Date: 2023-07-25
This micro-release focuses on a small number of enhancements and rendering related bug fixes. Specifically it adds support for notifying users when the page is ready and when the Websocket disconnects using corresponding config options and upgrades the Vizzu version, thereby adding support for tooltips and enabling animations when the data is updated. The bug fixes are primarily focused on ensuring components such as GridStack
and Tabulator
render correctly and do not unnecessarily re-render or reload stylesheets. Many thanks and welcome to @owenlamont, @sciemon, @DGLaurits, @Ciemarr and @Kislovskiy for their first contributions to Panel and the maintainers @MarcSkovMadsen, @Hoxbro and @philippjfr for contributing to this release.
- Add
config.disconnect_notification
andconfig.ready_notification
(#5244) - Add
Vizzu
tooltip support and allow animations when data is updated (#5258) - Style tweaks for
Card
andSelect
components (#5280)
- Ensure
GridStack
children are sized correctly after render (#5242) - Fix
Tabulator
expanded row rendering (#5253) - Fix bug where local
PDF
pane is rendered as base64 string (#5264) - Avoid full re-rendering when updating
HTML
based components (#5275) - Ensure that
Design
does not trigger unnecessary updates to stylesheets (#5278) - Treat
Tabulator
row_contents
as real children ensuring layout behaves correctly (#5292) - Fix
Video
min_height
andmax_height
(#5296) - Make
TextEditor
invisible until CSS is loaded (#5297) - Fix
disabled
parameter on editable sliders (#5319
- Update pyodide and pyscript versions and switch to compiled build (#5309)
- Add VS Code How To Guide (#5196)
- Fix binder (#5257)
- Various smaller documentation fixes ([#4821], #5249, #5266)
- Tweak example in the Build an App section of Getting Started (#5302)
- Update pyodide documentation with latest versions (#5234, #5308)
- Remove MyST inline directives from JupyterLite notebooks (#5311)
Date: 2023-07-06
This release primarily aims at providing compatibility with Bokeh 3.2 and the upcoming Param 2.0 release. Additionally it includes a number of improvements including the ability to generate multiple outputs from a generator using the new 'append'
mode and updates and fixes for Tabulator. We are also excited about the new Streamlit migration guide and a number of bug fixes. Many thanks to @sdc50, @xiaoyang-sde and the core team including @ahuang11, @MarcSkovMadsen, @Hoxbro, @maximlt and @philippjfr for contributing to this release.
- Add
append
mode for reactive generator output (#5129) - Upgrade to
Tabulator
5.5 ([#5182](holoviz#5182)) - Add support for
LoadingSpinner
label (#5194) - Add the
editable
parameter toPerspective
(#5211) - Add support for setting
theme_classes
onTabulator
(#5216) - Move resource handling onto
BaseTemplate
(#5228)
- Correctly process fields on
Vega
(and altair) selections (#5164) - Fix for resource handling particularly when working with Django (#5175)
- Fix
ChatBox
bubble width (#5172) - Fix
Tabulator.visible
handling ([#5182](holoviz#5182)) - Fix programmatic updates to
Tabulator.page
(#5187) - Ensure bokeh events generated in pyodide convert
None
tonull
(#5191) - Improve notebook detection (#5201)
- Reduce priority of
_repr_<img>_
to ensure_repr_html_
takes precedence (#5217) - Ensure we do not modify
Tabulator.hidden_columns
inplace (#5218) - Alignment and styling fixes for text input and button widgets (#5219)
- Fix updates to
Plotly
nested properties such as selections (#5227)
- Remove markdown-it-py pins (#5159)
- Forward compatibility fixes for Param 2.0 (#5169, #5198)
- Compatibility with Bokeh 3.2 (#5185)
Date: 2023-06-21
The first micro-release in the 1.1.x series brings a large number of bug fixes and some minor enhancements. The most important fixes include compatibility with JupyterLab 4 and improved support for updating ipywidgets. This release saw a lot of contributors and we welcome @TBym, @Glatzli, @theyashi, and @enismaxim1 to the Panel developer community and thank our existing contributors and maintainers @ahuang11, @Hoxbro, @sophiamyang, @maximlt, @MarcSkovMadsen, and @philippjfr for their continued contributions.
- Implement
per_session
cache (#5117) - Enhancements for
ChatBox
including methods to update rows and hide names (#5118, #5118)
- Fix
Progress
indicatorsizing_mode
(#5051) - Fix various
ChatBox
issues (#5065, #5101, #5101) - Ensure kernel shutdown futures are not collected in Jupyter server extension (#5069)
- Add bokeh version check for notebook to better support bokeh dev versions (#5071, #5093)
- Fix false warning emitted when constructing a Param pane with
throttled
oronkeyup
(#5078) - Allow to updating/clearing
enabled_dates
onDatetimePicker
(#5089) - Ensure session arguments are correctly parsed by Jupyter executor (#5106)
- Fix
defer_load
handling (#5107) - Fix styling with filters in
Tabulator
(#5110) - Fix issues when using
in
filter with single value on Tabulator (#5125) - Add fallback if
ReactiveHTML
shadow DOM lookup fails (#5126) - Allow automatic loading of extensions during launch and warn about missing extensions (#5144)
- Correctly process fields on
Vega
(and altair) selections (#5145) - Immediately dispatch
ColumnDataChangedEvent
fixingPlotly
plots not updating (#5147)
- Overhaul Perspective reference page (#5087)
- Add new HuggingFace deployment documentation (#5158)
- Enable and document mathjax extension in Markdown reference (#5158)
- Correctly serialize new IPyWidget models on creation (#5114)
- Ensure we handle JupyterLab 4 comm messages correctly (#5140)
- Renamed Trend parameter title to name (#5092)
Date: 2023-05-31
This is the first minor release in the 1.x series with a number of new features and small bug fixes. The main features we are excited about are the new ChatBox
widget added by @ahuang11 and support for reactive generators. Many thanks to @ahuang11, @philippjfr and @Hoxbro for contributing to this release and our amazing community for reporting issues.
- Add the
ChatBox
widget (#4702) - Add a standalone
TooltipIcon
indicator (#4909) - Implement support for reactive generator functions (#5019)
- Allow setting
on_*
handlers in constructor (#5026) - Allow controlling initial
Template
sidebar state (#5033)
- Handle height responsiveness of
HoloViews
layout correctly (#5009) - Apply
Plotly
toolbar colors depending on template (#5012) - Fix Fast
Design
style variables (#5015) - Allow reactive updates to override constant parameters (#5032)
- Fix
Tabulator
header filter styling (#5038) - Ensure Jupyter extensions warns users if app has no contents (#5041)
Date: 2023-05-31
Another micro-release in the 1.0.x series addressing small issues reported by our engaged community. Many thanks to @ahuang11, @simzer, @alexmilowski and the core contributors @droumis, @Hoxbro and @philippjfr for contributing to this release.
- Fix global loading spinner (#4936)
- Fix issues resolving whether
IPyWidget
model (#4939) - Fix recursive and inplace updates on reactive panes (#4946, #4958)
- Fix issues with single
Select
widget (#4947) - Ensure CSS
config
parameters can be passed toTemplate
constructor (#4948) - Fixed vizzu data series type conversion for datetime (#4955)
- Small documentation fixes (#4943, #4960)
- Fix
icon
onToggle
andButton
widget (#4961) - Fix Volume definition on
Video
pane - Ensure icon renders on
Toggle
button (#4969) (#4970) - Ensure
Card.header_color
is correctly applied (#4971) - Update
param.List
signatures to suppress warnings (#4973) - Fix font loading in Vanilla template (#4975)
- Guard is_file check on Windows (#4985)
- Fix serialization of
Plotly.selection_data
(#4987) - Speed up dynamic layout updates (#4989)
Date: 2023-05-25
Another micro-release in the 1.0.x series with a number of smaller bug fixes. Most importantly this resolves issues with loading indicators and with apps converted to the pyodide-worker
target. Many thanks to @n3011, @Hoxbro and @philippjfr for contributing to this release.
- Resolve
_repr_jpeg_
methods correctly (#4904) - Fix handling of queued events in pyodide worker (#4913)
- Various fixes for loading indicator (#4915)
- Allow
-1
inTabs.active
and allow recovering from closed tabs (#4920) - Ensure
HoloViews
layout is correctly initialized whencenter
is set (#4921) - Ensure VSCode editor does not apply white background to Panel output (#4923)
- Do not error on deserialization errors in notebooks (#4927)
- Ensure basic auth provider works when dynamically starting server (#4926)
- Ensure
Param
panename
is updated when object changes (#4928) - Align functionality and styling of
FileDownload
withButton
(#4929) - Fix equality comparisons of parameter values when updating a
Pane
(#4934) - Warn about ignored widget parameters on
Param
pane (#4934)
Date: 2023-05-19
A micro-release in the 1.0.x series with a number of bug fixes and documentation tweaks. Many thanks to @jbednar and @philippjfr for contributing to this release.
- Ensure
Design
stylesheets are not replaced when updating component stylesheets (#4883) - Ensure tooltips are rendered correctly as HTML (#4887)
- Fix loading of index page resources (#4891)
- Ensure
FloatPanel
can be rendered in classic notebooks (#4892) - Attempt rendering output in notebooks even if not all resources have been initialized (#4893)
- Do not load large bokeh-mathjax bundle in notebooks by default (#4895)
- Make Fast template sidebar opening transition smoother (#4898)
- Ensure new items added to
Card
layout are rendered (#4899) - Fix logo rendering in BasicAuth template (#4900)
- Various documentation tweaks (#4884, #4888, #4889, #4901)
- Update Vega/Altair reference notebook to use altair 5 APIs (#4894)
Date: 2023-05-18
A micro-release fixing some small issues discovered in Panel 1.0. Thank you to @droumis, @Hoxbro and @philippjfr for contributing fixes.
- Ensure
Reactive
objects wrapped in reactive are re-rendered correctly (#4868) - Tweaks for Material
Design
component inset label styling (#4877) - Ensure
SlidesTemplate
slides changes trigger updates in thepn.state.location.hash
(#4878)
Date: 2023-05-17
The Panel 1.0 release is finally here and it brings a huge number of improvements. The largest improvements in this release come from an upgrade from Bokeh 2.x to Bokeh 3.x. Bokeh overhauled its internal layout engine and stylesheet handling, making applications significantly more performant and customizable going forward.
This release marks a huge step forward in the usability of Panel but is also just a first step in leveraging many of the new capabilities that the updated layout engine and design system affords. In the coming months we will continue to improve and polish the UI and UX and make it easier for you to extend Panel as needed.
For now we want to thank the many people that contributed to this release either by contributing directly or by testing and providing feedback. Many thanks to the core contributors @MarcSkovMadsen, @Hoxbro, @maximlt, @jbednar, @droumis and @philippjfr and the outside contributors @ahuang11, @cdeil, @MridulS, @AndrewMaged814, @midnighter and @wendrul.
The three main features we want to highlight as part of this release are:
- Add new and highly performant layout engine, addressing many performance and layout issues (#4326, #4463, #4491, #4503, #4522, #4690)
- Add unified Design and Theme system (#4413, #4475, #4466, #4540, #4548, #4770, #4792, #4793, #4801)
- Implement support for passing parameters, widgets and bound functions by reference for simple and powerful reactivity (#4495, #4505, #4603, #4606)
Some of the changes related to the new layout engine and design system will require small updates to your existing applications. To make this transition as smooth as possible we have provided an upgrade/migration guide.
This release also adds a number of exciting new components you can leverage in your applications:
- Add
Swipe
layout (#3007) - Add
Switch
widget ([#4130](holoviz#4130)) - Add
Vizzu
pane (#4226, #4739) - Add
BrowserInfo
model to expose browser window and navigator APIs (#4533) - Add
BasicAuth
provider for quick password based auth (#4684) - Add
FloatPanel
layout (#4707, #4711) - Add a
SlidesTemplate
based on reveal.js to create interactive presentations (#4798)
There are also a number of major enhancements in this release that we are very excited about:
- Improved Markdown rendering (#4688)
- Add support for tooltips on widgets ([#4130](holoviz#4130), #4621, #4643)
- Ensure
.ipynb
and.md
based apps can be used as--index
(#4432) - Add support for selecting
format
andencoding
for Matplotlib image output and implemented responsive Image sizing (#4514) - Add support for icons on
Button
(#4797) - Add generic
Image
pane that auto-detects the image filetype (#4551) - Add support for writing applications in Markdown (#4602)
- Improve support for inline resources for Jupyter (#3013, #4787)
- Add ability to reuse sessions to speed up rendering (#3679, #4658)
- Improve notebook resource and extension loading (#4752)
- Add ability to add global loading spinner to application(s) (#4659)
The last major change we want to highlight is a complete overhaul of the documentation, moving from long and difficult-to-navigate user guides to distinct easily applied how-to guides along with separate, longer explanation sections. We also put in significant effort to ensure that most of our documentation can be run interactively in Pyodide or JupyterLite.
