[Python-ideas] comparison of operator.itemgetter objects
jimjjewett at gmail.com
Thu Apr 5 18:03:34 CEST 2012
On Mon, Apr 2, 2012 at 5:38 AM, Steven D'Aprano <steve at pearwood.info> wrote:
> In general, I think that having equality tests fall back on identity test is
> so rarely what you actually want that sometimes I wonder why we bother.
Because identity ==> equality. (There are exceptions, like NaN, but
that behavior is buggy.) And for objects without a comparison
function, the most commonly made comparison (e.g., as a dict key) is
one where identity is desired.
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