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modul = Extension("Gerät.Block.Funktion", sources = ["C/Funktion.c"],
                  include_dirs = ... ,   
                  library_dirs = ...,
                  libraries = [ ..., ... ]) 

setup( 
     name = "...", 
     version = "1.0", 
     description = "Module for  ...", 
     ext_modules = [modul] 
     )

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import Gerät.Block1
from Gerät.Block2 import (Funktion1,
                         Funktion2,
                         Funktion3)
import Gerät.Block3.Funktion1

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geraet/
    __init__.py
    block1.py
    _block1.so
    block2.py
    _block2.so
    …

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mypackage/
    __init__.py
    spam.py
    …

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mypackage/
    __init__.py
    spam/
        __init__.py <- Hier die gleiche API wie beim alten spam.py anbieten!
        part1.py
        part2.py
        util.py

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#include <Python.h>
#include <string.h>
#include <stdio.h>

PyObject * Routine(double Handle);

#include "cExtenFun1.c"
#include "cExtenFun2.c"

static PyObject *cExtenFun1(PyObject *self, PyObject *args);
static PyObject *cExtenFun2(PyObject *self, PyObject *args);

static PyMethodDef pyExten_methods[] = {
	{"pyExtenFun1", cExtenFun1, METH_VARARGS, "Performs some Function"},
	{"pyExtenFun2", cExtenFun2, METH_VARARGS, "Performs some other Function"},
    {NULL, NULL, 0, NULL}
};

PyMODINIT_FUNC initExten(void){
    Py_InitModule("Exten", pyExten_methods);
};

PyObject * Routine(double C_Handle){
        PyObject *C_Module = NULL, *C_Class = NULL, *C_Instance = NULL;
        Py_Handle = Py_BuildValue("(l)", C_Handle);
	C_Module = PyImport_ImportModule("Py_Module");
	if(C_Module){
		C_Class = PyObject_GetAttrString(C_Module, "Py_Method");
		if (PyCallable_Check(C_Class)){
			C_Instance = PyObject_CallObject(C_Class, Py_Handle);
		}
		else
			printf("Error: Py_Method not found\n");
	}
	else
		printf("Error: Py_Module not found\n");

	return C_Instance;
	Py_XDECREF(C_Module);
}

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"""
It might be useful to tell distutils to use mingw. To achieve this,
create a file named distutils.cfg (if you already don't have it) in
\PythonXY\Lib\distutils and add to it the following lines:

[build]
compiler = mingw32
"""
#[url]http://docs.python.org/distutils/setupscript.html[/url] 

import sys
from distutils.core import setup, Extension

sys.argv.append('install')  

modul = Extension("Block", sources = ["C/Block.c"]) 
setup( 
     name = "PyExten", 
     version = "1.0", 
     description = "Test C-Extension", 
     ext_package='Gerät',
     ext_modules = [modul] 
     )

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C/
    Block.c
    cExtenFun1.h
    cExtenFun1.c
    cExtenFun2.h
    cExtenFun2.c
    common.h
    common.c