- Modernize documentation by using latest pydata-sphinx-theme (#4609, #4701)
- Add upgrade/migration guide (#4693)
- Add Explanation section (#2797, #3168, #4664)
- Migrate user guide to how-to guides (#4244, #4251, #4267, #4290, #4412, #4422, #4759, #4774)
- Completely overhaul App Gallery (#4047, #4565, #4574, #4598, #4683)
- Use pyodide rendering throughout documentation and add JupyterLite links (#4751)
- Bokeh 3 compatibility (#4098, #4117, #4129, #4140, #4150, #4275, #4467, #4435, #4441, #4449, #4448, #4508)
- Upgrade plotly.js to 2.18.0 (#4320)
- Upgrade Tabulator to 5.4 and optimize rendering (#4482](holoviz#4482))
- Upgrade Echarts to 5.4.1 (#4538)
- Upgrade pyodide (0.23.1) and pyscript versions (#4344)
- Add support for altair and vega-lite v5 (#4488)
- Add support for latest versions of ipywidgets (#4716, #4766, #4779)
- Deprecate
IDOM
pane (#4293](holoviz#4293), #4323) - Deprecate
Viewable.app
(#4293](holoviz#4293)) - Deprecate
Viewable.pprint
(#4347) - Deprecate and remove
RGGPlot
- Rename
Ace
toCodeEditor
(#4627)
- Pandas is now only a (lazy) runtime dependency (#4411)
Tabulator.frozen_rows
now respects the order of rows in the data instead of the order in which thefrozen_rows
were defined (#4482](holoviz#4482))- Make
margin
defaults consistent across widgets and panes (#4528) - Extension calls must specify all required extensions (#4562)
- The
.embed
method now returns a Mimebundle object for rendering (#4791) - Remove
panel examples
CLI command and pyct dependency (#4691) - Expose all layout components in top-level API (#4696)
- Allow to set the log level of the Admin logger (#3495)
- Add
pn.state.served
to simplify determining whether script is executed as an application or in an interactive session (#4252) - Add
pn.config.loading_indicator
to determine whether to show loading indicator by default (#4259)
- Improve startup, error handling and shutdown of Jupyter kernels (#4364)
- Log errors in JupyterLab preview to server logs (#4773)
- Support binary JS -> Python communication in notebooks (#4635)
- Modify sys.path when running inside Jupyter Kernel (#4489)
- IPython
display
compatibility in pyodide builds (#4270) - Ensure
panel convert
respectspn.config
(#4359) - Fix notification support in Pyodide (#4387)
- Handle cancelling and empty value edit events on
Tabulator
(#4343) - Add favicon to base template (#4626)
- Ensure
CrossSelector
filters apply on each keystroke (#4339) - Do not re-create
Vega.selections
object unless selections changed (#4497) - Standardize parameter mapping APIs (#4386)
- Add
Plotly.link_figure
parameter (#4333) - Add support for .JPEG file extension in the
JPG
pane (#4532) - Make periodic callback
counter
a parameter (#4134) - Add Echarts events (#2174)
- Additional cache support (#4663, #4667)
- Fix caching on undecorated Parameterized method (#4332)
- Ensure that global notification object can be used inside notebook callbacks (#4331)
- Ensure
hash_funcs
are applied recursively in cache (#4334) - Fix cache
FIFO
policy bug (#4789) - Fix specifying custom index with relative path (#4288)
- Fix issue reusing
FileDownload
model (#4328) - Fix
DeckGL
tooltip handling (#4628) - Fix NumPy integer/floating checks on
Perspective
(#4366) - Ensure
memray
profiler temporary file is flushed (#4666) - Fix mimetype issue on windows (#4738)
- Fix
Plotly
undefined value errors for eventdata (#4355)
- Ensure updates to
Tabulator
formatter or editor updates model (#4296, #4781) - Ensure
Tabulator
internal_index_mapping
is updated on stream (#4292) - Ensure
Tabulator
header filters aren't treated as regex (#4423) - Ensure
Tabulator
styles
are re-applied when local pagination changes (#4795)
- Ensure JupyterLab preview works on Windows (#4819)
- Ensure notifications are enabled even if hv.extension has been loaded (#4330)
Date: 2023-03-04
This release is a small bug fix release preceding the upcoming major release of Panel 1.0. Many thanks to the contributors to this release which include @MarcSkovMadsen, @maximlt, @Hoxbro and @philippjfr.
- Fix
Tabulator
client-side string filters by not parsing them as regex (4423) - Fix the RGGPlot pane (#4380)
- Fix
panel examples
command by ensuring examples are correctly packaged (#4484) - Fix event generation by considering NaNs as equal when comparing Numpy arrays (#4481)
- Use cache from previous sessions when using
to_disk
(#4481) - Fix relative imports when running inside Jupyter Kernel (#4489)
- Do not re-create
Vega.selections
object unless selections changed (#4497)
- Add support for altair and vega-lite v5 (#4488)
- Use latest react-grid from CDN (#4461)
Date: 2023-01-28
This release introduces a large number of bug fixes and minor enhancements. Due to the upcoming release of Panel 1.0 we have also made the unconventional decision to issue new deprecation in a micro release. Specifically the IDOM
pane and Viewable.app
and Viewable.pprint
methods have been scheduled for deprecation. Many thanks to the contributors to this release which include @wendrul, @droumis and the core team @MarcSkovMadsen, @maximlt, @Hoxbro and @philippjfr.
- Ensure streamed rows on
Tabulator
can be edited (#4292) - Ensure changes on
Tabulator
formatter
andeditor
models are reflected in frontend (#4296) - Ensure cancelling edit does not clear cell on
Tabulator
(#4343) - Ensure inserting empty data on numeric column in
Tabulator
does not error (#4343)
- Fix issues rendering components as ipywidgets for some versions of ipykernel (#4289)
- Add warning if custom resources could not be loaded in notebook (#4329)
- Ensure notifications are enabled even if
hv.extension
has been loaded (#4330) - Ensure global notification object can be used inside notebook callbacks (#4331)
- Fix return type of
Widget.from_param
(#4335) - Ensure type annotation allows
str
andPathLike
objects onpanel.serve
(#4336) - Fix type annotations on
panel.io.convert.convert_app
(s) (#4342)
- Ensure markdown links render correctly in template sidebar (#4222)
- Improve .applies for
ECharts
andDeckGL
(#4224) - Fix specifying custom
--index
with relative path (#4288) - Skip
on_load
callbacks in liveness check (#4302) - Ensure re-rendered
FileDownload
still fetches live data (#4328) - Fix handling of
panel.cache
on undecoratedParameterized
method (#4332) - Ensure user provided
hash_funcs
are applied inpanel.cache
(#4334) - Fix plotly eventdata undefined val (#4355)
- Ensure
panel convert
respectspanel.config
options (#4359) - Propagate options from HoloViews and Bokeh plots to enclosing Pane (#4360)
- Propagate options from dynamic components such as ParamMethod and Interactive to enclosing layout (#4360)
- Allow to set the log level of the Admin logger (#3495)
- Make
refresh_token
available in Auth (#4227) - Simplify determining whether script is executed as application with
pn.state.served
property (#4252) - Add
loading_indicator
to globalconfig
(#4259) - IPython
display
compatibility in pyodide builds (#4270) - Split
PanelJupyterExecutor
into separate module (#4276) - Allow dynamic loading of javascript modules in
ReactiveHTML
(#4319) - Add
Plotly.link_figure
parameter (#4333) - Ensure
CrossSelector
filters apply on each keystroke (#4339) - Improve startup, error handling and shutdown of Jupyter kernels in
jupyter_server_extension
(#4364)
- Upgrade plotly.js to 2.10.1 (#4320)
- Upgrade to pyodide 0.22.1 in
panel convert
(#4334) - Upgrade to pyscript 2022.12.01 in
panel convert
(#4334) - Fix compatibility of Perspective pane with Numpy 1.24 (#4362)
- Add deprecation warning to
IDOM
pane (#4293) - Add deprecation warning for
Viewable.app
andViewable.pprint
methods (#4293, #4347)
- Add CONTRIBUTING.md (#4262)
- Add Gallery VideoStream example (#4047)
- Add description of literal options to the docs for
ReactiveHTML
(#3803)
Date: 2022-12-14
This release primarily focuses on bug fixes. In particular it resolves various issues with support for rendering ipywidgets
(particularly in ipywidgets>=8.0
) and also fixes a number of issues with the Jupyter Server previews. Many thanks for @govinda18, @joelostblom, @banesullivan, @xeldnahcram, @geronimogoemon, @minasouliman, @peterfpeterson, @jlstevens and the core maintainers @maximlt, @Hoxbro, @MarcSkovMadsen and @philippjfr for their contributions to this release.
- Add support for
Tqdm.process_map
(#4093) - Support non-vtkPolyData types in vtk synchronizer (#4124)
- Allow invoking
convert
functions from pyodide (#4135) - Support
step
format in date sliders (#4152) - Add a
Reacton
component to simplify rendering (#4190)
- Ensure Jupyter server extension serves resources, extensions and paths correctly (#4083, #4133, #4202)
- Ensure
IPyWidget
comm does not break when new widget is rendered (#4091) - Improving detection of comms in VSCode and Google Colab (#4115)
- Ensure
.js
mimetype is served correctly on Windows (#4118) - Ensure unhiding
Tabulator
columns renders cells correctly (#4119) - Ensure embedded
Slider
widgets initialize with correct default (#4121) - Handle missing event loop in thread gracefully (#4123)
- Ensure
Matplotlib
pane handles explicitwidth
/height
settings correctly (#4128) - Allow
Viewer
to render servable but non-viewable objects (#4131) - Fix regression in tracking sessions in admin interface (#4132)
- Ensure
Tabs
headers do not scroll unncessarily (#4146) - Ensure
Location
model reports as idle (#4159) - Fix auth error template rendering (#4162)
- Fix issues with value on
EditableSlider
when it is outsidefixed_start
/fixed_end
range (#4169) - Ensure
ipywidgets
events are handled the same way as regular events (#4171) - Don't raise
TypeError
for class which contains__panel__
(#4174) - Do not dispatch events if bokeh
Document
is set to hold events (#4178) - Execute
onload
callbacks immediately in pyodide app (#4191) - Improve
IPyWidget
kernel handling in server contexts (#4195) - Fix rendering of
IPyWidget
with child views in the notebook (#4197)
Date: 2022-10-28
This release primarily addresses regressions introduced in 0.14.0 and various long standing bugs. Many thanks to external contributors @liu-kan and @KedoKudo and the maintainers @Hoxbro, @maximlt and @philippjfr for contributing a number of fixes.
- Improve support for
requests
in pyodide (#3973) - Add option to clear value of DatetimePicker (#3990)
- Add support for hashing dates in pn.cache (#4004)
- Silence
EMPTY_LAYOUT
warnings (#4056)
- Fix Jupyterlite and latest PyScript compatibility (#4040)
- Correctly handle resource mode in when converting to WebAssembly (#3967)
- Correctly handle future exceptions on threads (#3977)
- Fix
panel serve
index template (#3980) - Do not error if
curdoc
has been destroyed (#3994) - Ensure extensions loaded in jupyter kernel are served by StaticHandler (#4000)
- Various fixes for OAuth handling with
pn.serve
(#4006) - Fix bug in
on_load
callback exception handling (#4007) - Ensure periodic callbacks are only started on main thread (#4011)
- Ensure jupyter server extension handles explicit
root_dir
(#4029) - Ensure futures are correctly awaited when executed on thread (#4031)
- Ensure
Tabulator
handles filtering on edited values correctly ifshow_index=False
(#3988, #4016) - Ensure
Tabulator
declares numeric sorter for numeric dtypes (#3999) - Fix regression initializing
DiscreteSlider
with non-integer value (#4009) - Ensure that template.config.raw_css is correctly applied (#4018)
- Fix handling
MenuButton
clicks whensplit=True
(#4021) - Ensure styling on
Tabulator
with empty DataFrame does not error (#4028) - Allow changing
level
onDebugger
widget (#4057
Date: 2022-09-30
This release focuses on three main themes:
- Support for running Panel apps entirely in the browser using WebAssembly (via Pyodide and PyScript)
- Improvements in the app-user experience by making it easier to build responsive and performant applications
- Improvements in the developer experience through static typing and docstrings.
