[Pythonmac-SIG] PyObj-c question ...

Ronald Oussoren oussoren at cistron.nl
Wed Oct 8 05:22:55 EDT 2003

On 8 okt 2003, at 6:57, Stéphane Jolicoeur-Fidelia wrote:

> Hi,
> I have a quick question about pyobjc: I am trying to build examples 
> from a Cocoa programming book with pyobjc(i installed the latest 
> version and am working from Project builder). I created a document 
> based application and then proceeded to create MyDocument.h and 
> MyDocument.m . My question is if I actually implement some methods in 
> pure ObjC will the MyDocument.py  be able to see them and be able to 
> use them as is like any object method ? or will I just create useless 
> files in my project? (or maybe i should ask how do i create a python 
> object that is callable from objc? (I have seen mention of building 
> partial Cocoa-Python apps,) Which would mean having MyDocument.h and 
> .m import say MyPython.py as a lib or object ).
> Dazed and Confused

I don't fully understand what your trying to do, but the most direct 
answer is 'no you cannot implement some methods of a class in python 
and others in Objective-C'.

Why do you want to do that in the first place? If you really want to 
include pure ObjC classes in your project you can use the 
Cocoa-Python-ObjC template.

Calling python methods from ObjC is easy enough if you use the right 
naming convention on the python side:
		def myMethodWithArg_andArg_(self, arg1, arg2):
			print arg1, arg2
			return 44


		id result, arg1, arg2;

		result = [obj myMethodWithArg:arg1 andArg:arg2];

But as I wrote before: try to convert the entire example to Python, 
that makes your live much easier. And read the tutorials.


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