[Swig-user] How to wrap char** to a Python list of strings?

[Pengkui L. <pen...@gm...>]

Suppose I have a C function strsplit() that returns char**. How should I
write the interface file such that I can get a list of strings in Python?

I realize that this page contains doc on converting python list to char**,
but I would like to know the other way around..
http://www.swig.org/Doc1.3/Python.html#Python_nn59

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

/* Split an input string 'instr', using a set of given delimiters, to an
array
   of strings of at most 'maxparts' parts. */
char **strsplit (const char *instr, const char *delimiters, size_t maxparts)
{
    char **tokens = (char **) calloc (maxparts, sizeof(char *));
    char *_instr = strdup (instr);
    size_t tokenmaxsize = strlen (_instr) + 1;
    char *pstr = strtok (_instr, delimiters);
    int i;
    for (i=0; pstr != NULL; i++) {
        tokens[i] = (char *) malloc (tokenmaxsize * sizeof(char));
        strcpy (tokens[i], pstr);
        pstr = strtok (NULL, delimiters);
    }
    free (_instr);
    return tokens;
}

(I know I could use str split() in Python for this particular example.)

Thanks,
Pengkui