Many, many thanks to everyone who filed issues or contributed to this release. In particular we would like to thank @janimo, @xavArtley, @thuydotm, @jmosbacher, @dmarx, @2WoLpH, @ipopa144, @sdc50 for contributions and @philippjfr, @Hoxbro, @maximlt, and @MarcSkovMadsen for ongoing maintenance and development.
- Add support for converting Panel apps to pyscript/pyodide (#3817, #3830, #3851, #3856, #3857, #3858, #3860, #3861, #3863, #3864, #3868, #3878)
- Manage our own CDN to improve performance and reliability for delivering JS payloads (#3867, #3870)
- Add ability to
defer_load
of components (#3882) - Add
pn.widget
helper function (#1826, #3589) - Add
config.exception_handler
to easily capture, log and notify users about errors (#3893) - Implement
pn.cache
function for memoization support (#2411) - Rewrite server extension to run Panel applications in kernels so that previews run in the same environment as the deployed app (#3763)
- Add ability to define authorization callback (#3777)
- Support memray profiler (#3509)
- Add liveness endpoint (#3832)
- Add ability to configure exception handler (#3896)
- Ensure OAuth redirects to requested app and retains query arguments (#3555)
- Add extension entry point (#3738)
- Update Admin Logs page to use
Tabulator
(#3694) - Ensure
location.unsync
unsets query params (#3806) - Allow None value on numeric sliders and
LiteralInput
(#3174) - Allow serving admin panel with
pn.serve
(#3798) - Improve
ReactiveHTML
loop support and validation (#3813) - Support declaring
Perspective.plugin_config
pane (#3814) - Do not flicker busy indicator during
--autoreload
check (#3804) - Improve robustness of
state.curdoc
in threaded and async contexts (#3776, #3810, #3834) - Support datetime bounds for
DatetimePicker
andDatetimeRangePicker
(#3788) - Allow setting the Oauth provider using environment variables (#3698)
- Implement
Player.value_throttled
(#3756) - Ensure that URL query parameters are preserved during OAuth (#3656)
- Improve
Markdown
code syntax highlighting (#3758) - Ensure components do not re-render if
background
orloading
parameters change (#3599) - Add ability to define admin dashboard plugins (#3668)
- Do not calculate embed state for disabled widgets (#3757)
- Add hard bounds to editable sliders (#3739)
- Add bundling of shared resources (#3894)
- Add
Tabulator
as defaultparam.DataFrame
widget (#3912)
- Overhaul documentation (#3568)
- Improve Fast Template docstrings (#3570)
- Reorganize docs and convert static notebooks to Markdown (#3875, #3833)
- Add DevelopingCustomModels to the webpage (#3710)
- Improve typing (#3561, #3562, #3592, #3604, #3714, #3729)
- Support ipywidgets>=8.0 (#3782)
- Bump jsoneditor package (#3838)
- Upgrade to Tabulator 5.3.2 (#3784)
- Improve Django compatibility (#3843, #3835)
- Remove all usage of deprecated
Pane
- Ensure closed websocket does not cause errors
- Handle session and websocket close cleanly (#3769)
- Fix prefix handling for admin page (#3809)
- Support admin dashboard in multi-process deployments (#3812)
- Improve document cleanup when not invoked using
server_destroy
(#3842) - Ensure
pn.state.execute
dispatches immediately if possible (#3859) - Ensure autoload.js resources are appropriately prefixed (#3873)
- Fix support for copying cells and creating new views in JupyterLab (#3652)
- Ensure output renders in VSCode notebook with latest ipywidgets (#3765)
- Resolve issues with Jupyter slowdown due to event_loop patching on Windows (#3770)
- Do not re-render
Tabulator
oncss_classes
orbackground
change (#3598) - Ensure expand icon updates on
Tabulator.expanded
change (#3703) - Update
page
Parameter when pagination is 'local' (#3704) - Do not apply
sorters
onTabulator
cell edits (#3744) - Ensure
Tabulator.controls
renders (#3768) - Ensure correctness of event row and selection indices in
Tabulator
(#3771, #3841) - Fix issues with frontend and backend sorters being out of sync in Tabulator (#3825, #3839)
- Fix default values of a list header filter in
Tabulator
(#3826) - Fix the edit event with a python filter in
Tabulator
(#3829) - Disable client-side date filtering on
Tabulator
(#3849) - Support editing of pandas masked array dtypes in
Tabulator
(#3850) - Fix issues editing a cell when client-side filtering applied (#3852)
- Do not recompute data when local pagination is enabled (#3854)
- Don't skip filtering when the column name is undefined (#3862)
- Fix
FileInput.save
(#3579) - Fix issues with
Matplotlib.high_dpi
option (#3591, #3594) - Ensure layout recomputes on
HTML
/Markdown
re-rerender (#3616) - Allow overriding all widget parameters on
Param
pane (#3754) - Ensure
DatePicker
start/end are transformed when jslinked (#3759) - Ensure notifications can be enabled without a template (#3820)
- Ensure
ReactiveHTML
inline callbacks on loop variables return correct node (#3840) - Ensure that
Perspective
does not take precedence on empty dict (#3936) - Improve
sizing_mode
behavior when width/height are specified (#3955) - Do not load notyf resources unless notifications are enabled (#3958)
Date: 2022-05-20
- Add repr to cell and edit events (#3434)
- Improvements for pyodide handling (#3444, #3508, #3511)
- Add support for
Plotly
animation frames (#3449) - Implement single and multi-selection in Vega pane (#3470, #3499, #3505)
- Add typehints to help developers and users (#3476)
- Add
pn.state.execute
method to run callbacks in the right context (#3550) - Add support for asynchronous
on_edit
/on_click
Tabulator callbacks (#3550) - Add
DatetimeRangeSlider
widget (#3548)
- Fix pyodide array buffer conversion (#3409)
- Allow
placeholder
to be updated onTextEditor
(#3427) - Fix issues editing data in sorted columns (#3431)
- Ensure bokeh correctly detects whether
HTML
/Markdown
contains latex (#3438) - Ensure notifications work on server created with
pn.serve
and.show
(#3445) - Replace slickgrid background image in custom
FastTemplate
CSS (#3461) - Ensure
param.Array
is synced correctly inReactiveHTML
(#3456) - Ensure selection on filtered
Tabulator
does not raise out-of-bounds error (#3462) - Ensure updating
Tabulator
does not reset scroll position (#3450) - Various fixes for
FastTemplate
CSS (#3464) - Ensure
Tabulator
on_click
andon_edit
events return correct row when paginated (#3410) - Fix broken JupyterLab preview (#3469)
- Skip
Tabulator
row selection when clicking on expand button (#3474) - Ensure overflow in
MaterialTemplate
is not clipped (#3492) - Allow providing
--index
for directory style apps (#3493) - Ensure Tabulator expanded rows are sized correctly after re-render (#3507)
- Make CodeHandler robust to document that has been destroyed (#3510)
- Do not sync
DataFrame
widgetsorters
parameter with bokeh model (#3527) - Ensure that HoloViews callback events are not auto-dispatched (#3528)
- Ensure non-updateable
Pane
can be updated insideTabs
(#3532) - Fix slowdown of JupyterLab on Windows (#3531)
- Fix issue with inverted data when editing a cell in a sorted Tabulator column (#3531)
- Ensure
Tabulator
has correct layout after re-render (#3536) - Do not log events generated by admin page on the admin page (#3539)
- Fix Tabulator events when the original column is not a string (#3541)
- Adds docstrings to layouts (#3417)
- Show how to filter categorical and temporal data from
Altair
/VegaLite (#3401) - Document how to make a
Tabulator
column non-editable (#3489)
Date: 2022-04-15
Blog post: https://blog.holoviz.org/panel_0.13.0.html
- Add support for scheduling global callbacks (#2661)
- MathJax now supported in
Markdown
andHTML
(#2847) - Improved support for async (e.g. in ParamMethod/ParamFunction, bind, onload etc.) (#2964, #3264, #2737)
- Support rendering Panel objects in Jupyterlite and Pyodide (#3252, #3361, #3381)
- Add
JSONEditor
widget (#1974) - Add quill.js based
TextEditor
widget (#2875) - Add
GenericLoginHandler
for custom OAuth (#2873, #2960) - Implement
Notifications
API for templates (#3093) - Implement built-in threading (#2597, #2632, #3081)
- Implement profiling page for Panel (#2645, #2664, #2667, #2707, #2905)
- Implement support for
Vega
events (#2592) - Implement
ArrayInput
widget (#2047) - Add
Debugger
widget (#2548) - Add LinearGauge indicator (#3222)
- Add
ComponentResourceHandler
to server (#3284, #3289, #3303)
- Editable sliders
name
can be changed (#2678) - Make
Plotly
pane resize when window resizes (#2704) Viewer
objects can now be used withpn.serve
(#2769)VTK
improvement for NaN handling (#2826)- Add support for configuring
Vega
output (#2846) - Add a
groups
parameter toSelect
widget (#2876) - Add
Card.hide_header
option (#2947) - Support bytes and pathlib.Path objects on Image (#2963, #3294)
- Add programmatic control over Player widget (#2970, #2994)
- Add alphabetical and custom sort to
Param
(#2986) - Add
autoplay
andmuted
toAudio
andVideo
(#3053) - Add a
disabled_options
parameter to a custom Select widget (#3067) - Expose the
orientation
parameter of the button group widgets (#3083) - Add support for rendering pandas styler objects (#3152)
Viewer
now better at working withdepends
functions (#3159)- Improve support for jinja2 loops in
ReactiveHTML
(#3236) - Add ability to require explicit load of ReactiveHTML extension (#3254)
- Improve datetime handling of sliders (#3276)
- Add support for multiple files in
FileInput.save
(#3300) - Add improved Tabs model that resolves sizing and hover issues (#3301, #3321, #3329)
- Add support to expand rows in
Tabulator
(#2762, #2837, #3010, #3163) - Implement client-side filtering on
Tabulator
(#2815, #3298) - Add
Tabulator.header_align
parameter (#2861) - Implement
Tabulator.on_edit
callbacks (#2887, #3209, #2958) - Implement DateEditor and DatetimeEditor for
Tabulator
(#2899, #3008) - Implement
Tabulator.buttons
(#3111) - Redesign
Tabulator.styles
handling (#3175) - Set default alignment for
Tabulator
(#3194) - Bidirectionally sync
Tabulator.sorters
(#3217) - Add support for setting percentage widths on
Tabulator
columns (#3239) - Add
Tabulator.on_click
callback (#3245) - Restore
Tabulator
scroll position after patch (#3273) - Enable max row limits for
Tabulator
(#3306)
- Add basic JupyterLab theme support (#2848)
- Support jupyter server
root_dir
with lab extension (#3172) - Avoid multiple extension execution in the notebook (#3266)
- Added fullpath to
jupyter_server_extension
(#3270)
- Warn users if extension is not loaded before server page is rendered (#2766)
- Sync URL location hash interactively (#2982)
- Change accent and header background color for Fast Templates (#2984)
- Add thread safety and TTL to
pn.state.as_cached
(#3198) - Add py.typed file to support mypy (#3055)
- Handle authentication errors (#3096)
- Support saving png to file-like objects (#3155)
- Check if there are any query parameters in
baseurl
and adds it tolocation.search
if possible (#3214) - Improve handling of
--index
CLI argument (#3221) - Fix event dispatch (#3231)
- Add azure oauth v2.0 endpoint support (#3224)
- Ensure
gc.collect
is not excessively called (#3259) - Added
panel.reactive
andpanel.viewable
to namespace (#3157) - Consistent handling of page title (#3290)
- Fix warnings in
ReactiveHTML
regex (#2786) - Fixed UTF-8 decoding in Terminal widget (#2880)
- Allow a
param.Selector
with no objects to be casted toAutocompleteInput
(#2966) - Update
ButtonGroup
value when changing options (#2999) - Fix
TQDM
style color reset (#3040) - Fix align-items on
Flexbox
(#3122) - Fix issue serializing
Spinner
with negative value (#3154) - Fixes for jslinking
