SystemError: new style getargs format but argument is not a tuple

[Alex Farber]

Dear colleagues,

I am trying to find out, why Py_CompileString() returns NULL -
1) because the string is incomplete, like in "for i in [1,2]:"
2) or because of some other syntax error, like "x=1.1.1"

So here is my code:

/* gcc -I/usr/include/python -lpython1.5 -o eof eof.c */

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

int main(int ac,char* av[])
{
  char *string;
  PyObject *globals, *source, *error, *dummy;

  Py_Initialize();
  globals = PyDict_New();
  PyDict_SetItemString(globals, "__builtins__", PyEval_GetBuiltins());

  source = Py_CompileString("for i in i [1,2]:", "<stdin>", Py_file_input);

  if (source == NULL) {
    if (PyErr_ExceptionMatches(PyExc_SyntaxError)) {
      if(!PyArg_ParseTuple(PyExc_SyntaxError, "(sO)", &string, &dummy)) {

        if (!strcmp(string,"unexpected EOF while parsing"))
          printf("More input is needed: %s\n", string);
        else
          printf("Some syntax error: %s\n", string);

      }
    }
    PyErr_Print();
  }

  Py_XDECREF(globals);
  Py_XDECREF(source);
  Py_Finalize();
  exit(0);
}

However I get: "argument is not a tuple".
And I am just trying to get the string value, 
which is inserted in Python/pythonrun.c:

static void
err_input(err)
        perrdetail *err;
{
...
        case E_EOF:
                msg = "unexpected EOF while parsing";
                break;
...
        w = Py_BuildValue("(sO)", msg, v);
        Py_XDECREF(v);
        PyErr_SetObject(PyExc_SyntaxError, w);
        Py_XDECREF(w);
}

Does anyone have an advice for me?
Maybe I can check E_EOF somehow?

Thank you!
Alex