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Date: Tue, 25 Feb 2014 16:10:34 -0600
From: Tim Chase <python.list@tim.thechases.com>
To: python-list@python.org
Subject: Re: intersection, union, difference, symmetric difference for dictionaries
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Xref: csiph.com comp.lang.python:67067

On 2014-02-25 22:54, Peter Otten wrote:
> Tim Chase wrote:
> > If dicts were to support set ops, 
> 
> They do in 2.7 and 3.x.
> 
> >>> a.viewkeys() - b.viewkeys()
> set(['a'])
> >>> a.viewkeys() & b.viewkeys()
> set(['b'])
> >>> a.viewkeys() ^ b.viewkeys()
> set(['a', 'c'])
> >>> a.viewkeys() | b.viewkeys()
> set(['a', 'c', 'b'])
> 
> For 3.x replace viewkeys() with keys().

I missed this getting added in the 2.7 release.  Thanks for the
introduction to .viewkeys()/.keys() as they could prove quite handy.

-tkc