Kill off _rpmb.error exception type

- import of _rpmb messes up rpm.error to point to _rpmb.error which we
  do not want
- use ValueError for unparsable spec for now, need to figure something
  saner there still

python/rpmbmodule.c

@@ -4,9 +4,6 @@
 
 #include "debug.h"
 
-/* hmm.. figure something better */
-PyObject * pyrpmbError;
-
 static char rpmb__doc__[] =
 "";
 
@@ -24,10 +21,6 @@ void init_rpmb(void)
 
     d = PyModule_GetDict(m);
 
-    pyrpmbError = PyErr_NewException("_rpmb.error", NULL, NULL);
-    if (pyrpmbError != NULL)
-	PyDict_SetItemString(d, "error", pyrpmbError);
-
     Py_INCREF(&spec_Type);
     PyModule_AddObject(m, "spec", (PyObject *) &spec_Type);
 

python/spec-py.c

@@ -168,7 +168,7 @@ static PyObject *spec_new(PyTypeObject *subtype, PyObject *args, PyObject *kwds)
              	  cookie, anyarch, force) == 0) {
 	spec = rpmtsSpec(ts);
     } else {
-	 PyErr_SetString(pyrpmbError, "can't parse specfile\n");
+	 PyErr_SetString(PyExc_ValueError, "can't parse specfile\n");
     }
     rpmtsFree(ts);
 

python/spec-py.h

@@ -7,8 +7,6 @@ typedef struct specObject_s specObject;
 
 extern PyTypeObject spec_Type;
 
-extern PyObject *pyrpmbError;
-
 #define specObject_Check(v)	((v)->ob_type == &spec_Type)
 
 rpmSpec specFromSpec(specObject * spec);