updated for version 7.3.907

Problem:    Python uses IndexError when a dict key is not found.
Solution:   Use KeyError instead. (ZyX)

src/if_py_both.h

@@ -861,7 +861,7 @@ DictionaryItem(PyObject *self, PyObject *keyObject)
 
     if (di == NULL)
     {
-	PyErr_SetString(PyExc_IndexError, _("no such key in dictionary"));
+	PyErr_SetString(PyExc_KeyError, _("no such key in dictionary"));
 	return NULL;
     }