problem using C-bindings

[eq]

Am Thu, 19 Aug 2004 17:45:45 -0400 schrieb Jack Diederich:

> On Thu, Aug 19, 2004 at 10:32:15PM +0200, eq wrote:
>> Hi,
>> 
>> I'm trying to create a program(written in C) that does the following
>> things using embedded Python:
>> 1. Create a module(say, "MyModule")
>> 2. Create a class in that module(say, "MyClass")
>> 3. Create a function in that module(say, "MyFunction")
> [snip]
>> 	class_dict=PyDict_New();
>> 	class_name=PyString_FromString("MyClass");
>> 	class=PyClass_New(NULL,class_dict,class_name);
>> 	PyDict_SetItemString(module_dict,"MyClass",class);
> [snip]
> 
> Take a look at Modules/xxsubtype.c in the source distribution.
> It is an example of how to subtype a builtin.  xxmodule.c shows
> how to make a class from scratch.  Both are out of date but a good
> sarting spot.
> 
Hm, perhaps I over-complicated my problem:
I don't need a full python-class in pure C. I just need to create a
(python!) function(a dynamic one, not a static C function) and attach it
to an already existing python-class just by using C-calls.
I try to do this by compiling the function's code with:

pyfunc_code=Py_CompileString(func_code,"",Py_file_input);

where func_code could be something like "print 'hello'" and then I try to
make a function out of this by calling:

pyfunc=PyFunction_New(pyfunc_code,dict);

where dict is the global namespace for the function.
What I now want is to attach this function to the already created class
"MyClass".

> You could also give Pyrex a try, it makes it easier to write just
> a hot function or two of a class in C.  I like it to prototype C versions
> of hotspot functions (but then do the final version 'by hand').
> 
> -Jack