>
> Neil Girdhar added the comment:
>
> Why is that correct?  The PEP mentions overriding.  Right now each dict
> overrides values from the last silently, which I think makes sense.  The
> keyword arguments you pass in override keys from previous dicts (also good
> I think).  The problem is that you can pass multiple duplicate keyword
> arguments, and the one below, which I think should succeed.
>
> ----------
>
> _______________________________________
> Python tracker <[email protected]>
> <http://bugs.python.org/issue2292>
> _______________________________________
>

History
Date	User	Action	Args
2015-01-20 23:58:24	gvanrossum	set	recipients: + gvanrossum, twouters, georg.brandl, terry.reedy, paul.moore, ncoghlan, belopolsky, giampaolo.rodola, ezio.melotti, eric.araujo, andybuckley, r.david.murray, zbysz, eric.snow, Rosuav, berker.peksag, Joshua.Landau, pconnell, NeilGirdhar, Jeff.Kaufman, SpaghettiToastBook
2015-01-20 23:58:24	gvanrossum	link	issue2292 messages
2015-01-20 23:58:24	gvanrossum	create