[Python-Dev] what is a dict_keys and where can I import it from? (original) (raw)

Andrew Svetlov andrew.svetlov at gmail.com
Tue Feb 12 11🔞21 CET 2013

Is collections.KeysView good for you?

On Tue, Feb 12, 2013 at 9:05 AM, Chris Withers <chris at simplistix.co.uk> wrote:

Hi all,

So, dicts in Python 3 return "something different" from their keys and values methods:

dict(x=1, y=2).keys() dictkeys(['y', 'x']) type(dict(x=1, y=2).keys()) <class 'dictkeys'> I have vague memories of these things being referred to as views or some such? Where can I learn more? More importantly, how can I tell if I have one of them? I guess I can keep a reference to type({}.keys()) somewhere, but that feels a bit yucky. Should these things be in the types module? cheers, Chris -- Simplistix - Content Management, Batch Processing & Python Consulting - http://www.simplistix.co.uk

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-- Thanks, Andrew Svetlov

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