[issue29517] "Can't pickle local object" when uses functools.partial with method and args...
DAVID ALEJANDRO Pineda added the comment: Hello Again. The problem can be replicated in the same structure when call the 'functools.partial' feature I wrote a simple example. It uses the asyncio and multiprocessing structure. https://github.com/dpineiden/async_multiprocessing With this dependences: https://gitlab.com/pineiden/tasktools https://gitlab.com/pineiden/networktools In python 3.5.1 works fine even if in the mprocess file uncomment the 'functools.partial'. But when i use a larger version, like 3.6, fails with the 'weakref' -- ___ Python tracker <http://bugs.python.org/issue29517> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue29517] "Can't pickle local object" when uses functools.partial with method and args...
DAVID ALEJANDRO Pineda added the comment: Now I try again with different ways to run a method with args, without args works fine to insert in the executor. I find there are big differences with file functools betwen versions 3.5.1 to 3.6.0. Here a more simple example for test the functools: https://github.com/dpineiden/async_multiprocessing -- ___ Python tracker <http://bugs.python.org/issue29517> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue29517] "Can't pickle local object" when uses functools.partial with method and args...
New submission from DAVID ALEJANDRO Pineda: Hello. I'm working in a real time data collector project. I'm using asyncio and multiprocessing (run_in_executor). In python 3.5 worked fine but in python 3.6 not, gave to me this error: "Traceback (most recent call last): File "/usr/local/lib/python3.6/multiprocessing/queues.py", line 241, in _feed obj = _ForkingPickler.dumps(obj) File "/usr/local/lib/python3.6/multiprocessing/reduction.py", line 51, in dumps cls(buf, protocol).dump(obj) AttributeError: Can't pickle local object 'WeakSet.__init__.._remove' " I tracked and the problem is when i run some method in run_in_executor with the functools.partial. Before this version the system works fine. The main file is local.py (to run with local administration using a socket) And the engine is in engine.py The project (in development): https://gitlab.com/pineiden/collector -- components: asyncio files: code_with_bug.png messages: 287459 nosy: DAVID ALEJANDRO Pineda, gvanrossum, yselivanov priority: normal severity: normal status: open title: "Can't pickle local object" when uses functools.partial with method and args... type: behavior versions: Python 3.6 Added file: http://bugs.python.org/file46614/code_with_bug.png ___ Python tracker <http://bugs.python.org/issue29517> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
