"ValueError: Empty module name" on basic import

[alain MONTMORY]

Hello everybody,

I am a newbie to python so I hope I am at the right place to expose my 
problem..... :-[

I am working on linux mandrake 10.1 with python :
python -V
Python 2.3.4
I am trying o run the example which stay in the documentation in paragraph
http://www.python.org/doc/2.4.2/ext/pure-embedding.html 5.3 Pure Embedding
I download the code example from
http://www.python.org/doc/2.4.2/ext/run-func.txt
I call the file "TestOfficiel.c" and I compile it with :
gcc -g -I/usr/include/python2.3/ TestOfficiel.c -o TestOfficiel 
-lpython2.3 -ldl
all is OK (or seems to be...).
as stated in the documentation  I creat a file "TestPythonFoo.py" which 
contain
"
def multiply(a,b):
   print "Will compute", a, "times", b
   c = 0
   for i in range(0, a):
       c = c + b
   return c
"
I launch
./TestOfficiel ./TestPythonFoo.py multiply 3 2
and as a result :
ValueError: Empty module name
Failed to load "./TestPythonFoo.py"
if I try an absolute path to the python file :
./TestOfficiel `pwd`/TestPythonFoo.py multiply 3 2
I obtain :
ImportError: No module named 
/space/ESOPPE_PROJET/Outils/SwigPython/swigCallPython/TestPythonFoo.py
Failed to load 
"/space/ESOPPE_PROJET/Outils/SwigPython/swigCallPython/TestPythonFoo.py"
Of course the file exist :
[EMAIL PROTECTED] swigCallPython]$ ll 
/space/ESOPPE_PROJET/Outils/SwigPython/swigCallPython/TestPythonFoo.py
-rwxrwx--x  1 montmory esoppe 126 sep 29 14:04 
/space/ESOPPE_PROJET/Outils/SwigPython/swigCallPython/TestPythonFoo.py*

I found lot of post about "ValueError: Empty module name" but no clear 
solution (clear for me...).
What's wrong ?
my python version?
Additionnal informations :
gcc version 3.4.1 (Mandrakelinux 10.1 3.4.1-4mdk)

Thanks for your help,

best regards,

Alain



#include <Python.h>

int
main(int argc, char *argv[])
{
    PyObject *pName, *pModule, *pDict, *pFunc;
    PyObject *pArgs, *pValue;
    int i;

    if (argc < 3) {
        fprintf(stderr,"Usage: call pythonfile funcname [args]\n");
        return 1;
    }

    Py_Initialize();
    pName = PyString_FromString(argv[1]);
    /* Error checking of pName left out */

    pModule = PyImport_Import(pName);
    Py_DECREF(pName);

    if (pModule != NULL) {
        pDict = PyModule_GetDict(pModule);
        /* pDict is a borrowed reference */

        pFunc = PyDict_GetItemString(pDict, argv[2]);
        /* pFun: Borrowed reference */

        if (pFunc && PyCallable_Check(pFunc)) {
            pArgs = PyTuple_New(argc - 3);
            for (i = 0; i < argc - 3; ++i) {
                pValue = PyInt_FromLong(atoi(argv[i + 3]));
                if (!pValue) {
                    Py_DECREF(pArgs);
                    Py_DECREF(pModule);
                    fprintf(stderr, "Cannot convert argument\n");
                    return 1;
                }
                /* pValue reference stolen here: */
                PyTuple_SetItem(pArgs, i, pValue);
            }
            pValue = PyObject_CallObject(pFunc, pArgs);
            Py_DECREF(pArgs);
            if (pValue != NULL) {
                printf("Result of call: %ld\n", PyInt_AsLong(pValue));
                Py_DECREF(pValue);
            }
            else {
                Py_DECREF(pModule);
                PyErr_Print();
                fprintf(stderr,"Call failed\n");
                return 1;
            }
            /* pDict and pFunc are borrowed and must not be Py_DECREF-ed */
        }
        else {
            if (PyErr_Occurred())
                PyErr_Print();
            fprintf(stderr, "Cannot find function \"%s\"\n", argv[2]);
        }
        Py_DECREF(pModule);
    }
    else {
        PyErr_Print();
        fprintf(stderr, "Failed to load \"%s\"\n", argv[1]);
        return 1;
    }
    Py_Finalize();
    return 0;
}
def multiply(a,b):
    print "Will compute", a, "times", b
    c = 0
    for i in range(0, a):
        c = c + b
    return c
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