HoloViews
components (#3165) BooleanStatus
andLoadingSpinner
now update when changing color (#3191)- Fix
Widget.from_param
when precedence is negative (#3199) - Ensure
DiscreteSlider
label is updated (#3278) - Ensure
ReactiveHTML
template variables only escapes exact matches (#3279) - Fix handling of single and empty options on
DiscreteSlider
(#3297) - Ensure
Progress
correctly initializes as indeterminate (#3307) - Always resolve DOM nodes in ReactiveHTML._scripts (#3311)
- Fixes
CrossSelector.disabled
parameter (#3326) - Fix
EditableSlider
updates when novalue_throttled
is set (#3387)
- Fix HTMLTemplateFormatter on
Tabulator
(#2781) - Fix layout of
Tabulator
with non-default theme (#3147) - Ensure
Tabulator
selection is not reset on patch (#3287) - Fix
Tabulator.download
method (#3292) - Restore ability to limit number of
selectable
rows onTabulato
(#3295) - Ensure
Tabulator
value update reports correct old value (#3308)
- Fix Fast template vertical slider CSS (#3045)
- Fix template
theme.css
(#3057) - Ensure roots are rendered into
GoldenTemplate
(#3313) - Ensure correct theme is applied to
HoloViews
pane in template (#3386)
- Added check for bool in
Location.parse_query
(#2759) - Ensure cleanup happens when enabling
--warm
or--autoreload
with Bokeh 2.4 (#2760) - Ensure autoload.js correctly determines
state.rel_path
(#2776) - Fix issue with
.app
method (#3047) - Add document argument to django.py autoload_js_script call (#3100)
- Avoid sending messages on closed or closing Websocket (#3115)
- Fix Django resource handling (#3116)
- Fix handling of
loading_max_height
(#3205) - Fix Django
DocConsumer
(#3281) - Fix
jupyter_server_config
for preview server extension (#3291) - Fix handling of
oauth_provider
argument topanel.io.server.serve
(#3293) - Allow exporting absolute paths when saving (#3305)
- Added
ToggleGroup
docs (#2679) - Adds a code of conduct (#2892)
- Add docstrings to sliders module (#3176)
- Gallery Examples for Graphviz and NetworkX (#2732)
- Add layouts + throttling sections to Performance docs (#3171)
- Adds
Plotly
styling gallery notebook (#3038) - Adds a matplotlib style guide notebook to gallery (#3036)
- Adds vega altair style example for the gallery. (#3032)
- Wrap new gallery examples into apps (#2546)
- Add docstring to panel module (#3177)
- added documentation for gcp (#3119)
- Add docs about the file size limits of the
FileInput
widget (#3044) - Add docstrings for most widgets and panes (#3352, #3353, #3354, #3359, #3365, #3366, #3367, #3369)
- Update to latest version of
Perspective
(#3318) - Update
Vega
version (#3320) - Update
ipywidgets
support for compatibility with latest bokeh (#3206, #3299) - Bump plotly.js version (#3227)
- Updates to Param 2.0 API (#2845)
- Updates for Python 3.10 deprecations (#3065)
- Update and improve
DeckGL
pane (#3158)
- Make
Param.mapping
public (#3173) - Switch
DatetimePicker
start
/end
toparam.Date
(#3202) Perspective
parameters renamed:row_pivots
->split_by
,column_pivots
->group_by
andcomputed_columns
->expressions
(#3318)
Date: 2021-03-27
The 0.12.7 release primarily fixes an incompatibility with the new jinja2 3.1.0 release. Many thanks to @maartenbreddels, @govinda18, @raybellwaves and the maintainers @maximlt and @philippjfr for contributing further fixes to this release.
Bug fixes:
- Wrong offset when memoryview format is non-byte (#3206)
- Support jupyter server root_dir with lab extension (#3172)
Docs:
- add note on enabling panel widget on Jupyter Lab (#3029)
- Remove redundant and confusing JupyterLab install instructions (#3037)
Compatibility:
- Fix jinja2 imports (#3258)
Date: 2021-12-08
The 0.12.6 release fixes a major regression introduced in the last release along with a small number of pre-existing bugs.
Regressions:
- Always load imported bokeh extensions (#2957)
- Fix regression rendering
HoloViews
plotly backend (#2961)
Bug fixes:
- Do not run
Ace
import on initialization (#2959) - Improve handling of
ReactiveHTML
cleanup (#2974, #2993) - Ensure empty
Str
has same height as non-empty (#2981) - Ensure
Tabulator
supports grouping on numeric columns (#2987) - Fix
Tabulator
with multi-index and pagination (#2989) - Allow index as column name in table widgets (#2990)
- Ensure TemplateActions component does not have height (#2997)
Date: 2021-11-23
The 0.12.5 release contains a larger number of bug fixes and minor enhancements. Many thanks to @pmav99, @samuelyeewl, @xavArtley, @L8Y, @Prashant0kgp, @t-houssian, @kristw, @jlstevens and the maintainers @maximlt, @MarcSkovMadsen and @philippjfr for their contributions to this release.
Compatibility:
- Ensure ipywidget rendering is compatible with ipykernel>6 and bokeh>2.4 (#2798)
- Build panel.js against bokeh.js 2.4.2 (#2945)
Enhancements:
- Add 'light' to list of button types (#2814, #2816)
- Make OAuth cookie expiry configurable (#2724)
- Run
onload
callbacks with--warm
option (#2844) - Improve Plotly responsive sizing behavior (#2838)
- Adds escape parameter to
DataFrame
pane to enable using html markup (#2893) - Allow to update the completions options from a parameter (#2895)
Tabs
cache dynamic contents (#2909)- Allow setting a maximum height for the loading indicator (#2910)
- Ensure loading of MathJax bundle is optional (#2919)
Bug fixes:
- Resolve issues with inline resources on save (#2794)
- Restore ability to set a maximum number of selectable rows on
Tabulator
(#2791) - Fixed bug where Tabulator with remote pagination would modify the wrong rows (#2801)
- Ensure non-exported requirejs modules do not error (#2808)
- Ensure
Tabulator
checkbox selection only happens in checkbox column (#2812) Vtkvolume
correction of dimensions order (#2818)- Allow data item to miss optional field in
Vega
pane (#2853) - Allow to set
AutoCompleteInput
in a Param pane (#2874) - Fix
Terminal
keystroke and size handling (#2878) - Fix
Tabulator
styles on scroll (#2881) - Do not sync
Indicator
properties from frontend to avoid errors (#2886) - Fix roundtrip of datetimes on
ReactiveData
components (#2888) - Fix handling of
Plotly
pane inTabs
(#2890) - Fix bokeh colorbar background for dark theme (#2897)
- Fix issues when streaming or patching
ReactiveData
(#2900) - Ensure stream and patch events do not boomerang (#2902)
- Fixes for
Card
rendering inMaterialTemplate
(#2911, #2912) - Ensure
HoloViews
matplotlib output uses tight layout (#2920) - Fix decoding of single quoted strings in url parameters (#2925)
- Fix Tabulator checkbox selection (#2931)
- Fix Vega pane sizing issues (#2933)
- Ensure toggled Accordion only triggers one event on change of active Card (#2934)
- Ensure LiteralInput JS deserializer does not insert extra spaces (#2935)
- Fix issue in detecting script data assignment in
ReactiveHTML
(#2939) - Ensure
Card
collapsible icon offset is computed robustly (#2940) - Ensure
--autoreload
does not reload panel modules (#2941) - Ensure
pn.state.curdoc
is available to async callbacks (#2942)
Documentation:
- Fix default values of panels.io.server.serve(](https://github.com/holoviz/panel/pull/)) (#2799)
- Update docs about pn.serve per user state (#2849)
- Added FastApi in the user guide for embedding apps (#2870)
- Simplify homepage (#2850)
CVEs:
- Update jQuery to remediate CVEs (#2885)
Date: 2021-09-24
The 0.12.4 release fixes a number of bugs and a regression of the autoreload feature in 0.12.2 and 0.12.3.
Compatibility:
- Fix issues with
--autoreload
caused by changes in Bokeh 2.4 (#2755)
Enhancements:
- Ensure user is warned if an extension was not loaded in time on server (#2765)
- Allow Viewer classes to be served (#2768)
- Add support for rendering
.ico
files andpathlib
objects (#2757)
Bug fixes:
- Fixed export of vtk.js module (#2562)
- Fix broken
HTMLTemplateFormatter
onTabulator
(#2730) - Fix serialization issues of Panel components on
ReactiveHTML
(#2743) - Ensure
FlexBox
behaves like a layout and makes its children discoverable (#2779) - Ensure
Plotly
plots can be updated in tabs (#2747) - Fix embedding of Panel apps in Flask (#2727)
- Ensure
Spinner
widget honors bounds when created fromParam
object (#2740) - Ensure
Tabulator
style does not disappear after resize event (#2770) - Fix
PeriodicCallback
errors (#2764) - Fix syncing of boolean types with URL parameters (#2758)
- Ensure
Tabulator.download_menu
applies kwargs to the filenameTextInput
(#2763) - Ensure
Tabulator
does not error when no Styler is defined (#2785)
Documentation:
- Fix MaterialUI custom component example (#2680)
- Fix image url in
Markdown
reference gallery example (#2734) - Add Folium thumbnail in reference gallery (#2744)
Date: 2021-09-17
The 0.12.2 release unfortunately has a compatibility issue with Bokeh 2.4 which broke the show()
method. This release fixes this regression.
- Patch Bokeh to fix show() (#2748)
Date: 2021-09-16
This a patch release with a small number of bug fixes and compatibility for bokeh 2.4. Many thanks to the contributors @Stubatiger, @maximlt, @nghenzi and the maintainers @MarcSkovMadsen and @philippjfr for the fixes in this release.
Enhancements:
- Add option to hide constant parameters on
Param
pane (#2637) - Added
on_session_destroyed
callback (#2659) - Stricter validation for linking syntax in
ReactiveHTML._template
(#2689)
Bug fixes:
- Improved thread safety (#2631)
- Ensure sessions get distinct files in
config
(#2646) - Fix bug when updating
Trend
data (#2647) - Ensure sorters are applied correctly after updating
Tabulator
value (#2639) - Correctly reflect filtered data on
Tabulator.selection
(#2676 - Unescape child literal HTML in ReactiveHTML (#2690)
- Ensure Trend indicator can be rendered in layout (#2694)
Documentation:
Compatibility:
Date: 2021-08-10
This is a patch release with a small number of fixes following the 0.12.0 release. Many thanks to the maintainers @MarcSkovMadsen and @philippjfr for the fixes in this release.
Enhancements:
- Bundle .map files during build to allow source mapping (#2591)
- Various style improvements for Fast templates (#2604, #2609, #2611, #2615)
- Implement hierarchical aggregation for
Tabulator
(#2624)
Bug fixes:
- Fix logo on Fast templates (#2184)
- Fix height responsiveness of Folium pane (#2231)
- Fix bug updating
Tqdm
indicator (#2554) - Ensure
--autoreload
doesn't error on cleaned up session (#2570) - Don't use persisted layout if
save_layout=False
(#2579) - Pin version of tqdm with asyncio support (#2595)
- Reset layout when resetting grid template layout (#2576)
- Fix line-height issues in Fast templates (#2600)
- Clean up sessions after warmup and ensure periodic callbacks are cleaned up (#2601)
Documentation:
- Enable JupyterLab preview button on binder (#2545)
- Update theme toggle documentation for Fast templates (#2560)
- Update Fast template documentation and enable full screen (#2577)
- Fix binder links on website (#2590)
- Add docs about loading the ipywidgets extension (#2594)
Date: 2021-07-18
Blog post: https://blog.holoviz.org/panel_0.12.0.html
The 0.12.0 release is a minor release with a lot of exciting and a huge amount of bug fixes. We are very excited about the growing community and the many contributions we received. In particular we would like to thank @douglas-raillard-arm, @mathrick, @jlstevens, @hyamanieu, @Liam-Deacon, @Stubatiger, @ablythed, @syamajala, @Hoxbro, @jbednar, @brl0, @OBITORASU, @fleming79, dhruvbalwada and @rmorshea for contributing various fixes and improvements and the core developers @xavArtley, @MarcSkovMadsen and @philippjfr for continuing to push the development of Panel.
