The rpmmodule.c has (since several versions of rpm) a wrongly defined method
table. E.g.

	{"verifyFile",	(PyCFunction) hdrVerifyFile,	1 },

does not work, becaus "1" means METH_VARARGS and in thos case the argument is
a python tuple. The associated function expects an interger, however:

  static PyObject * hdrVerifyFile(hdrObject * s, PyObject * args) {

    if (!PyInt_Check(args)) {
	PyErr_SetString(PyExc_TypeError, "integer expected");
	return NULL;
    }

This applies to several functions in rpmmodule.c. making these functions
effectivly unusable.