Re: [Pyobjc-dev] Customizing trouble with NSCell & NSTableView

[<bb...@ma...>]

"Informal protocols" are effectively the set of all categories defined 
in the Framework headers where the category defines a set of methods 
that are typically used for delegation, notification, data sources, and 
other purposes where it is likely that the method is not actually 
implemented on your class's superclass (and, therefore, the signature 
will not be automatically found).

One very attractive advantage to PyObjC's implementation is that it can 
actually tell if a required method from an informal protocol has been 
implemented and will automatically warn the developer if not.

The set of informal protocols defined in Foundation.__init__ should be 
complete.

The set of informal protocols in AppKit is likely incomplete.   At 
least, I don't think it had the complete review that Foundation did.   
The following will give a [complete??] set of the various APIs that 
should likely end up as a part of an informal protocol declaration.

cd /System/Library/Frameworks/AppKit.framework/Headers/
grep '@interface NSObject' *.h

b.bum