KeyError 'data' on table edit

[nmillerPCMC]

Just trying to get the Tabulator example posted on the main webpage to work. Editing the cells throws a KeyError exception.
https://panel.holoviz.org/reference/widgets/Tabulator.html

ALL software version info

panel v1.2.2
ipywidgets v8.1.1
bokeh v3.2.2
jupyter_bokeh v3..0.7
Windows 10
python 3.11
working within VScode v1.82.2 with Jupyter Extension v2023.8.1002501831
(this library, plus any other relevant software, e.g. bokeh, python, notebook, OS, browser, etc)

Description of expected behavior and the observed behavior

should be able to edit without fatal error

Complete, minimal, self-contained example code that reproduces the issue

#Holoviz panel
import datetime as dt
import numpy as np
import pandas as pd
import panel as pn

np.random.seed(7)
pn.extension('tabulator')

df_widget = pn.widgets.Tabulator(df)
df = pd.DataFrame({
    'int': [1, 2, 3],
    'float': [3.14, 6.28, 9.42],
    'str': ['A', 'B', 'C'],
    'bool': [True, False, True],
    'date': [dt.date(2019, 1, 1), dt.date(2020, 1, 1), dt.date(2020, 1, 10)],
    'datetime': [dt.datetime(2019, 1, 1, 10), dt.datetime(2020, 1, 1, 12), dt.datetime(2020, 1, 10, 13)]
}, index=[1, 2, 3])

df_widget = pn.widgets.Tabulator(df, buttons={'Print': "<i class='fa fa-print'></i>"})
display(df_widget)

Stack traceback and/or browser JavaScript console output

---

KeyError Traceback (most recent call last)
File c:\Users\NMiller\AppData\Local\pypoetry\Cache\virtualenvs\poetry-A7ZAAhQy-py3.11\Lib\site-packages\jupyter_bokeh\widgets.py:162, in BokehModel._sync_model(self, _model, content, _buffers)
160 elif kind == "ColumnsPatched":
161 model = content["model"]
--> 162 patches = content["data"]
164 assert isinstance(model, ColumnDataSource)
165 model.patch(patches, setter=setter)

KeyError: 'data'

Screenshots or screencasts of the bug in action

[hoxbro]

Hi, can you check what versions of Bokeh and ipywidgets_bokeh you have installed?

[nmillerPCMC]

bokeh version 3.2.2

I do not have ipywidgets_bokeh listed as installed. Is it perhaps included within ipywidgets v8.1.0? or do I need to install it directly?

[hoxbro]

Try installing it; be sure you get the latest version 1.5.

[nmillerPCMC]

installed 1.5. Same issue.

[hoxbro]

mmh, I don't have any clear ideas then, it works on my computer.

Can you send me your full package list with pip list or conda env export?

[nmillerPCMC]

