Hi Valentine, On 19 August 2015 at 09:53, Valentine Sinitsyn <valentine.sinit...@gmail.com> wrote: > why it wasn't possible to > implement proposed CI disposal scheme on top of tp_del?
I'm replying here as best as I understand the situation, which might be incomplete or wrong. From the point of view of someone writing a C extension module, both tp_del and tp_finalize are called with the same guarantee that the object is still valid at that point. The difference is only that the presence of tp_del prevents the object from being collected at all if it is part of a cycle. Maybe the same could have been done without duplicating the function pointer (tp_del + tp_finalize) with a Py_TPFLAGS_DEL_EVEN_IN_A_CYCLE. A bientôt, Armin. _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com