KeyError raised when using combination of checkbox, interactive dataframe, linked_selections, and hover_cols. #6106
Description
Same error as #5412, but this example doesn't use streamz.
ALL software version info
(this library, plus any other relevant software, e.g. bokeh, python, notebook, OS, browser, etc)
Used a fresh holoviews installation using the instructions from installation page.
Relevant conda environment from mamba list
# Name Version Build Channel
bokeh 3.3.4 py311h92b7b1e_0
colorcet 3.0.1 py311h06a4308_0
datashader 0.16.0 py311h06a4308_0
holoviews 1.18.2 py311h06a4308_0
hvplot 0.9.2 py311h06a4308_0
pandas 2.1.4 py311ha02d727_0
panel 1.3.8 py311h06a4308_0
param 2.0.2 py311h06a4308_0
python 3.11.7 h955ad1f_0
OS info:
Operating System: Red Hat Enterprise Linux 8.5 (Ootpa)
CPE OS Name: cpe:/o:redhat:enterprise_linux:8::baseos
Kernel: Linux 4.18.0-348.20.1.el8_5.x86_64
Architecture: x86-64
Description of expected behavior and the observed behavior
This error shows up when all conditions below are met:
- An interactive dataframe filtered on
pn.widgets.CheckBoxGroup. - Multiple plots using the dataframes
hvplotplotting methods with thehover_colsargument. - Multiple plots passed to
hv.linked_selection.interaction(). - Checking a checkbox when all checkboxes are unchecked.
The expected behavior would be for the markers associated with the newly checked checkbox to appear in the plots.
The observed behavior is a KeyError from python and blank plots in the browser.
Note that if hover_cols isn't specified, or only one plot is passed to hv.linked_selection.interaction() this error doesn't occur. There's something about specifying hover_cols and having more than one plot in an interactive layout.
Complete, minimal, self-contained example code that reproduces the issue
I've tested this in a notebook and using the panel serve test.py command on the below code.
# test.py
import holoviews as hv
import pandas as pd
import panel as pn
import hvplot.pandas
df = pd.DataFrame({"category": ["A", "B", "B"], "x": [1, 2, 3], "y": [1, 2, 3]})
dfi = df.interactive()
options = sorted(df["category"].unique())
checkboxes = pn.widgets.CheckBoxGroup(
name="Checkboxes", value=options, options=options, inline=True
)
filtered = dfi[dfi["category"].isin(checkboxes)]
ls = hv.link_selections.instance()
pn.Column(ls(filtered.hvplot.scatter(x="x", y="y", hover_cols=["category", "x", "y"]) + filtered.hvplot.scatter(x="x", y="y", hover_cols=["category", "x", "y"]))).servable()
Stack traceback and/or browser JavaScript console output
Stack traceback from panel server:
2024-02-07 17:01:08,766 ERROR: panel.reactive - Callback failed for object named "Checkboxes" changing property {'value': ['A']}
Traceback (most recent call last):
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/panel/reactive.py", line 385, in _process_events
self.param.update(**self_events)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2278, in update
restore = self_._update(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2318, in _update
self_._batch_call_watchers()
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2509, in _batch_call_watchers
self_._execute_watcher(watcher, events)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2471, in _execute_watcher
watcher.fn(*args, **kwargs)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/streams.py", line 777, in _watcher
self.trigger([self])
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/streams.py", line 189, in trigger
subscriber(**dict(union))
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 243, in refresh
raise e
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 239, in refresh
self._trigger_refresh(stream_key)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 257, in _trigger_refresh
self.update(key)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 956, in update
item = self.__getitem__(key)
^^^^^^^^^^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 443, in __getitem__
self.update_frame(frame)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/bokeh/element.py", line 2014, in update_frame
ranges = self.compute_ranges(self.hmap, key, ranges)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 614, in compute_ranges
self._compute_group_range(group, elements, ranges, framewise,
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 862, in _compute_group_range
filtered = [r for i, r in zip(ids, values[g]) if i not in prev_ids]
~~~~~~^^^
KeyError: 'factors'
2024-02-07 17:01:08,769 Exception in callback functools.partial(<bound method IOLoop._discard_future_result of <tornado.platform.asyncio.AsyncIOMainLoop object at 0x7f3bf384ce50>>, <Task finished name='Task-8695' coro=<ServerSession.with_document_locked() done, defined at /home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/bokeh/server/session.py:77> exception=KeyError('factors')>)
Traceback (most recent call last):
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/tornado/ioloop.py", line 738, in _run_callback
ret = callback()
^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/tornado/ioloop.py", line 762, in _discard_future_result
future.result()
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/bokeh/server/session.py", line 98, in _needs_document_lock_wrapper
result = await result
^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/panel/reactive.py", line 431, in _change_coroutine
state._handle_exception(e)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/panel/io/state.py", line 442, in _handle_exception
raise exception
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/panel/reactive.py", line 429, in _change_coroutine
self._change_event(doc)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/panel/reactive.py", line 447, in _change_event
self._process_events(events)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/panel/reactive.py", line 385, in _process_events
self.param.update(**self_events)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2278, in update
restore = self_._update(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2318, in _update
self_._batch_call_watchers()
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2509, in _batch_call_watchers
self_._execute_watcher(watcher, events)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/param/parameterized.py", line 2471, in _execute_watcher
watcher.fn(*args, **kwargs)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/streams.py", line 777, in _watcher
self.trigger([self])
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/streams.py", line 189, in trigger
subscriber(**dict(union))
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 243, in refresh
raise e
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 239, in refresh
self._trigger_refresh(stream_key)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 257, in _trigger_refresh
self.update(key)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 956, in update
item = self.__getitem__(key)
^^^^^^^^^^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 443, in __getitem__
self.update_frame(frame)
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/bokeh/element.py", line 2014, in update_frame
ranges = self.compute_ranges(self.hmap, key, ranges)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 614, in compute_ranges
self._compute_group_range(group, elements, ranges, framewise,
File "/home/user/.anaconda3/envs/holoviz_error/lib/python3.11/site-packages/holoviews/plotting/plot.py", line 862, in _compute_group_range
filtered = [r for i, r in zip(ids, values[g]) if i not in prev_ids]
~~~~~~^^^
KeyError: 'factors'
compute_ranges looks to be the culprit.
Screenshots or screencasts of the bug in action
Image of the blank plots. There should be a scatter marker at (1, 1)
- I may be interested in making a pull request to address this