(poetry-py3.11) PS C:\code\PCMC_LBCT\poetry> poetry show
alabaster 0.7.13 A configurable sidebar-enabled Sphinx theme
appdirs 1.4.4 A small Python module for determining appropriate platform-specific dirs, e.g. a "user data dir".
arrow 1.2.3 Better dates & times for Python
asgiref 3.6.0 ASGI specs, helper code, and adapters
astroid 2.15.4 An abstract syntax tree for Python with inference support.
asttokens 2.2.1 Annotate AST trees with source code positions
atomicwrites 1.4.1 Atomic file writes.
attrs 23.1.0 Classes Without Boilerplate
autopep8 2.0.2 A tool that automatically formats Python code to conform to the PEP 8 style guide
babel 2.12.1 Internationalization utilities
backcall 0.2.0 Specifications for callback functions passed in to an API
bcrypt 4.0.1 Modern password hashing for your software and your servers
beautifulsoup4 4.12.2 Screen-scraping library
binaryornot 0.4.4 Ultra-lightweight pure Python package to check if a file is binary or text.
black 23.3.0 The uncompromising code formatter.
bleach 6.0.0 An easy safelist-based HTML-sanitizing tool.
blinker 1.6.2 Fast, simple object-to-object and broadcast signaling
bokeh 3.2.2 Interactive plots and applications in the browser from Python
bqplot 0.12.40 Interactive plotting for the Jupyter notebook, using d3.js and ipywidgets.
certifi 2022.12.7 Python package for providing Mozilla's CA Bundle.
cffi 1.15.1 Foreign Function Interface for Python calling C code.
chardet 5.1.0 Universal encoding detector for Python 3
charset-normalizer 3.1.0 The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet.
chart-studio 1.1.0 Utilities for interfacing with plotly's Chart Studio
ciso8601 2.3.0 Fast ISO8601 date time parser for Python written in C
click 8.1.3 Composable command line interface toolkit
cloudpickle 2.2.1 Extended pickling support for Python objects
colorama 0.4.6 Cross-platform colored terminal text.
coloredlogs 15.0.1 Colored terminal output for Python's logging module
comm 0.1.3 Jupyter Python Comm implementation, for usage in ipykernel, xeus-python etc.
contourpy 1.1.0 Python library for calculating contours of 2D quadrilateral grids
cookiecutter 2.1.1 A command-line utility that creates projects from project templates, e.g. creating a Python package project from a Python pack...
cryptography 40.0.2 cryptography is a package which provides cryptographic recipes and primitives to Python developers.
dash 2.9.3 A Python framework for building reactive web-apps. Developed by Plotly.
dash-ag-grid 2.0.0 Dash wrapper around AG Grid, the best interactive data grid for the web.
dash-bootstrap-components 1.4.1 Bootstrap themed components for use in Plotly Dash
dash-core-components 2.0.0 Core component suite for Dash
dash-html-components 2.0.0 Vanilla HTML components for Dash
dash-mantine-components 0.12.1 Plotly Dash Components based on Mantine
dash-table 5.0.0 Dash table
datetime 5.2 This package provides a DateTime data type, as known from Zope. Unless you need to communicate with Zope APIs, you're probably...
debugpy 1.6.7 An implementation of the Debug Adapter Protocol for Python
decorator 5.1.1 Decorators for Humans
defusedxml 0.7.1 XML bomb protection for Python stdlib modules
diff-match-patch 20230430 Diff Match and Patch
dill 0.3.6 serialize all of python
django 4.2.1 A high-level Python web framework that encourages rapid development and clean, pragmatic design.
django-environ 0.10.0 A package that allows you to utilize 12factor inspired environment variables to configure your Django application.
docstring-to-markdown 0.12 On the fly conversion of Python docstrings to markdown
docutils 0.19 Docutils -- Python Documentation Utilities
dotwiz 0.4.0 DotWiz is a blazing fast dict subclass that enables accessing (nested) keys in dot notation.
environ 1.0 Stack Based Globals Management
et-xmlfile 1.1.0 An implementation of lxml.xmlfile for the standard library
executing 1.2.0 Get the currently executing AST node of a frame, and other information
fabric 3.0.1 High level SSH command execution
fastjsonschema 2.16.3 Fastest Python implementation of JSON schema
flake8 6.0.0 the modular source code checker: pep8 pyflakes and co
flask 2.3.2 A simple framework for building complex web applications.
frozendict 2.3.8 A simple immutable dictionary
gast 0.4.0 Python AST that abstracts the underlying Python version
