Interfacing a C++ class, example

[Torsten Mohr]

Hi,

i wrote a short example using "swig" to interface a small C++
class. It doesn't yet work, as there is not yet an init function:

tmohr@schleim:~/p/python/swig> python
Python 2.3+ (#1, Sep 23 2003, 23:07:16)
[GCC 3.3.1 (SuSE Linux)] on linux2
Type "help", "copyright" , "credits" or "license" for more information.[color=blue][color=green][color=darkred]
>>> import pcpl[/color][/color][/color]
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ImportError: dynamic module does not define init function (initpcpl)[color=blue][color=green][color=darkred]
>>>[/color][/color][/color]


Can anybody tell me what i need to add to make the C++ class
available in Python as a data type?


Thanks for any hints,
Torsten.


Here are the sources and the Makefile:
MOD = pcpl
PYT = $(MOD).cc


all: $(PYT) pcpl.so


cpl.o: cpl.cc cpl.h
g++ -o $@ -c $<


$(PYT):
swig -python -c++ -o $@ -module $(MOD) cpl.h


pcpl.o: wpcpl.cc pcpl.cc cpl.h
g++ -o $@ -c $< -I/usr/include/python2.3


pcpl.so: pcpl.o cpl.o
gcc -Bdynamic -shared -o $@ $^



clean:
-rm -f pcpl.so
-rm -f pcpl.o
-rm -f cpl.o
-rm -f pcpl.cc
-rm -f pcpl.h
-rm -f pcpl.py




### cpl.h
#ifndef CPL_H
#define CPL_H 1

class Abc {
public:
Abc();
~Abc();

int somefunc(int a);
};

#endif





### cpl.cc
#include <stdlib.h>
#include <stdio.h>
#include <iostream>

#include "cpl.h"

using namespace std;


Abc::Abc() {
cout << "Abc()" << endl;
}

Abc::~Abc() {
cout << "~Abc()" << endl;
}

int Abc::somefunc(i nt a) {
cout << "a is " << a << endl;

return 42;
}




### wpcpl.cc
#include "cpl.h"
#include "pcpl.cc"