Check name too

Author: johnslavik

Objects/exceptions.c

@@ -2708,6 +2708,7 @@ AttributeError_str(PyObject *op)
     PyAttributeErrorObject *self = PyAttributeErrorObject_CAST(op);
     if (
         self->obj
+        && self->name
         && (!PyTuple_GET_SIZE(self->args)
         || (PyTuple_GET_SIZE(self->args) == 1
             && PyUnicode_Equal(PyTuple_GET_ITEM(self->args, 0), self->name))