git-python 1.0.3 combination and simplification of some useful git commands
gitdb 4.0.10 Git Object Database
gitpython 3.1.31 GitPython is a Python library used to interact with Git repositories
greenlet 2.0.2 Lightweight in-process concurrent programming
html5lib 1.1 HTML parser based on the WHATWG HTML specification
humanfriendly 10.0 Human friendly output for text interfaces using Python
icecream 2.1.3 Never use print() to debug again; inspect variables, expressions, and program execution with a single, simple function call.
idna 3.4 Internationalized Domain Names in Applications (IDNA)
imagesize 1.4.1 Getting image size from png/jpeg/jpeg2000/gif file
import-ipynb 0.1.4 Imports A.ipynb into B.ipynb
importlib-metadata 6.6.0 Read metadata from Python packages
inflection 0.5.1 A port of Ruby on Rails inflector to Python
influxdb 5.3.1 InfluxDB client
influxdb-client 1.36.1 InfluxDB 2.0 Python client library
intervaltree 3.1.0 Editable interval tree data structure for Python 2 and 3
invoke 2.1.1 Pythonic task execution
ipydatagrid 1.2.0 Fast Datagrid widget for the Jupyter Notebook and JupyterLab
ipykernel 6.22.0 IPython Kernel for Jupyter
ipython 8.13.2 IPython: Productive Interactive Computing
ipython-genutils 0.2.0 Vestigial utilities from IPython
ipywidgets 8.1.0 Jupyter interactive widgets
ipywidgets-bokeh 1.5.0 Allows embedding of Jupyter widgets in Bokeh layouts.
isort 5.12.0 A Python utility / library to sort Python imports.
itsdangerous 2.1.2 Safely pass data to untrusted environments and back.
jaraco-classes 3.2.3 Utility functions for Python class constructs
jedi 0.18.2 An autocompletion tool for Python that can be used for text editors.
jellyfish 0.11.2 Approximate and phonetic matching of strings.
jinja2 3.1.2 A very fast and expressive template engine.
jinja2-time 0.2.0 Jinja2 Extension for Dates and Times
jsonschema 4.17.3 An implementation of JSON Schema validation for Python
jupyter-bokeh 3.0.7 A Jupyter extension for rendering Bokeh content.
jupyter-client 8.2.0 Jupyter protocol implementation and client libraries
jupyter-core 5.3.0 Jupyter core package. A base package on which Jupyter projects rely.
jupyterlab-pygments 0.2.2 Pygments theme using JupyterLab CSS variables
jupyterlab-widgets 3.0.8 Jupyter interactive widgets for JupyterLab
kaleido 0.2.1 Static image export for web-based visualization libraries with zero dependencies
keyring 23.13.1 Store and access your passwords safely.
lazy-object-proxy 1.9.0 A fast and thorough lazy object proxy.
linkify-it-py 2.0.2 Links recognition library with FULL unicode support.
lxml 4.9.2 Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API.
markdown 3.4.4 Python implementation of John Gruber's Markdown.
markdown-it-py 3.0.0 Python port of markdown-it. Markdown parsing, done right!
markupsafe 2.1.2 Safely add untrusted strings to HTML/XML markup.
matplotlib-inline 0.1.6 Inline Matplotlib backend for Jupyter
mccabe 0.7.0 McCabe checker, plugin for flake8
mdit-py-plugins 0.4.0 Collection of plugins for markdown-it-py
mdurl 0.1.2 Markdown URL utilities
mistune 2.0.5 A sane Markdown parser with useful plugins and renderers
more-itertools 9.1.0 More routines for operating on iterables, beyond itertools
msal 1.23.0 The Microsoft Authentication Library (MSAL) for Python library enables your app to access the Microsoft Cloud by supporting au...
msgpack 1.0.5 MessagePack serializer
multitasking 0.0.11 Non-blocking Python methods using decorators
mypy-extensions 1.0.0 Type system extensions for programs checked with the mypy type checker.
nbclient 0.7.4 A client library for executing notebooks. Formerly nbconvert's ExecutePreprocessor.
nbconvert 7.3.1 Converting Jupyter Notebooks
nbformat 5.8.0 The Jupyter Notebook format
nest-asyncio 1.5.6 Patch asyncio to allow nested event loops
numpy 1.24.3 Fundamental package for array computing in Python
numpydoc 1.5.0 Sphinx extension to support docstrings in Numpy format
office365-rest-python-client 2.4.3 Microsoft 365 & Microsoft Graph Library for Python
openpyxl 3.1.2 A Python library to read/write Excel 2010 xlsx/xlsm files
packaging 23.1 Core utilities for Python packages
pandarallel 1.6.5 An easy to use library to speed up computation (by parallelizing on multi CPUs) with pandas.
pandas 2.0.1 Powerful data structures for data analysis, time series, and statistics
pandocfilters 1.5.0 Utilities for writing pandoc filters in python
