Re: [Pyobjc-dev] Pure python instance -> ObjC proxy incomplete?

[Ronald O. <ous...@ci...>]

On 15 okt 2003, at 19:30, b.bum wrote:

>
> In looking at OC_PythonObject.[hm], it would appear that it doesn't 
> implement all of the NSObject protocol.
>
> In particular, we are missing....
>
> - (BOOL)isEqual:(id)object;
> - (unsigned)hash;
>
> .... which is causing a bit of consternation when using mechanisms 
> that attempt to sort collections of objects contained in ObjC 
> collections.
>
> It would appear that isEqual: could be forwarded to the __eq__() 
> method on the Python side, but only if the object passed in is non-nil 
> and also an instance of OC_PythonObject?

isEqual should use 'PyTypeObject.richcmp'  (e.g. __eq__) if that is 
available and 'PyTypeObject.cmp' (__cmp__) otherwise. hash should use 
PyObject_Hash.

Ronald