Features:
- Add
ReactiveHTML
(#1894, #2091, #2092, #2098, #2115, #2210, #2287, #2290, #2332, #2345, #2372, #2373, #2374, #2383, #2384, #2393, #2397, #2399, #2400, [#2401 #2402, #2404, #2533, #2535) - Add
Terminal
Widget based on xterm.js (#2090) - Adding a
DatetimePicker
widget (#2107, #2135) - Add editable sliders (#2111, #2133, #2208)
- Add
FlexBox
layout (#2233, #2511) - Add ability to configure global template (#2271)
- Add
GridStack
layout (#2375) - Add
PDF
pane (#2444) - Add
/panel-preview
endpoint for Jupyter server extension (#2341, #2361) - Add
Tqdm
Indicator (#2079)
Enhancements:
- Add empty
Progress
bar (#2088) - Optimize initialization of templates (#2096)
- Serialize
Perspective
schema (#2130) - Updated
JSON
pane to accept single quote and wrap properly (#2143, #2443) - Improvements for
Perspective
(#2153) - Improve handling of server prefix and proxied deployment scenarios (#2159, #2162)
- Add support for setting bokeh theme (#2164, #2166, #2170)
- Completely overhauled the default index template (#2198, #2340)
- Enhancements for
Template
modals (#2269, #2523) - Make the Template sidebar width configurable (#2301)
- Improve look and feel and styling of Fast templates (#2303, #2469, #2484, #2488)
- Allow setting kwargs in
Reactive.controls
(#2304) - Add global configuration variable to always throttle sliders (#2306)
- Add support for controlling text alignment in
DataFrame
andTabulator
(#2331) - Add
Tabulator
theme for Fast Templates (#2425) - Add ability to make only certain
Tabulator
rows selectable (#2433) - Add
visible
parameter to all components (#2440) - Send
Plotly
restyle and relayout events rather than full updates (#2445) - Add
push_notebook
helper function for syncing bokeh property changes in notebooks (#2447) - Improve visual styling of
Card
(#2343, #2348, #2376, #2437, #2527) - Ensure
config
variables are configured per user session (#2358, #2455, #2481) - Add
save_layout
andprevent_collision
toReactTemplate
andFastGridTemplate
(#2296, #2357) - Add ability to declare root application from
panel serve
(#2392) - Support jslinking Parameterized class (#2441)
- Improve
config.sizing_mode
behavior (#2442) - Add separate
RangeSlider
value_start
andvalue_end
parameters (#2457, #2468) - Allow saving Templates (#2461)
- Bundle
Tabulator
resources to allow usage in airgapped environment (#2471) - Ensure
Trend
indicator title wraps (#2483) - Scroll on
Tabulator
selection (#2503) - Increase notebook resource load timeout (#2515)
- Auto-detect VSCode and Colab comms (#2536)
- Add tooltip to
Tabulator
cells to see unformatted value (#2543)
Bug fixes:
- Fix missing video in
Video
(#2109) - use idom.config to set dist dir (#2117)
- Remove bootstrap CSS from
FastGridTemplate
(#2123) - Fix issues with
Ace
z-index (#2126) - Fix updating of
Tabulator
selection property (#2128) - Ensure changes on ReactiveData source are scheduled correctly (#2134)
- Fixed
Player
looping when start is 0 (#2141) - Fix divide by zero issues on Trend indicator (#2148)
- Ensure
GridSpec
override handles duplicate matches (#2150) - Fix for
loading
parameter widget linking (#2160) - Fix
Tabulator
ajax call on empty data (#2161) - Fix
Tabulator
sorting and data initialization (#2163) - Fix editing
Tabulator
with filters applied (#2165) - Fix theming on
HoloViews
plot updates (#2209) - Fixed data handling on
Perspective
pane (#2212) - Improve template and resource management for png export (#2221)
- Improve and standardize selection behavior of
Tabulator
(#2230) - Ensure JS changes to
Plotly
pane are applied if not explicitly triggered (#2251) - Fix server-side Tabulator selection changes (#2252)
- Fix update of
Param
subobjects (#2255) - Add support for
vtkCornerAnnotations
(#2257) - Improve request handling for remote pagination on
Tabulator
(#2265) - Allow setting
Param
precedence to None (#2266) - Disable nested field separators on
Tabulator
(#2289) - Fix errors when applying
Perspective
filters (#2300, #2521) - Ensure
Param
pane handles changes to unknown parameter (#2346) - Fix issues with local
Audio
andVideo
(#2380) - Ensure
ReactiveData
emits correct old data in event (#2398) - Ensure
Plotly
interactivity works whenPlotly
panes are displayed in tabs (#2418, #2463) - Fix
Ace
widget disabled parameter (#2449) - Ensure external resources are configured correctly on save (#2452)
- Ensure table formatters and editors are copied on render to avoid bokeh errors (#2453)
- Allow unicode auth response body (#2462)
- Workaround TypeError for non-string json keys on
Plotly
pane (#2465) - Fix issue with throttled updates on Param (#2470)
- Ensure
Tabulator
style is applied while streaming (#2478) - Fix issues setting resources on save (#2492)
- Fix
VideoStream
unpause (#2508) - Ensure
DataFrame
andTabulator
widget data can be updated in callback (#2510) - Fix chaining of
bind
functions (#2513) - Fix broken serialisation when syncing url parameters (#2520)
- Fix
Perspective
for string types (#2525) - Fix race condition in
--autoreload
(#2539)
Documentation:
- Update
Server_Deployment.ipynb
(#2118) - Expand description of
watch=True
inParam.ipynb
(#2120) - Switch to PyData Sphinx Theme (#2139)
- Replace altair iris example with penguins (#2213)
- Enable Binder (#2198)
- Updates and fixes for Developer Guide (#2381)
- Fixed
Tabs
documentation (#2448) - Added basic description and example of the
Tabulator.configuration
parameter (#2412) - Add parameters to
Plotly
reference guide (#2385) - Add useful links to developer docs (#2319)
- Add documentation about parameterized components (#2454)
- Demonstrate how to lazily load tabs (#2479)
Compatibility:
Deprecations:
- Remove add_periodic_callback method (#2439)
- Remove deprecated panel.callbacks modules
- Remove deprecated Ace pane and Audio Widget (#2427)
- Remove Progress widget docs (#2451)
- Tabulator no longer loaded by default, must be initialized with
pn.extension('tabulator'](https://github.com/holoviz/panel/issues/))
(#2364)
Date: 2021-04-14
The 0.11.3 release is another micro-release in the 0.11 series primarily focused on updating the documentation theme and a regression in loading Tabulator
data.
Bug fixes:
- Fix
Tabulator
sorting and data initialization (#2163) - Improved handling of
IDOM
build directory (#2168)
Documentation:
- Switch to PyData Sphinx Theme (#2139)
Date: 2021-04-08
The 0.11.2 release is a micro-release fixing a number of smaller bugs. Many thanks to @Hoxbro, @dhruvbalwada, @rmorshea, @MarcSkovMadsen, @fleming79, @OBITURASU and @philippjfr for their contributions to this release.
Enhancements:
- Optimize adding of roots to templates to avoid multiple preprocessing cycles (#2096)
- Use schema to support date(time) dtypes on
Perspective
(#2130)
Bug fixes:
- Fix regression on
Video
pane causing video not to be rendered at all (#2109) - Fix missing closing tag in Fast templates (#2121)
- Remove bootstrap CSS from
FastGridTemplate
(#2123) - Ensure
Tabulator
selection can be set from Python (#2128) - Ensure changes on ReactiveData objects are scheduled correctly on server (#2134)
- Fix for
Player
widget when start value is 0 (#2141) - Support single quotes on JSON pane (#2143)
- Fix divide by zero issues when value_change is computed from zero baseline (#2148)
- Ensure
GridSpec
handles overrides across multiple cells (#2150) - Fix for
loading
parameter widget linking (#2160) - Use relative URLs for resource loading to ensure proxied apps work (#2159)
- Fix
Tabulator
ajax call on empty data (#2161)
Documentation:
- Fix typo in Binder section of server deployment documentation (#2118)
- Improve documentation surrounding watch=True in Param user guide (#2120)
Compatibility:
Date: 2021-03-15
The 0.11.1 release is a micro-release addressing a number of smaller bugs in the last release. Many thanks to the contributors to this release including @Hoxbro, @xavArtley, @Jacob-Barhak and @philippjfr.
Enhancements:
- Allow setting horizontal and vertical alignment separately (#2072)
- Expose widgets
visible
property (#2065) - Allow bind to extract dependencies and evaluate other dynamic functions (#2056)
- Allow setting
root_directory
onFileSelector
widget ([#2086](holoviz#2086
Bug fixes:
- Fixed loading of jQuery in
BootstrapTemplate
(#2057) - Fix VTK imports to ensure
VTKVolume
pane renders grids (#2071) - Fix loading of template resources from relative paths (#2067)
- Fix
Spinner
component overflow (#2070) - Handle integer column names on
Perspective
widget (#2069) - Fix bundling of template resources (#2076)
- Fix
value_throttled
inpn.depends
decorator (#2085)
Compatibility:
- Switch GitHub OAuth to use header authorization token (#2073)
Date: 2021-03-01
The 0.11.0 release brings a number of exciting new features to Panel as well as some enhancements and bug fixes. This release is also required for Bokeh 2.3 compatibility since a lot of changes to the Bokeh property system required updates. Many thanks to the many contributors to this release including @MarcSkovMadsen, @xavArtley, @hyamanieu, @cloud-rocket, @kcpevey, @kaseyrussell, @miliante, @AjayThorve and @philippjfr.
Major features:
- A
Perspective
pane based on the FINOS Perspective library (#2034) - Implement
--autoreload
functionality for the Panel server (#1983) - Add
--warm
option to panel serve, useful for pre-loading items into the state cache (#1971) - Add ability to define JS modules and Template specific resources (#1967)
panel.serve
now supports serving static files and Bokeh apps, not just Panel apps (#1939)- Add a
TrendIndicator
for conveniently showing history and value of a numeric quantity (#1895) - Add
TextToSpeech
widget (#1878) - Add
SpeechToText
widget (#1880) - Add
loading
parameter and spinners to all components (#1730, #2026) - Add
IDOM
pane to develop interactive HTML components in Python (#2004) - Add powerful new
Tabulator
widget for flexible and configurable display of tabular data (#1531, #1887)
Enhancements:
- Add watch argument to
bind
function so that covers all the features of pn.depends (#2000) - Add
format
parameter to DatetimeRangeInput widget (#2043) - Allow
ParamMethod
andParamFunction
to evaluate lazily (#1966) - Add
value_input
parameter to TextInput widgets (#2007) - Implement
Glyph3dMapper
support forVTK
panes (#2002, #2003) - Add Jupyter server extension to serve resources (#1982)
- Enhancements for
DarkTheme
(#1964) - Add
refresh
functionality toFileSelector
(#1962) - Add support for Auth0 authentication (#1934)
- Avoid recursive preprocessing slowing down rendering (#1852)
- Add support for per-layer tooltips on
DeckGL
pane (#1846) - Add
Viewer
baseclass for custom user components (#2045)
Bug fixes:
- Fixed
FileSelector
file icon on selected files (#2046) - Drop query args when checking URLs (#2037)
- Fix
Card.header_background
propagation (#2035) - Disable
GoldenTemplate
sidebar when empty (#2017) - Ensure
Card.collapsed
andAccordion.active
parameters are synced (#2009) - Fix inline resources when saving (#1956)
- Switch
Param
pane widget type when bounds (un)defined (#1953)
Compatibility:
- Compatibility with Bokeh>=2.3 (#1948, #1988, #1991)
- Updated
ECharts
pane to 5.0.2 of JS library (#2016)
Documentation:
- Document pn.bind in API user guide (#1973)
Date: 2021-01-18
Another micro-release in the 0.10.x series focusing primarily on bug and regression fixes. Many thanks to @miliante, @MarcSkovMadsen, @Hoxbro, @jlstevens, @jbednar and @philippjfr.