panel 1.2.2 The powerful data exploration & web app framework for Python.
param 1.13.0 Make your Python code clearer and more reliable by declaring Parameters.
paramiko 3.1.0 SSH2 protocol library
parso 0.8.3 A Python Parser
pathspec 0.11.1 Utility library for gitignore style pattern matching of file paths.
pexpect 4.8.0 Pexpect allows easy control of interactive console applications.
pickleshare 0.7.5 Tiny 'shelve'-like database with concurrency support
pillow 10.0.0 Python Imaging Library (Fork)
platformdirs 3.5.0 A small Python package for determining appropriate platform-specific dirs, e.g. a "user data dir".
plotly 5.14.1 An open-source, interactive data visualization library for Python
pluggy 1.0.0 plugin and hook calling mechanisms for python
prompt-toolkit 3.0.38 Library for building powerful interactive command lines in Python
psutil 5.9.5 Cross-platform lib for process and system monitoring in Python.
psycopg 3.1.9 PostgreSQL database adapter for Python
psycopg-binary 3.1.9 PostgreSQL database adapter for Python -- C optimisation distribution
psycopg2 2.9.6 psycopg2 - Python-PostgreSQL Database Adapter
psycopg2-binary 2.9.6 psycopg2 - Python-PostgreSQL Database Adapter
ptyprocess 0.7.0 Run a subprocess in a pseudo terminal
pure-eval 0.2.2 Safely evaluate AST nodes without side effects
py2vega 0.6.1 A Python to Vega-expression transpiler.
pyarrow 12.0.0 Python library for Apache Arrow
pycodestyle 2.10.0 Python style guide checker
pycparser 2.21 C parser in Python
pydocstyle 6.3.0 Python docstring style checker
pyflakes 3.0.1 passive checker of Python programs
pygments 2.15.1 Pygments is a syntax highlighting package written in Python.
pyheck 0.1.5 Python bindings for heck, the Rust case conversion library
pyjwt 2.8.0 JSON Web Token implementation in Python
pylint 2.17.3 python code static checker
pylint-venv 3.0.1 pylint-venv provides a Pylint init-hook to use the same Pylint installation with different virtual environments.
pyls-spyder 0.4.0 Spyder extensions for the python-lsp-server
pymysql 1.0.3 Pure Python MySQL Driver
pynacl 1.5.0 Python binding to the Networking and Cryptography (NaCl) library
pyodbc 4.0.39 DB API Module for ODBC
pyorbital 1.7.3 Orbital parameters and astronomical computations in Python
pyqt5 5.15.9 Python bindings for the Qt cross platform application toolkit
pyqt5-qt5 5.15.2 The subset of a Qt installation needed by PyQt5.
pyqt5-sip 12.12.1 The sip module support for PyQt5
pyqtwebengine 5.15.6 Python bindings for the Qt WebEngine framework
pyqtwebengine-qt5 5.15.2 The subset of a Qt installation needed by PyQtWebEngine.
pyreadline3 3.4.1 A python implementation of GNU readline.
pyrsistent 0.19.3 Persistent/Functional/Immutable data structures
python-dateutil 2.8.2 Extensions to the standard Python datetime module
python-lsp-black 1.2.1 Black plugin for the Python LSP Server
python-lsp-jsonrpc 1.0.0 JSON RPC 2.0 server library
python-lsp-server 1.7.2 Python Language Server for the Language Server Protocol
python-slugify 8.0.1 A Python slugify application that also handles Unicode
pytoolconfig 1.2.5 Python tool configuration
pytz 2023.3 World timezone definitions, modern and historical
pyviz-comms 3.0.0 A JupyterLab extension for rendering HoloViz content.
pywin32 306 Python for Window Extensions
pywin32-ctypes 0.2.0
pywinpty 2.0.10 Pseudo terminal support for Windows from Python.
pyyaml 6.0 YAML parser and emitter for Python
pyzmq 25.0.2 Python bindings for 0MQ
qdarkstyle 3.1 The most complete dark/light style sheet for C++/Python and Qt applications
qstylizer 0.2.2 Stylesheet Generator for PyQt{4-5}/PySide{1-2}
qtawesome 1.2.3 FontAwesome icons in PyQt and PySide applications
qtconsole 5.4.3 Jupyter Qt console
qtpy 2.3.1 Provides an abstraction layer on top of the various Qt bindings (PyQt5/6 and PySide2/6).
questdb 1.1.0 QuestDB client library for Python
reactivex 4.0.4 ReactiveX (Rx) for Python
requests 2.29.0 Python HTTP for Humans.
retrying 1.3.4 Retrying
rope 1.8.0 a python refactoring library...
rtree 1.0.1 R-Tree spatial index for Python GIS
scipy 1.10.1 Fundamental algorithms for scientific computing in Python
setuptools 68.0.0 Easily download, build, install, upgrade, and uninstall Python packages
simple-file-checksum 1.2.2 Returns the MD5, SHA1, SHA256, SHA384, or SHA512 checksum of a file.
