Broken since python3.8 upgrade

[lgarcin]

The pweave executable seems to be broken since I upgraded to python3.8 (everything was fine with python 3.7).

When I try an example of the docs

pweave -f md2html FIR_designp.pmd

I get the following error message

Traceback (most recent call last):
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 528, in get
    value = obj._trait_values[self.name]
KeyError: 'iopub_socket'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 528, in get
    value = obj._trait_values[self.name]
KeyError: 'iopub_thread'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\laure\appdata\local\programs\python\python38\lib\runpy.py", line 192, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\laure\appdata\local\programs\python\python38\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\laure\AppData\Local\Programs\Python\Python38\Scripts\pweave.exe\__main__.py", line 7, in <module>
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\pweave\scripts.py", line 53, in weave
    pweave.weave(infile, **opts_dict)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\pweave\__init__.py", line 59, in weave
    doc.weave()
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\pweave\pweb.py", line 192, in weave
    self.run()
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\pweave\pweb.py", line 122, in run
    proc = Processor(copy.deepcopy(self.parsed),
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\pweave\processors\jupyter.py", line 169, in __init__
    super(IPythonProcessor, self).__init__(*args, embed_kernel=embed)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\pweave\processors\jupyter.py", line 34, in __init__
    km.start_kernel(cwd=path, stderr=open(os.devnull, 'w'))
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\inprocess\manager.py", line 46, in start_kernel
    self.kernel = InProcessKernel(parent=self, session=self.session)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\inprocess\ipkernel.py", line 72, in __init__
    super(InProcessKernel, self).__init__(**traits)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\ipkernel.py", line 71, in __init__
    self.shell.displayhook.pub_socket = self.iopub_socket
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 556, in __get__
    return self.get(obj, cls)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 535, in get
    value = self._validate(obj, dynamic_default())
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\inprocess\ipkernel.py", line 67, in _default_iopub_socket
    return self.iopub_thread.background_socket
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 556, in __get__
    return self.get(obj, cls)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 535, in get
    value = self._validate(obj, dynamic_default())
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\inprocess\ipkernel.py", line 59, in _default_iopub_thread
    thread = IOPubThread(self._underlying_iopub_socket)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\iostream.py", line 71, in __init__
    self._setup_event_pipe()
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\ipykernel\iostream.py", line 90, in _setup_event_pipe
    self._event_puller = ZMQStream(pipe_in, self.io_loop)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\zmq\eventloop\zmqstream.py", line 127, in __init__
    self._init_io_state()
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\zmq\eventloop\zmqstream.py", line 546, in _init_io_state
    self.io_loop.add_handler(self.socket, self._handle_events, self.io_loop.READ)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\site-packages\tornado\platform\asyncio.py", line 99, in add_handler
    self.asyncio_loop.add_reader(fd, self._handle_events, fd, IOLoop.READ)
  File "c:\users\laure\appdata\local\programs\python\python38\lib\asyncio\events.py", line 501, in add_reader
    raise NotImplementedError
NotImplementedError

[lgarcin]

Answering to myself.

This seems to be related to this issue

[adbull]

This was fixed for me by upgrading to python3.9.

[sergiomora03]

@lgarcin you're right. It solved by update notebook package in python:

pip install notebook --upgrade