Bug fixes:
- Fix inverted axes on HoloViews plots (#1732)
- Fix enabling/disabling of FileDownload widget (#1510, #1820)
- Fix issues serving template resources on server with route prefix (#1821)
- Fixes for rendering ECharts from pyecharts (#1874, #1876)
- Fix issues with scroll behavior when expanding/collapsing Card/Accordion (#1833, #1884)
- Ensure DiscreSlider label is correctly linked to value (#1906)
- Fix support for setting header_color and header_background on all templates (#1872)
- Ensure that Template preprocessors are applied during initialization (#1922)
Enhancements:
- Support throttled in Param widget (#1800)
- Support rendering of hvPlot Interactive objects (#1824)
- Allow recording session launch time in server session_info (#1909)
- Add Button.value parameter (#1910)
- Support upload of multiple parameters on FileInput (#1911)
- Improve support for DarkTheme in templates (#1855, #1856)
Documentation:
- Fixed IntSlider and FloatSlider example (#1825)
- Updated instructions for using Panel in JupyterLab (#1908)
Date: 2020-11-13
This is another micro-release primarily fixing various minor bugs in functionality introduced as part of the 0.10.0 release. Many thanks to @MarcSkovMadsen, @ahuang11, @xavArtley, @Hoxbro, @jbednar and @philippjfr.
Bug fixes:
- Fix various issues with Template CSS (#1663, #1742)
- Fix BytesIO/StringIO buffers as input to image panes (#1711)
- Fix out-of-bounds errors when assigning to
GridSpec
with fixed ncols (#1721) - Fix deserialization issues for
Plotly.hover_data
(#1722) - Fixed updating of
Alert
parameters after initialization (#1725) - Fix ordering of items added to Template areas (#1736)
- Fix interactivity for items in Card (#1750)
- Ensure onload callbacks are only run once (#1746)
- Allow overriding items in grid based templates (#1741)
- Ensure
ECharts
andipywidget
rerender when inCard
(#1765) - Ensure template dark theme persists on HoloViews plots (#1764)
- Fix responsive height in Plotly pane (#1770)
- Ensure image panes resize in width and height (#1777)
- Fix issues with Location.sync serialization (#1784)
- Add throttled argument to interact (#1259)
- ECharts pane now loads echarts-gl for 3D support (#1785)
Enhancements:
Date: 2020-10-27
This is a micro release of Paanel primarily containing bug fixes following the 0.10.0 release. Many thanks to @MarcSkovMadsen, @jbednar and @philippjfr for contributing fixes to this release.
Enhancements:
- Add pn.bind function to bind parameters to a function (#1629)
Bug fixes:
- Fix
WidgetBox
CSS (#855) - Fix CSS load order in Templates (#1698)
- Allow setting
DiscreteSlider
orientation (#1683) - Ensure JS callbacks and links are only set up once on templates (#1700)
- Initialize pipeline only once (#1705)
- Allow using
NumberInput
asParam
pane widget (#1708)
Date: 2020-10-23
This is a minor but jam-packed release of Panel, with a slew of new features and enhancements, plus a wide array of minor fixes and improvements to the documentation, and website. Many thanks to the people who contributed to this release, including @philippjfr, @MarkSkovMadsen (alert pane, templates, docs), @xavArtley (VTK improvements, templates, input/spinner widgets), @maximlt (panel serve), @jbednar (docs, reviewing), @kebowen (templates), @ahuang11 (datepicker), @nghenzi (react template, bugfixes), @nritsche (panel serve), @ltalirz (autocomplete input), @BoBednar (docs), @tmikolajczyk, @halilbay, @Hoxbro, and @ceball (testing and automation).
Features:
- Add
Card
andAccordion
layout (#1262, #1266, #1267, #1616, #1619) - Location component (#1150, #1297, #1357, #1407, #1498, #1519, #1532, #1638, #1658)
- VTK improvements: colorbars (#1270), synchronization (#1248, #1637), orientation widget (#1635), volume controller (#1631), serialization (#1596), follower (#1451)
- Add default templates (#1277, #1374, #1419, #1421, #1459, #1472, #1473, #1479, #1530, #1535, #1608, #1617, #1645, #1647, #1650, #1660, #1661, #1662, #1677, #1682, #1685, #1687)
- Improvements for ipywidgets support (#1285, #1389, #1476, #1675)
- Add
pn.state.busy
andpn.state.onload
callback (#1392, #1518) - Add support for serving static files (#1319, #1492)
- Add an
Alert
pane (#1181, #1422) - Add ability to declare OAuth provider (#820, #1468, #1470, #1474, #1475, #1480, #1508, #1594, #1625)
- Add
ECharts
pane (#1484, #1691) - Add busy/loading indicators and enable on Template (#1493)
- Allow serving REST APIs as part of panel serve (#1164)
- Add
pn.state.as_cached
function (#1526) - Add MenuButton widget (#1533)
- Add a number of
ValueIndicators
(#1528, #1590, #1627, #1628, #1633) - Add support for
param.Event
(#1600) - Add
IntInput
andFloatInput
widgets (#1513) - Record session statistics on
pn.state.session_info
(#1615, #1620, #1634) - Bundle external JS dependencies for custom models and templates (#1651, #1655)
- Add support for ipympl (interactive mode) on Matplotlib (#1469)
Enhancements:
- Allow defining explicit embed states (#1274)
- Implement
__add__
and__iadd__
on layouts (#1282) - Add support for hierarchical multi-indexed DataFrame (#1383)
- Add
show_index
option toDataFrame
widget (#1488) - Link widgets with same name during embed (#1543)
- Wait until JS dependency is loaded before rendering (#1577)
- For
AutocompleteInput
, allow user-defined values (#1588) and case-insensitivity (#1548) - Allow dates to be disabled in DatePicker (#1524)
- Enable new features for a Bokeh DataTable (#1512)
- Panel serve improvements: MethodType parameter (#1450), title per app (#1354)
- Server deployment guide for Azure (#1350)
- Add Widget.from_param classmethod (#1344)
- More options for ACE widget (#1391)
Bugfixes and minor improvements:
- VTK model compilation (#1669), findPokedRenderer (#1456), misc (#1406, #1409)
- Fix parameterized parameter handling (#1584)
- Theming improvements (#1670)
- JS dependency handling (#1626)
- Parameterized: explicit triggering (#1623), strings with None default (#1622)
- Docs and examples (#1242, #1435, #1448, #1467, #1540, #1541, #1558, #1570, #1576, #1609)
- Many other minor fixes and improvements (#1284, #1384, #1423, #1489, #1495, #1502, #1503, #1507, #1520, #1521, #1536, #1539, #1546, #1547, #1553, #1562, #1595, #1621, #1639)
Backwards compatibility:
- Switch away from inline resources in notebook (#1538, #1678)
Viewable.add_periodic_callback
is deprecated; use pn.state.add_periodic_callback (#1542)- Use
widget_type
instead oftype
to override Param widget type in Param pane (#1614) Spinner
widget is now calledNumberInput
(#1513)
The 0.9.6 release unfortunately caused a major regression in layout performance due to the way optimizations in Bokeh and Panel interacted. This release fixes this regression.
- Fix regression in layout performance (#1453)
This is a minor bug fix release primarily for compatibility with Bokeh versions >=2.1.0 along with a variety of important bug fixes. Many thanks for the many people who contributed to this release including @mattpap, @kebowen730, @xavArtley, @maximlt, @jbednar, @mycarta, @basnijholt, @jbednar and @philippjfr.
- Compatibility with Bokeh 2.1 (#1424, #1428)
- Fixes for
FileDownload
widget handling of callbacks (#1246, #1306) - Improvements and fixes for Param pane widget mapping (#1301, #1342, #1378)
- Fixed bugs handling of closed Tabs (#1337)
- Fix bug in layout
clone
method (#1349) - Improvements for
Player
widget (#1353, #1360) - Fix for
jslink
on Bokeh models (#1358) - Fix for rendering geometries in
Vega
pane (#1359) - Fix issue with
HoloViews
pane overriding selected renderer (#1429) - Fix issues with
JSON
pane depth parameter and rerendering (#1431) - Fixed
param.Date
andparam.CalenderDate
parameter mappings (#1433, #1434) - Fixed issue with enabling
num_procs
onpn.serve
(#1436) - Warn if a particular extension could not be loaded (#1437)
- Fix issues with garbage collection and potential memory leaks (#1407)
- Support recent versions of pydeck in
DeckGL
pane (#1443) - Ensure JS callbacks on widget created from Parameters are initialized (#1439)
Date: 2019-04-04
This release primarily focused on improvements and additions to the documentation. Many thanks to @MarcSkovMadsen, @philippjfr and @michaelaye for contributing to this release.
Enhancements:
- Add
Template.save
with ability to save to HTML and PNG but not embed (#1224)
Bug fixes:
- Fixed formatting of datetimes in
DataFrame
widget (#1221) - Add
panel/models/vtk/
subpackage to MANIFEST to ensure it is shipped with packages
Documentation:
- Add guidance about developing custom models (#1220)
- Add Folium example to gallery (#1189)
- Add
FileDownload
andFileInput
example to gallery (#1193)
Date: 2020-04-02
This is a minor release fixing a number of regressions and compatibility issues which continue to crop up due to the upgrade to Bokeh 2.0 Additionally this release completely overhauls how communication in notebook environments are handled, eliminating the need to register custom callbacks with inlined JS callbacks to sync properties. Many thanks to the contributors to this release including @hyamanieu, @maximlt, @mattpap and the maintainer @philippjfr.
Enhancements:
- Switch to using CommManager in notebook hugely simplifying comms in notebooks and reducing the amount of inlined Javascript (#1171)
- Add ability to serve Flask apps directly using pn.serve (#1215)
Bug fixes:
- Fix bug in Template which caused all roots to instantiate two models for each component (#1216)
- Fixed bug with Bokeh 2.0 DataPicker datetime format (#1187)
- Publish Panel.js to CDN to allow static HTML exports with CDN resources to work (#1190)
- Handle bug in rendering Vega models with singular dataset (#1201)
- Removed escaping workaround for HTML models resulting in broken static exports (#1206)
- Fixed bug closing Tabs (#1208)
- Embed Panel logo in server index.html (#1209)
Compatibility:
- This release adds compatibility with Bokeh 2.0.1 which caused a regression in loading custom models
Date: 2019-03-21
This is a minor release fixing an issue with recent versions of Tornado. It also fixes issue with the packages built on the PyViz conda channel.
- Respect write-locks on synchronous Websocket events (#1170](holoviz#1170))
Date: 2019-03-21
This is a minor release with a number of bug fixes. Many thanks to @ceball, @Guillemdb and @philippjfr for contributing these fixes.
Bug fixes:
- Fix regression in DiscreteSlider layout (#1163](holoviz#1164))
- Fix for saving as PNG which regressed due to changes in bokeh 2.0 (#1165](holoviz#1165))
- Allow pn.serve to resolve Template instances returned by a function (#1167](holoviz#1167))
- Ensure Template can render empty HoloViews pane (#1168](holoviz#1168))
Date: 2019-03-19
This is very minor releases fixing small regressions in the 0.9.0 release:
Bug fixes:
- Fix issue with
Button
label not being applied (#1152](holoviz#1152)) - Pin pyviz_comms 0.7.4 to avoid issues with undefined vars (#1153](holoviz#1153))
Date: 2019-03-13
This is a major release primarily for compatibility with the recent Bokeh 2.0 release. Additionally this release has a small number of features and bug fixes:
Features:
- Added a
MultiChoice
widget (#1140](holoviz#1140)) - Add
FileDownload
widget (#915, #1146](holoviz#1146)) - Add ability to define
Slider
format option (#1142](holoviz#1142)) - Expose
pn.state.cookies
andpn.state.headers
to allow accessing HTTP headers and requests from inside an app (#1143)
Bug fixes:
- Ensure
DiscreteSlider
respects layout options (#1144](holoviz#1144))
Removals:
- Slider no longer support
callback_policy
andcallback_throttle
as they have been replaced by thevalue_throttled
property in bokeh
Date: 2019-03-11
This release is a minor release with a number of bug fixes and minor enhancements. Many thanks to the community of contributors including @bstadlbauer, @ltalirz @ceball and @gmoutsofor submitting the fixes and the maintainers, including @xavArtley, @jbednar and @philippjfr, for continued development.
