On 2013年04月04日, at 16:47 , Chris Angelico wrote: > Sure, I could override __new__ to do stupid things
Or to do perfectly logical and sensible things, such as implementing "cluster classes" or using the base class as a factory of sorts. > in terms of logical expectations, I'd expect > that Foo(x) will return a Foo object, not a Bar object. The problem is the expectation of what "a Foo object" is: type-wise, any Bar object is also a Foo object. I would not expect Foo() to return an object of a completely unrelated type, but returning an object of a subtype? That does not seem outlandish. _______________________________________________ Python-Dev mailing list [email protected] http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com