New submission from Serhiy Storchaka: Pickling of objects of classes whose __new__ mandates the use of keyword-only arguments is supported with protocol 4 (using a new opcode NEWOBJ_EX). But it is possible to implement this feature with protocol 2+ (less efficiently than with NEWOBJ_EX). __new_ex__ is pickled as partial(cls.__new__, cls, *args, **kwargs). Pickled data is compatible with older Python releases up to 2.7 (issue5228).
Proposed patch adds support of __new__ with keyword arguments with protocols 2 and 3. ---------- components: Extension Modules, Interpreter Core, Library (Lib) files: pickle_new_ex_protocol_2.patch keywords: patch messages: 242890 nosy: alexandre.vassalotti, pitrou, serhiy.storchaka priority: normal severity: normal stage: patch review status: open title: Support pickling objects with __new__ with keyword arguments with protocol 2+ type: enhancement versions: Python 3.5 Added file: http://bugs.python.org/file39341/pickle_new_ex_protocol_2.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24164> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