Minor enhancements:
- Added verbose option to display server address (#1098](holoviz#1098)) [@philippjfr]
Bug fixes:
- Fix PNG export due to issue with PhantomJS (#1081](holoviz#1081), #1092](holoviz#1092)) [@bstadlbauer, @philippjfr]
- Fix for threaded server (#1090](holoviz#1090)) [@xavArtley]
- Ensure Plotly Pane does not perform rerender on each property change (#1109](holoviz#1109)) [@philippjfr]
- Fix issues with jslink and other callbacks in Template (#1135](holoviz#1135)) [@philippjfr]
- Various fixes for VTK pane (#1123](holoviz#1123)) [@xavArtley]
- Fixes for .show keyword arguments (#1073](holoviz#1073), #1106](holoviz#1106)) [@gmoutso]
Date: 2019-01-31
This release focuses primarily on solidifying existing functionality, significantly improving performance and fixing a number of important bugs. Additionally this release contains exciting new functionality, including several new components. We want to thank the many contributors to this release (a full list is provided at the bottom), particularly @MarcSkovMadsen (the author of awesome-panel.org) and @xavArtley, who has been hard at work at improving VTK support. We also want to thank the remaining contributors including @philippjfr, @ceball, @jbednar, @jlstevens, @Italirz, @mattpap, @Jacob-Barhak, @stefjunod and @kgullikson88. This release required only minimal changes in existing APIs and added a small number of new ones, reflecting the fact that Panel is now relatively stable and is progressing steadily towards a 1.0 release.
- Added new
DeckGL
pane (#1019, #1027) - Major improvements to support for JS linking (#1007)
- Huge performance improvements when nesting a lot of components deeply (#867, #888, #895, #988)
- Add support for displaying callback errors and print output in the notebook simplifying debugging (#977)
- Add support for dynamically populating
Tabs
(#995) - Added
FileSelector
widget to browse the servers file system and select files (#909) - Add
pn.serve
function to serve multiple apps at once on the same serve (#963) - Add a
JSON
pane to display json data in a tree format (#953)
- Updated Parameter mappings (#999)
- Ensure that closed tabs update
Tabs.objects
(#973) - Fixed HoloViews axis linking across
Template
roots (#980) - Merge FactorRange when linking HoloViews axes (#968)
- Expose title and other kwargs on
.show()
(#962) - Let
FileInput
widget set filename (#956 - Expose further bokeh CLI commands and added help (#951)
- Enable responsive sizing for
Vega
/altair pane (#949) - Added encode parameter to
SVG
pane (#913) - Improve
Markdown
handling including syntax highlighting and indentation (#881) - Add ability to define Template variables (#815)
- Allow configuring responsive behavior globally (#851)
- Ensure that changes applied in callbacks are reflected on the frontend immediately (#857)
- Add ability to add axes coordinates to
VTK
view (#817) - Add config option for
safe_embed
which ensures all state is recorded (#1040) - Implemented
__signature__
for tab completion (#1029)
- Fixed
DataFrame
widget selection parameter (#989) - Fixes for rendering long strings on Windows systems (#986)
- Ensure that panel does not modify user objects (#967)
- Fix multi-level expand
Param
subobject (#965) - Ensure
load_notebook
is executed only once (#1000) - Fixed bug updating
StaticText
on server (#964) - Do not link
HoloViews
axes with different types (#937) - Ensure that integer sliders are actually integers (#876)
- Ensure that
GridBox
contents maintain size (#971)
- Compatibility for new Param API (#992, #998)
- Changes for compatibility with Vega5 and altair 4 (#873, #889, #892, #927, #933)
- The Ace pane has been deprecated in favor of the Ace widget (#908)
- Updated Django multiple app example and user guide (#928) [@stefjunod]
- Clarify developer installation instructions, and fix up some metadata. (#952, #978)
- Added
Param
reference notebook (#944) - Added
Divider
reference notebook
Date: 2019-11-18T21:22:16Z
This major release includes significant new functionality along with important bug and documentation fixes, including contributions from @philippjfr (maintainer and lead developer), @xavArtley (VTK support), @jbednar (docs), @DancingQuanta (FileInput), @a-recknagel (Python 3.8 support, misc), @julwin (TextAreaInput, PasswordInput), @rs2 (example notebooks), @xtaje (default values), @Karamya (Audio widget), @ceball, @ahuang11 , @eddienko, @Jacob-Barhak, @jlstevens, @jsignell, @kleavor, @lsetiawan, @mattpap, @maxibor, and @RedBeardCode.
Major enhancements:
- Added pn.ipywidget() function for using panels and panes as ipwidgets, e.g. in voila (#745, #755, #771)
- Greatly expanded and improved Pipeline, which now allows branching graphs (#712, #735, #737, #770)
- Added streaming helper objects, including for the streamz package (#767, #769)
- Added VTK gallery example and other VTK enhancements (#605, #606, #715, #729)
- Add GridBox layout (#608, #761, #763)
- New widgets and panes:
Other enhancements:
- Make Row/Column scrollable (#760)
- Support file-like objects (not just paths) for images (#686)
- Added isdatetime utility (#687)
- Added repr, kill_all_servers, and cache to pn.state (#697,#776)
- Added Slider value_throttled parameter (#777)
- Extended existing widgets and panes:
- WidgetBox can be disabled programmatically (#532)
- Templates can now render inside a notebook cell (#666)
- Added jscallback method to Viewable objects (#665)
- Added min_characters parameter to AutocompleteInput (#721)
- Added accept parameter to FileInput (#602)
- Added definition_order parameter to CrossSelector (#570)
- Misc widget fixes and improvements (#703, #717, #724, #762, #775](holoviz#775))
Bug fixes and minor improvements:
- Removed mutable default args (#692, #694)
- Improved tests (#691, #699, #700)
- Improved fancy layout for scrubber (#571)
- Improved plotly datetime handling (#688, #698)
- Improved JSON embedding (#589)
- Misc fixes and improvements (#626, #631, #645, #662, #681, #689, #695, #723, #725, #738, #743, #744, #748, #749, #758, #768, #772, #774, #775](holoviz#775), #779, #784, #785, #787, #788, #789)
- Prepare support for python 3.8 (#702)
Documentation:
- Expanded and updated FAQ (#750, #765)
- Add Comparisons section (#643)
- Docs fixes and improvements (#635, #670, #705, #708, #709, #740, #747, #752)
Date: 2019-08-08T15:13:31Z
Minor bugfix release patching issues with 0.6.1, primarily in the CI setup. Also removed the not-yet-supported definition_order parameter of pn.CrossSelector.
Date: 2019-10-08T17:41:51Z
This release includes a number of important bug fixes along with some minor enhancements, including contributions from @philippjfr, @jsignell, @ahuang11, @jonmmease, and @hoseppan.
Enhancements:
- Allow pn.depends and pn.interact to accept widgets and update their output when widget values change (#639)
- Add fancy_layout option to HoloViews pane (#543)
- Allow not embedding local files (e.g. images) when exporting to HTML (#625)
Bug fixes and minor improvements:
- Restore logging messages that were being suppressed by the distributed package (#682)
- HoloViews fixes and improvements (#595, #599, #601, #659)
- Misc other bug fixes and improvements (#575, #588, #649, #654, #657, #660, #667, #677)
Documentation:
- Added example of opening a URL from jslink (#607)
Date: 2019-09-19T10:28:36Z
This release saw a number of important bug and documentation fixes along with some minor enhancements.
Enhancements:
- Added support for embedding Player widget (#584)
- Add support for linking HoloViews plot axes across panels (#586)
- Allow saving to BytesIO buffer (#596)
- Allow
PeriodicCallback.period
to be updated dynamically (#609)
Bug fixes:
- While hooks are applied to model no events are sent to frontend (#585)
- Various fixes for embedding and rendering (#594)
Documentation:
- New example of periodic callbacks (#573)
- Improve
panel serve
documentation (#611, #614) - Add server deployment guide (#642)
Date: 2019-08-01T14:54:20Z
Date: 2019-06-02T17:56:26Z
Date: 2019-04-11T16:52:06Z
Minor release closely following up on 0.5.0 updating version requirements to include the officially released bokeh 1.1.0. This release also includes contributions from @philippjfr (with fixes for pipeline and embed features), @xavArtley (addition of a new widget) and @banesullivan (fixes for VTK support).
Features:
- Addition of
Spinner
widget for numeric inputs (#368)
Bugfixes:
- Skip jslinked widgets when using embed (#376)
- Correctly revert changes to pipelines when stage transitions fail (#375)
- Fixed bug handling scalar arrays in VTK pane (#372)
Date: 2019-04-04T00:42:59Z
Major new release, greatly improving usability and capabilities. Includes contributions from @philippjfr (docs, better layouts, and many other features), @xavArtley (VTK support, Ace code editor), @banesullivan (VTK support), @jbednar and @rtmatx (docs), @jsignell (docs, infrastructure, interact support), and @jlstevens (labels for parameters).
Major new features:
- Now uses Bokeh 1.1's greatly improved layout system, requiring far fewer manual adjustments to spacing (#32)
- Greatly expanded docs, now with galleries (#241, #251, #265, #281, #318, #332, #347, #340)
- Allow embedding app state, to support static HTML export of panels (#250)
- Added new GridSpec layout type, making it simpler to make grid-based dashboards (#338)
- Added VTK 3D object pane (#312, #337, #349, #355, #363)
- Added Ace code editor pane (#359)
- Allow defining external JS and CSS resources via config, making it easier to extend Panel (#330)
- Add HTML model capable of executing JS code, allowing more complex embedded items (#326)
- Add a KaTeX and MathJax based LaTeX pane, replacing the previous limited matplotlib/PNG-based support (#311)
Other new features:
- Allow passing Parameter instances to Param pane, making it much simpler to work with individual parameters (#303)
- Added parameter for widget alignment (#367)
- Allow specifying initial value when specifying min/max/step for interact (#334)
- Add support for param.Number step (#365)
- Add a PeriodicCallback (#348)
- Expose curdoc and session_context when using serve (#336)
- Add support for saving and loading embedded data from JSON (#301)
- Add support for specifying arbitrary
label
for Parameters (#290) - Add ColorPicker widget (#267)
- Add support for interact title (#266)
Bugfixes and minor improvements:
- Combine HTML and JS in MIME bundle to improve browser compatibility (#327)
- Inlined subobject expand toggle button (#329)
- Use Select widget for ObjectSelector consistently to avoid issues with short lists and numeric lists (#362)
- Various small improvements (#238, #245, #257, #258, #259, #262, #264, #276, #289, #293, #307, #313, #343, #331)
- Various bugfixes (#247, #261, #263, #282, #288, #291, #297, #295, #305, #309, #322, #328, #341, #345, #354, #364)
Changes potentially affecting backwards compatibility:
- Refactored io subpackage (#315)
- Moved panes and widgets into subpackage (#283)
- Cleaned up wdiget, deploy, and export APIs (#268, #269)
- Renamed pane precedence to priority to avoid confusion with Param precedence (#235)
Date: 2018-12-05T22:49:23Z
Minor release fixing packaging issues.
Date: 2018-12-05T00:47:25Z
Thanks to @mhc03 for bugfixes.
New features and enhancements
- New app: Euler's Method (#161)
- New widgets and panes: Player (#110), DiscretePlayer (#171), CrossSelector (#153)
- Spinner (spinner.gif)
- Compositional string reprs (#129)
- Add Param.widgets parameter to override default widgets (#172)
- Pipeline improvements (#145, etc.)
- Additional entry points for user commands (#176)
- Support calling from anaconda-project (#133)
- Improved docs
Bugfixes:
- Fix example packaging (#177)
- Various bugfixes and compatibility improvements (#126, #128, #132, #136, #141, #142, #150, #151, #154, etc.)
Compatibility changes
- Renamed Param expand options (#127)
Date: 2019-01-28T18:02:57Z
Thanks to @xavArtley for several contributions, and to @lebedov for bugfixes.
New features:
- Now Python2 compatible (#225)
- Audio player widget (#215,#221)
- FileInput widget (#207)
- General support for linking Panel objects, even in static exports (#199)
- New user-guide notebooks: Introduction (#178), Links (#195).
Enhancements:
Bug fixes:
Date: 2018-10-23T12:09:07Z
Date: 2021-07-18
Blog post: https://blog.holoviz.org/panel_0.12.0.html
The 0.12.0 release is a minor release with a lot of exciting and a huge amount of bug fixes. We are very excited about the growing community and the many contributions we received. In particular we would like to thank @douglas-raillard-arm, @mathrick, @jlstevens, @hyamanieu, @Liam-Deacon, @Stubatiger, @ablythed, @syamajala, @Hoxbro, @jbednar, @brl0, @OBITORASU, @fleming79, dhruvbalwada and @rmorshea for contributing various fixes and improvements and the core developers @xavArtley, @MarcSkovMadsen and @philippjfr for continuing to push the development of Panel.
