PyImport_ImportModule("cStringIO") failure with undefinedsymbol

[Borse, Ganesh]

Hi,
Can you please guide me for the following problem?
The call to "PyImport_ImportModule("cStringIO");" is failing with an error of "undefined symbol: PyObject_SelfIter".

Before importing this module, I am importing only the sys module.

Py_SetProgramName("/usr/bin/python");
Py_Initialize();
char* argv[] = { "python","-v",""};
PySys_SetArgv(2,argv);
PyRun_SimpleString("import sys");

PyObject *modStringIO = NULL;
// Import cStringIO module
modStringIO = PyImport_ImportModule("cStringIO");

Should I be importing any other additional module(s) to make this import work?

Please help.

I am trying to use the function GetPythonErrorMessage provided in this post:
http://groups.google.com/group/comp...902b14?lnk=gst&q=PyErr_Print#f0bd5f5b15902b14

Thanks in advance for your help.
Regards.

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[grbgooglefan]

Hi,
Can you please guide me for the following problem?
The call to "PyImport_ImportModule("cStringIO");" is failing with an error of "undefined symbolyObject_SelfIter".

Before importing this module, I am importing only the sys module.

   Py_SetProgramName("/usr/bin/python");
   Py_Initialize();
   char* argv[] = { "python","-v",""};
   PySys_SetArgv(2,argv);
   PyRun_SimpleString("import sys");

   PyObject *modStringIO = NULL;
   // Import cStringIO module
   modStringIO = PyImport_ImportModule("cStringIO");

Should I be importing any other additional module(s) to make this import work?

Please help.

I am trying to use the function GetPythonErrorMessage provided in this post:http://groups.google.com/group/comp.lang.python/browse_thread/thread/...

Thanks in advance for your help.
Regards.

==========================================

Function "PyObject_SelfIter" is part of libPython.a. But when library
which is linked with libPython.a tries to import cStringIO (which is
nothing but dlopen("lib-dynload/cStringIO.so"), ld.so does not find
this symbol.
So, as a workaround, we can get the cStringIO.so also linked with the
library which has linked libPython.a.
By this we ensure that PyObject_SelfIter is already resolved in the
library.
Then at the time of importing cStringIO at runtime, this symbol is
already referenced & won't cause problems.