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jupyter / jupyter_console

Jupyter Terminal Console
http://jupyter-console.readthedocs.io/en/latest/
BSD 3-Clause "New" or "Revised" License
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jupyter console broken on latest conda-forge. Regression from jupyter_client-7.0.2 #251

Open slonik-az opened 3 years ago

slonik-az commented 3 years ago

At least on MacOS jupyter console 6.4.0 is broken on fresh install from conda-forge. Regression seems to be caused by jupyter_client 7.0.2. Downgrading jupyter_client from 7.0.2 to 6.1.12 seems to resolve the problem.

How to reproduce

  1. Fresh install from conda-forge $ conda create -c conda-forge -n exp python=3.9 jupyter
  2. Activate newly created environment $ conda activate exp
  3. Start jupyter console and then hit enter $ jupyter console <hit ENTER>

Output

Click to expand ``` Jupyter console 6.4.0 Python 3.9.7 | packaged by conda-forge | (default, Sep 14 2021, 01:18:03) Type 'copyright', 'credits' or 'license' for more information IPython 7.27.0 -- An enhanced Interactive Python. Type '?' for help. In [1]: /opt/mambaforge/envs/exp/lib/python3.9/site-packages/jupyter_console/ptshell.py:852: RuntimeWarning: coroutine 'ZMQSocketChannel.msg_ready' was never awaited while self.client.iopub_channel.msg_ready(): RuntimeWarning: Enable tracemalloc to get the object allocation traceback Unhandled exception in event loop: File "/opt/mambaforge/envs/exp/lib/python3.9/asyncio/events.py", line 80, in _run self._context.run(self._callback, *self._args) File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/prompt_toolkit/input/vt100.py", line 168, in callback_wrapper callback() File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/prompt_toolkit/application/application.py", line 691, in read_from_input self.key_processor.process_keys() File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/prompt_toolkit/key_binding/key_processor.py", line 274, in process_keys self._process_coroutine.send(key_press) File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/prompt_toolkit/key_binding/key_processor.py", line 186, in _process self._call_handler(matches[-1], key_sequence=buffer[:]) File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/prompt_toolkit/key_binding/key_processor.py", line 329, in _call_handler handler.call(event) File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/prompt_toolkit/key_binding/key_bindings.py", line 102, in call result = self.handler(event) File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/jupyter_console/ptshell.py", line 475, in _ self.handle_iopub() File "/opt/mambaforge/envs/exp/lib/python3.9/site-packages/jupyter_console/ptshell.py", line 854, in handle_iopub msg_type = sub_msg['header']['msg_type'] Exception 'coroutine' object is not subscriptable Press ENTER to continue... ```

Workaround

Downgrading to jupyrer_client 6.1.12 seems to solve the problem $ conda install -c conda-forge jupyter_client=6.1.12 $ jupyter console Seems to be working OK now.

slonik-az commented 3 years ago

Thanks to @davidbrochart for pointing to PR https://github.com/jupyter/jupyter_console/pull/244 that seems to address the root cause of the issue migrating from jupyter_client 6.x to 7.x.

NeilGirdhar commented 2 years ago

So this is fixed, right?

davidbrochart commented 2 years ago

Yes but not released yet.