On Jul 24, 5:20 am, Bruno Desthuilliers <bruno. [EMAIL PROTECTED]> wrote: > IIRC, __new__ is supposed to return the newly created object - which you > are not doing here. > > class Bar(Foo): > def __new__(cls, a, b, c, *args): > print 'Bar.__new__', len(args) > if not args: > cls = Zoo > obj = super(Bar, cls).__new__(cls, a, b, c, *args) > if not args: > obj.__init__(a, b, c, 7) > return obj
Thanks guys, but you are right Bruno, you have to return the newly created object or you get: >>> b = Bar(1,2,3) Bar.__new__ 0 Foo.__new__ 3 Zoo.__init__ 4 Foo.__init__ 3 >>> b is None True However, if you return the object you get: >>> b = Bar(1, 2, 3) Bar.__new__ 0 Foo.__new__ 3 Zoo.__init__ 4 Foo.__init__ 3 Traceback (most recent call last): File "<input>", line 1, in <module> TypeError: __init__() takes exactly 5 arguments (4 given) Which is the same blasted error, because it seems to want to call init on the returned object and it's calling it with 4 args :( Is there any way around that? Thanks, -Sandra -- http://mail.python.org/mailman/listinfo/python-list
