Get char** global variable

Hi there,

I have a global variable with list of C strings:

char ** custom_variables;

I'ld like to access to this var, so I followed the documentation:

http://www.swig.org/Doc4.0/Python.html#Python_nn59

and added the typemap(in) above, and the out:

%typemap(out) char ** {
  int len,i;
  len = 0;
  if ($input) {
    while ($input[len]) len++;
  }
  printf("input: %p\n", $input);
  printf("len: %d\n", len);
  $1 = PyList_New(len);
  for (i = 0; i < len; i++) {
    PyList_SetItem($1,i,PyUnicode_FromString($input[i]));
  }
}

bit it doesn't work:

print(mytest.cvar.custom_variables)

gives:

<Swig Object of type 'char **' at 0x7f8b22850ba0>

and

mytest.cvar.custom_variables = ["Foo", "bar"]

Traceback (most recent call last):
  File "./py3test.py", line 31, in <module>
    mytest.cvar.custom_variables = ["Foo", "bar"]
TypeError: in variable 'custom_variables' of type 'char **'


If I change the body of function in generated wrapper with name:

SWIGINTERN PyObject *Swig_var_custom_secrule_variables_get(void) {
....
}

by the code above, it works as I expect.

Looks like SWIG ignores the typemaps above.


What did I forgot?


Thanks,


a.