[Python-3000] PEP 368: Standard image protocol and class

["Martin v. Löwis"]

>> The only way to get compatibility between the libraries is to create
>> an image library in C _and_ get those libraries to start using it.
>>
> 
> They'll all quack the same way. (This is paraphrased in the PEP's 
> abstract, as far as I read it.)

To the Python side, yes. But to the underlying C library, some
quack, some bark.

How would you pass a Tkinter.PhotoImage to wxPython if both
supported the PEP? wxPython would likely be able to produce
objects that provide the Image interface, but I can't see how
wxPython could consume such a thing - the underlying C libraries
surely expect something completely different.

The only way I can see this work is if each library imports
Image objects by copying them, pixel for pixel, through this
interface.

Regards,
Martin