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Author	pitrou
Recipients	barry, eli.bendersky, eric.smith, ethan.furman, mrabarnett, pitrou, r.david.murray, rhettinger, theller, tim.peters, vstinner
Date	2013年09月09日.20:44:58
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1378759496.2502.14.camel@fsol>
In-reply-to	<1378759279.34.0.459892033294.issue18986@psf.upfronthosting.co.za>

Content
> I also note that defaultdict is implemented via a special method on > dict itself (__missing__), and if this one was implemented the same > way it would be easy to combine the features. It's not that simple: to remember the original casing you need either a second container, or to use (original_key, value) tuples as values. Both approaches have non-trivial repercussions on the implementation of many methods.

Content

> I also note that defaultdict is implemented via a special method on
> dict itself (__missing__), and if this one was implemented the same
> way it would be easy to combine the features.
It's not that simple: to remember the original casing you need either a
second container, or to use (original_key, value) tuples as values. Both
approaches have non-trivial repercussions on the implementation of many
methods.

History
Date	User	Action	Args
2013年09月09日 20:44:59	pitrou	set	recipients: + pitrou, tim.peters, barry, theller, rhettinger, vstinner, eric.smith, mrabarnett, r.david.murray, eli.bendersky, ethan.furman
2013年09月09日 20:44:59	pitrou	link	issue18986 messages
2013年09月09日 20:44:58	pitrou	create

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