holoviz
"No such comm" again
ALL software version info
- holoviews 1.13.2
- notebook 6.0.3
- Python 3.7
Description of expected behavior and the observed behavior
Not getting errors and warnings for holoviews use in a notebook.
Complete, minimal, self-contained example code that reproduces the issue
This code cell is all what one currently needs to trigger errors and warnings after a restart of the notebook:
import holoviews as hv
hv.notebook_extension('bokeh')
So, procedure to trigger the error and warning in the console is
- execute code cell
- restart notebook
- executing code cell again
Stack traceback and/or browser JavaScript console output
[I 13:48:32.046 NotebookApp] Replaying 7 buffered messages [IPKernelApp] ERROR | No such comm target registered: hv-extension-comm [IPKernelApp] WARNING | No such comm: hv-extension-comm
This has been my ongoing nemesis, the warnings are definitely annoying but don't actually indicate that anything is wrong. I'll move the issue to pyviz_comms and maybe I'll finally figure it out.
it's intriguing though that different to the older stories, now there's also ERRORs being created.
@philippjfr Does the suggestion that they are now ERRORs as opposed to warnings concern you or do you still think these messages are safe to ignore?
No, it's really just the log level that was changed it still doesn't indicate any real error condition.
In that case do you think this will ever be fixed (in which case this issue can stay open) or maybe this is an unfortunately case of wontfix?
aand they are back... :( (they were gone for a while...)
\[IPKernelApp] ERROR | No such comm target registered: jupyter.widget.control
[IPKernelApp] WARNING | No such comm: ad3fae9f-d861-4a71-8bf7-e466009b0650
|[IPKernelApp] ERROR | No such comm target registered: jupyter.widget.control
[IPKernelApp] WARNING | No such comm: 151ed4eb-7939-4789-aec9-552998478b1b
[IPKernelApp] ERROR | No such comm target registered: jupyter.widget.control
[IPKernelApp] WARNING | No such comm: a1f8aa4a-1358-40b4-9b34-cab7ddc665d9
[IPKernelApp] ERROR | No such comm target registered: jupyter.widget.control
[IPKernelApp] WARNING | No such comm: 6f7a646d-01ab-4f85-99a6-83d292c2429a
[IPKernelApp] ERROR | No such comm target registered: jupyter.widget.control
[IPKernelApp] WARNING | No such comm: 42dc6bd9-8e6d-48f5-8b96-498e3b88e3d5
[IPKernelApp] ERROR | No such comm target registered: jupyter.widget.control
[IPKernelApp] WARNING | No such comm: fb59eda0-c563-4360-9585-3afa6f42e1aa
My $500 USD bounty for anyone who can make those messages go away is still open...
