Jupyter console is broken (run_sync expects coroutines) #277
Description
Jupyter console appears to be simply broken since any use of it triggers an assertion:
❯ jupyter --version
Selected Jupyter core packages...
IPython : 8.9.0
ipykernel : 6.21.1
ipywidgets : 8.0.4
jupyter_client : 8.0.2
jupyter_core : 5.2.0
jupyter_server : 2.2.1
jupyterlab : not installed
nbclient : 0.7.2
nbconvert : 7.2.9
nbformat : 5.7.3
notebook : 6.5.2
qtconsole : 5.4.0
traitlets : 5.9.0
❯ jupyter console
0.00s - Debugger warning: It seems that frozen modules are being used, which may
0.00s - make the debugger miss breakpoints. Please pass -Xfrozen_modules=off
0.00s - to python to disable frozen modules.
0.00s - Note: Debugging will proceed. Set PYDEVD_DISABLE_FILE_VALIDATION=1 to disable this validation.
0.00s - Debugger warning: It seems that frozen modules are being used, which may
0.00s - make the debugger miss breakpoints. Please pass -Xfrozen_modules=off
0.00s - to python to disable frozen modules.
0.00s - Note: Debugging will proceed. Set PYDEVD_DISABLE_FILE_VALIDATION=1 to disable this validation.
Jupyter console 6.4.4
Python 3.11.1 (main, Jan 9 2023, 17:26:13) [GCC 11.3.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.9.0 -- An enhanced Interactive Python. Type '?' for help.
then I type "x" and press enter, which produces:
Unhandled exception in event loop:
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/asyncio/events.py", line 80, in _run
self._context.run(self._callback, *self._args)
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/prompt_toolkit/input/vt100.py", line 173, in callback_wrapper
callback()
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 707, in read_from_input
self.key_processor.process_keys()
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 270, in process_keys
self._process_coroutine.send(key_press)
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 185, in _process
self._call_handler(matches[-1], key_sequence=buffer[:])
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 320, in _call_handler
handler.call(event)
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_bindings.py", line 124, in call
result = self.handler(event)
^^^^^^^^^^^^^^^^^^^
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/jupyter_console/ptshell.py", line 477, in _
self.handle_iopub()
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/jupyter_console/ptshell.py", line 854, in handle_iopub
while run_sync(self.client.iopub_channel.msg_ready)():
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/neil/.pyenv/versions/3.11.1/lib/python3.11/site-packages/jupyter_core/utils/__init__.py", line 147, in run_sync
raise AssertionError
Exception
Press ENTER to continue...
Apparently, self.client.iopub_channel.msg_ready is not a coroutine, but run_sync expects it to be.