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SF bug #699934: Obscure error message 

mwh pointed out that the error message did not
make sense if obtained by rearranging the bases.
This commit is contained in:
Raymond Hettinger 2003-04-06 19:13:41 +00:00
parent ff41c48a77
commit f394df47fd
2 changed files with 4 additions and 7 deletions
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5
Lib/test/test_descr.py
View File

@ -1062,9 +1062,8 @@ class EditableScrollablePane(ScrollablePane,EditablePane): pass
(EditableScrollablePane, ScrollablePane, EditablePane, (EditableScrollablePane, ScrollablePane, EditablePane,
Pane, ScrollingMixin, EditingMixin, object)) Pane, ScrollingMixin, EditingMixin, object))
mro_err_msg = """Cannot create class.The superclasses have conflicting mro_err_msg = """Cannot create a consistent method resolution
inheritance trees which leave the method resolution order (MRO) order (MRO) for bases """
undefined for bases """
def mro_disagreement(): def mro_disagreement():
if verbose: print "Testing error messages for MRO disagreement..." if verbose: print "Testing error messages for MRO disagreement..."

6
Objects/typeobject.c
View File

@ -1082,10 +1082,8 @@ set_mro_error(PyObject *to_merge, int *remain)
} }
n = PyDict_Size(set); n = PyDict_Size(set);
off = PyOS_snprintf(buf, sizeof(buf), "Cannot create class.\ off = PyOS_snprintf(buf, sizeof(buf), "Cannot create a \
The superclasses have conflicting\n\ consistent method resolution\norder (MRO) for bases");
inheritance trees which leave the method resolution order (MRO)\n\
undefined for bases");
i = 0; i = 0;
while (PyDict_Next(set, &i, &k, &v) && off < sizeof(buf)) { while (PyDict_Next(set, &i, &k, &v) && off < sizeof(buf)) {
PyObject *name = class_name(k); PyObject *name = class_name(k);