On Fri, Apr 27, 2012 at 12:00 AM, Adam Skutt <[email protected]> wrote:
> C# and Python do have a misfeature: '==' is identity comparison only
> if operator== / __eq__ is not overloaded. Identity comparison and
> value comparison are disjoint operations, so it's entirely
> inappropriate to combine them.
So what should happen if you don't implement __eq__? Should the ==
operator throw an exception? This can be done fairly easily:
class object(object):
def __eq__(self,other):
raise NoYouDontException("Naughty programmer, mustn't do that!")
(Works only if you always explicitly subclass object, even though
that's not necessary in Python 3.)
ChrisA
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