Returning a tuple of multipe objects in Python C API

Posted by celil on Stack Overflow See other posts from Stack Overflow or by celil
Published on 2010-08-16T23:25:49Z Indexed on 2010/12/30 10:54 UTC
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I am writing a native function that will return multiple Python objects

PyObject *V = PyList_New(0);
PyObject *E = PyList_New(0);
PyObject *F = PyList_New(0);

return Py_BuildValue("ooo", V, E, F);

This compiles fine, however, when I call it from a Python program, I get an error:

SystemError: bad format char passed to Py_BuildValue

How can this be done correctly?

EDIT: The following works

PyObject *rslt = PyTuple_New(3);
PyTuple_SetItem(rslt, 0, V);
PyTuple_SetItem(rslt, 1, E);
PyTuple_SetItem(rslt, 2, F);
return rslt;

However, isn't there a shorter way to do this?

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