On Mar 15, 2009, at 2:48 PM, Greg Ewing wrote: > Stefan Behnel wrote: >> Carl Witty wrote: >> >>> Hmm... I hope that eventually Cython will allow overriding >>> __new__, at >>> which point calling an extension type won't necessarily return a >>> value >>> of that type. >> >> I'm not sure. This should certainly be supported for Python >> classes, but >> for extension types? What would be the use case? > > If it is supported, it could perhaps be handled by allowing > the return type of the __new__ method to be declared explicitly, > defaulting to the class. E.g. given > > cdef class Foo: > def __new__(cls, ..): > ... > > then Foo() is assumed to return something of type Foo, but > given > > cdef class Blarg: > def object __new__(cls, ..): > ... > > then Blarg() could return any type of object.
This sounds like a good syntax. - Robert _______________________________________________ Cython-dev mailing list Cython-dev@codespeak.net http://codespeak.net/mailman/listinfo/cython-dev
