[Python-3000] PEP 3106: Revamping dict.keys(), .values() and .items() (original) (raw)

Brett Cannon brett at python.org
Wed Dec 20 23:11:25 CET 2006

On 12/19/06, Guido van Rossum <guido at python.org> wrote:

I've written a quick version of PEP 3106, which expresses my ideas about how the dict methods to access keys, values and items should be redone. The text is in svn: http://svn.python.org/view/peps/trunk/pep-3106.txt?rev=53096&view=markup At some point it will appear on python.org: http://python.org/dev/peps/pep-3106/ Comments please? (Or we can skip the comments and go straight to the implementation stage. Patch anyone?)

To comment on the open issues, I don't see why they can't be exposed and be subclassable. Couldn't they go in the collections module? And as for subclassing, I don't see how that would hurt anything.

As for the names, could go with MappingKeysView or something. It's wordy, but you know what the classes are by name alone. Otherwise I would go with dict_keys or something so that the repr of these things is makes it easy to know what they are.

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