Hello, http://bugs.python.org/issue3247 complains that with python 3.0, dir() of a SRE_Match object returns an empty list.
This type has the particularity to not define a tp_methods; instead, its tp_getattr slot calls Py_FindMethod(match_methods, self, name) where "match_methods" is a PyMethodDef[] array that looks very very similar to a typical tp_methods slot. Py_FindMethod has a trick: when the requested name is "__methods__", it returns the names of the PyMethodDef items. __methods__ has disappeared with python 3.0, and indeed if I enable the "-3" warning flag on python2.6, dir() on a SRE_Match object raises two (!) warnings: __main__:1: DeprecationWarning: __methods__ not supported in 3.x __main__:1: DeprecationWarning: __members__ and __methods__ not supported in 3.x According to previous discussions: http://mail.python.org/pipermail/python-3000/2007-July/008787.html Py_FindMethod is not needed any more in modern modules, and should go away. Note that PyMember_Get has already disappeared, because the few modules using them were deleted... Is it still time for such a change after beta1? There are ~30 occurrences of Py_FindMethod in the code base. Most of the time, it is enough to remove the call, and set the tp_methods members. Another thing: why was traceback.__dir__ added? the current 3.0 produces: >>> dir(b.__traceback__) ['tb_frame', 'tb_lasti', 'tb_lineno', 'tb_next'] When I remove the __dir__ method, I get the special methods as well: >>> dir(b.__traceback__) ['__class__', '__delattr__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'tb_frame', 'tb_lasti', 'tb_lineno', 'tb_next'] It's more verbose, but most types have the same list of special members. I suggest to remove it, to enhance consistency (loosing some 2.6 compatibility, but it's python3.0 after all) -- Amaury Forgeot d'Arc _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