six 1.16.0 Python 2 and 3 compatibility utilities
smmap 5.0.0 A pure Python implementation of a sliding window memory map manager
snowballstemmer 2.2.0 This package provides 29 stemmers for 28 languages generated from Snowball algorithms.
sortedcontainers 2.4.0 Sorted Containers -- Sorted List, Sorted Dict, Sorted Set
soupsieve 2.4.1 A modern CSS selector implementation for Beautiful Soup.
sphinx 7.0.0 Python documentation generator
sphinxcontrib-applehelp 1.0.4 sphinxcontrib-applehelp is a Sphinx extension which outputs Apple help books
sphinxcontrib-devhelp 1.0.2 sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document.
sphinxcontrib-htmlhelp 2.0.1 sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files
sphinxcontrib-jsmath 1.0.1 A sphinx extension which renders display math in HTML via JavaScript
sphinxcontrib-qthelp 1.0.3 sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document.
sphinxcontrib-serializinghtml 1.1.5 sphinxcontrib-serializinghtml is a sphinx extension which outputs "serialized" HTML files (json and pickle).
spyder 5.4.3 The Scientific Python Development Environment
spyder-kernels 2.4.3 Jupyter kernels for Spyder's console
spyder-terminal 1.2.2 Spyder Plugin for displaying a virtual terminal (OS independent) inside the main Spyder window
sqlalchemy 2.0.12 Database Abstraction Library
sqlparse 0.4.4 A non-validating SQL parser.
stack-data 0.6.2 Extract data from python stack frames and tracebacks for informative displays
tenacity 8.2.2 Retry code until it succeeds
terminado 0.17.1 Tornado websocket backend for the Xterm.js Javascript terminal emulator library.
text-unidecode 1.3 The most basic Text::Unidecode port
textdistance 4.5.0 Compute distance between the two texts.
three-merge 0.1.1 Simple library for merging two strings with respect to a base one
tinycss2 1.2.1 A tiny CSS parser
toml 0.10.2 Python Library for Tom's Obvious, Minimal Language
tomlkit 0.11.8 Style preserving TOML library
tornado 6.3.1 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.
tqdm 4.65.1 Fast, Extensible Progress Meter
traitlets 5.9.0 Traitlets Python configuration system
traittypes 0.2.1 Scipy trait types
typing-extensions 4.5.0 Backported and Experimental Type Hints for Python 3.7+
tzdata 2023.3 Provider of IANA time zone data
tzlocal 5.0.1 tzinfo object for the local timezone
uc-micro-py 1.0.2 Micro subset of unicode data files for linkify-it-py projects.
ujson 5.7.0 Ultra fast JSON encoder and decoder for Python
urllib3 1.26.15 HTTP library with thread-safe connection pooling, file post, and more.
uuid 1.30 UUID object and generation functions (Python 2.3 or higher)
watchdog 3.0.0 Filesystem events monitoring
wcwidth 0.2.6 Measures the displayed width of unicode strings in a terminal
webencodings 0.5.1 Character encoding aliases for legacy web content
werkzeug 2.3.4 The comprehensive WSGI web application library.
whatthepatch 1.0.4 A patch parsing and application library.
widgetsnbextension 4.0.8 Jupyter interactive widgets for Jupyter Notebook
wrapt 1.15.0 Module for decorators, wrappers and monkey patching.
xarray 2023.4.2 N-D labeled arrays and datasets in Python
xyzservices 2023.7.0 Source of XYZ tiles providers
yapf 0.32.0 A formatter for Python code.
yfinance 0.2.18 Download market data from Yahoo! Finance API
zipp 3.15.0 Backport of pathlib-compatible object wrapper for zip files
zope-interface 6.0 Interfaces for Python

[sylvaint]

Getting same error.

[earshinov]

Same problem. Already tried experimenting with different versions of jupyter-boken, bokeh, ipywidgets, panel etc. Added

 elif kind == "ColumnsPatched":
+    import sys
+    print(content, file=sys.stderr)
     model = content["model"]
     patches = content["data"]
 
     assert isinstance(model, ColumnDataSource)
     model.patch(patches, setter=setter)

to jupyter_bokeh/widgets.py directly inside my venv and got this:

{'kind': 'ColumnsPatched', 'attr': 'data', 'model': {'id': '0e79a6be-6a5d-46f3-a5ff-00145578fdab'}, 'patches': {'type': 'map', 'entries': [['name', [[7, 'value UPD']]]]}}

I have no idea where it comes from, but looks like it isn't the format jupyter_boken expects.

I am running this on Windows inside VS Code (with its built-in support for Jupyter notebooks).

[maximlt]

I've been able to reproduce and opened a tentative PR on jupyter_bokeh to fix the reported bug bokeh/jupyter_bokeh#206.