Having a class that returns instances of some other class is horrible, but since you asked for it:
class A(object): pass
class B(object): pass
class Foo(object):
def __new__(cls, arg):
if arg=="a":
return A()
else:
return B()
print Foo("a")
print Foo("b")
Michele Simionato
P.S. don't do it!
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