Bugs item #1506776, was opened at 2006-06-15 16:24 Message generated for change (Settings changed) made by gbrandl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1506776&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Interpreter Core Group: Python 2.4 >Status: Closed >Resolution: Wont Fix Priority: 5 Submitted By: Alexander Belopolsky (belopolsky) Assigned to: Nobody/Anonymous (nobody) Summary: Misleading error message from PyObject_GenericSetAttr Initial Comment: When an extension type Foo defines tp_getattr, but leaves tp_setattr NULL, an attempt to set an attribute bar results in an AttributeError with the message "'Foo' object has no attribute 'bar'". This message is misleading because the object may have the attribute 'bar' as implemented in tp_getattr. It would be better to change the message to "'Foo' object has only read-only attributes (assign to .bar)" as in the case tp_setattro == tp_setattr == NULL in PyObject_SetAttr . I've also noticed that the exceptions raised from PyObject_SetAttr are TypeErrors. Shouldn't PyObject_GenericSetAttr raise a TypeError if tp_setattr is null but tp_getattr is not? This would be consistent with the errors from read-only descriptors. ---------------------------------------------------------------------- >Comment By: Georg Brandl (gbrandl) Date: 2006-06-18 22:19 Message: Logged In: YES user_id=849994 Unfortunately the message "object has only readonly attrs" isn't quite right either, since there may be other attributes that can be set and deleted. I tried to come up with a better message but couldn't find one. The exception type cannot be changed for sure, because of backwards compatibility. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1506776&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
