4 Apr
2013
4 Apr
'13
10:01 a.m.
On Fri, Apr 5, 2013 at 1:59 AM, Guido van Rossum <guido@python.org> wrote:
On Thu, Apr 4, 2013 at 7:47 AM, Chris Angelico <rosuav@gmail.com> wrote:
Is there any argument that I can pass to Foo() to get back a Bar()? Would anyone expect there to be one? Sure, I could override __new__ to do stupid things, but in terms of logical expectations, I'd expect that Foo(x) will return a Foo object, not a Bar object. Why should int be any different? What have I missed here?
A class can define a __new__ method that returns a different object. E.g. (python 3):
Right, I'm aware it's possible. But who would expect it of a class? ChrisA