Features:
- Add
ReactiveHTML
(#1894, #2091, #2092, #2098, #2115, #2210, #2287, #2290, #2332, #2345, #2372, #2373, #2374, #2383, #2384, #2393, #2397, #2399, #2400, [#2401 #2402, #2404, #2533, #2535) - Add
Terminal
Widget based on xterm.js (#2090) - Adding a
DatetimePicker
widget (#2107, #2135) - Add editable sliders (#2111, #2133, #2208)
- Add
FlexBox
layout (#2233, #2511) - Add ability to configure global template (#2271)
- Add
GridStack
layout (#2375) - Add
PDF
pane (#2444) - Add
/panel-preview
endpoint for Jupyter server extension (#2341, #2361) - Add
Tqdm
Indicator (#2079)
Enhancements:
- Add empty
Progress
bar (#2088) - Optimize initialization of templates (#2096)
- Serialize
Perspective
schema (#2130) - Updated
JSON
pane to accept single quote and wrap properly (#2143, #2443) - Improvements for
Perspective
(#2153) - Improve handling of server prefix and proxied deployment scenarios (#2159, #2162)
- Add support for setting bokeh theme (#2164, #2166, #2170)
- Completely overhauled the default index template (#2198, #2340)
- Enhancements for
Template
modals (#2269, #2523) - Make the Template sidebar width configurable (#2301)
- Improve look and feel and styling of Fast templates (#2303, #2469, #2484, #2488)
- Allow setting kwargs in
Reactive.controls
(#2304) - Add global configuration variable to always throttle sliders (#2306)
- Add support for controlling text alignment in
DataFrame
andTabulator
(#2331) - Add
Tabulator
theme for Fast Templates (#2425) - Add ability to make only certain
Tabulator
rows selectable (#2433) - Add
visible
parameter to all components (#2440) - Send
Plotly
restyle and relayout events rather than full updates (#2445) - Add
push_notebook
helper function for syncing bokeh property changes in notebooks (#2447) - Improve visual styling of
Card
(#2343, #2348, #2376, #2437, #2527) - Ensure
config
variables are configured per user session (#2358, #2455, #2481) - Add
save_layout
andprevent_collision
toReactTemplate
andFastGridTemplate
(#2296, #2357) - Add ability to declare root application from
panel serve
(#2392) - Support jslinking Parameterized class (#2441)
- Improve
config.sizing_mode
behavior (#2442) - Add separate
RangeSlider
value_start
andvalue_end
parameters (#2457, #2468) - Allow saving Templates (#2461)
- Bundle
Tabulator
resources to allow usage in airgapped environment (#2471) - Ensure
Trend
indicator title wraps (#2483) - Scroll on
Tabulator
selection (#2503) - Increase notebook resource load timeout (#2515)
- Auto-detect VSCode and Colab comms (#2536)
- Add tooltip to
Tabulator
cells to see unformatted value (#2543)
Bug fixes:
- Fix missing video in
Video
(#2109) - use idom.config to set dist dir (#2117)
- Remove bootstrap CSS from
FastGridTemplate
(#2123) - Fix issues with
Ace
z-index (#2126) - Fix updating of
Tabulator
selection property (#2128) - Ensure changes on ReactiveData source are scheduled correctly (#2134)
- Fixed
Player
looping when start is 0 (#2141) - Fix divide by zero issues on Trend indicator (#2148)
- Ensure
GridSpec
override handles duplicate matches (#2150) - Fix for
loading
parameter widget linking (#2160) - Fix
Tabulator
ajax call on empty data (#2161) - Fix
Tabulator
sorting and data initialization (#2163) - Fix editing
Tabulator
with filters applied (#2165) - Fix theming on
HoloViews
plot updates (#2209) - Fixed data handling on
Perspective
pane (#2212) - Improve template and resource management for png export (#2221)
- Improve and standardize selection behavior of
Tabulator
(#2230) - Ensure JS changes to
Plotly
pane are applied if not explicitly triggered (#2251) - Fix server-side Tabulator selection changes (#2252)
- Fix update of
Param
subobjects (#2255) - Add support for
vtkCornerAnnotations
(#2257) - Improve request handling for remote pagination on
Tabulator
(#2265) - Allow setting
Param
precedence to None (#2266) - Disable nested field separators on
Tabulator
(#2289) - Fix errors when applying
Perspective
filters (#2300, #2521) - Ensure
Param
pane handles changes to unknown parameter (#2346) - Fix issues with local
Audio
andVideo
(#2380) - Ensure
ReactiveData
emits correct old data in event (#2398) - Ensure
Plotly
interactivity works whenPlotly
panes are displayed in tabs (#2418, #2463) - Fix
Ace
widget disabled parameter (#2449) - Ensure external resources are configured correctly on save (#2452)
- Ensure table formatters and editors are copied on render to avoid bokeh errors (#2453)
- Allow unicode auth response body (#2462)
- Workaround TypeError for non-string json keys on
Plotly
pane (#2465) - Fix issue with throttled updates on Param (#2470)
- Ensure
Tabulator
style is applied while streaming (#2478) - Fix issues setting resources on save (#2492)
- Fix
VideoStream
unpause (#2508) - Ensure
DataFrame
andTabulator
widget data can be updated in callback (#2510) - Fix chaining of
bind
functions (#2513) - Fix broken serialisation when syncing url parameters (#2520)
- Fix
Perspective
for string types (#2525) - Fix race condition in
--autoreload
(#2539)
Documentation:
- Update
Server_Deployment.ipynb
(#2118) - Expand description of
watch=True
inParam.ipynb
(#2120) - Switch to PyData Sphinx Theme (#2139)
- Replace altair iris example with penguins (#2213)
- Enable Binder (#2198)
- Updates and fixes for Developer Guide (#2381)
- Fixed
Tabs
documentation (#2448) - Added basic description and example of the
Tabulator.configuration
parameter (#2412) - Add parameters to
Plotly
reference guide (#2385) - Add useful links to developer docs (#2319)
- Add documentation about parameterized components (#2454)
- Demonstrate how to lazily load tabs (#2479)
Compatibility:
Deprecations:
- Remove add_periodic_callback method (#2439)
- Remove deprecated panel.callbacks modules
- Remove deprecated Ace pane and Audio Widget (#2427)
- Remove Progress widget docs (#2451)
- Tabulator no longer loaded by default, must be initialized with
pn.extension('tabulator'](https://github.com/holoviz/panel/issues/))
(#2364)
Date: 2021-04-14
The 0.11.3 release is another micro-release in the 0.11 series primarily focused on updating the documentation theme and a regression in loading Tabulator
data.
Bug fixes:
- Fix
Tabulator
sorting and data initialization (#2163) - Improved handling of
IDOM
build directory (#2168)
Documentation:
- Switch to PyData Sphinx Theme (#2139)
Date: 2021-04-08
The 0.11.2 release is a micro-release fixing a number of smaller bugs. Many thanks to @Hoxbro, @dhruvbalwada, @rmorshea, @MarcSkovMadsen, @fleming79, @OBITURASU and @philippjfr for their contributions to this release.
Enhancements:
- Optimize adding of roots to templates to avoid multiple preprocessing cycles (#2096)
- Use schema to support date(time) dtypes on
Perspective
(#2130)
Bug fixes:
- Fix regression on
Video
pane causing video not to be rendered at all (#2109) - Fix missing closing tag in Fast templates (#2121)
- Remove bootstrap CSS from
FastGridTemplate
(#2123) - Ensure
Tabulator
selection can be set from Python (#2128) - Ensure changes on ReactiveData objects are scheduled correctly on server (#2134)
- Fix for
Player
widget when start value is 0 (#2141) - Support single quotes on JSON pane (#2143)
- Fix divide by zero issues when value_change is computed from zero baseline (#2148)
- Ensure
GridSpec
handles overrides across multiple cells (#2150) - Fix for
loading
parameter widget linking (#2160) - Use relative URLs for resource loading to ensure proxied apps work (#2159)
- Fix
Tabulator
ajax call on empty data (#2161)
Documentation:
- Fix typo in Binder section of server deployment documentation (#2118)
- Improve documentation surrounding watch=True in Param user guide (#2120)
Compatibility:
Date: 2021-03-15
The 0.11.1 release is a micro-release addressing a number of smaller bugs in the last release. Many thanks to the contributors to this release including @Hoxbro, @xavArtley, @Jacob-Barhak and @philippjfr.
Enhancements:
- Allow setting horizontal and vertical alignment separately (#2072)
- Expose widgets
visible
property (#2065) - Allow bind to extract dependencies and evaluate other dynamic functions (#2056)
- Allow setting
root_directory
onFileSelector
widget ([#2086](holoviz#2086
Bug fixes:
- Fixed loading of jQuery in
BootstrapTemplate
(#2057) - Fix VTK imports to ensure
VTKVolume
pane renders grids (#2071) - Fix loading of template resources from relative paths (#2067)
- Fix
Spinner
component overflow (#2070) - Handle integer column names on
Perspective
widget (#2069) - Fix bundling of template resources (#2076)
- Fix
value_throttled
inpn.depends
decorator (#2085)
Compatibility:
- Switch GitHub OAuth to use header authorization token (#2073)
Date: 2021-03-01
The 0.11.0 release brings a number of exciting new features to Panel as well as some enhancements and bug fixes. This release is also required for Bokeh 2.3 compatibility since a lot of changes to the Bokeh property system required updates. Many thanks to the many contributors to this release including @MarcSkovMadsen, @xavArtley, @hyamanieu, @cloud-rocket, @kcpevey, @kaseyrussell, @miliante, @AjayThorve and @philippjfr.
Major features:
- A
Perspective
pane based on the FINOS Perspective library (#2034) - Implement
--autoreload
functionality for the Panel server (#1983) - Add
--warm
option to panel serve, useful for pre-loading items into the state cache (#1971) - Add ability to define JS modules and Template specific resources (#1967)
panel.serve
now supports serving static files and Bokeh apps, not just Panel apps (#1939)- Add a
TrendIndicator
for conveniently showing history and value of a numeric quantity (#1895) - Add
TextToSpeech
widget (#1878) - Add
SpeechToText
widget (#1880) - Add
loading
parameter and spinners to all components (#1730, #2026) - Add
IDOM
pane to develop interactive HTML components in Python (#2004) - Add powerful new
Tabulator
widget for flexible and configurable display of tabular data (#1531, #1887)
Enhancements:
- Add watch argument to
bind
function so that covers all the features of pn.depends (#2000) - Add
format
parameter to DatetimeRangeInput widget (#2043) - Allow
ParamMethod
andParamFunction
to evaluate lazily (#1966) - Add
value_input
parameter to TextInput widgets (#2007) - Implement
Glyph3dMapper
support forVTK
panes (#2002, #2003) - Add Jupyter server extension to serve resources (#1982)
- Enhancements for
DarkTheme
(#1964) - Add
refresh
functionality toFileSelector
(#1962) - Add support for Auth0 authentication (#1934)
- Avoid recursive preprocessing slowing down rendering (#1852)
- Add support for per-layer tooltips on
DeckGL
pane (#1846) - Add
Viewer
baseclass for custom user components (#2045)
Bug fixes:
- Fixed
FileSelector
file icon on selected files (#2046) - Drop query args when checking URLs (#2037)
- Fix
Card.header_background
propagation (#2035) - Disable
GoldenTemplate
sidebar when empty (#2017) - Ensure
Card.collapsed
andAccordion.active
parameters are synced (#2009) - Fix inline resources when saving (#1956)
- Switch
Param
pane widget type when bounds (un)defined (#1953)
Compatibility:
- Compatibility with Bokeh>=2.3 (#1948, #1988, #1991)
- Updated
ECharts
pane to 5.0.2 of JS library (#2016)
Documentation:
- Document pn.bind in API user guide (#1973)
Date: 2021-01-18
Another micro-release in the 0.10.x series focusing primarily on bug and regression fixes. Many thanks to @miliante, @MarcSkovMadsen, @Hoxbro, @jlstevens, @jbednar and @philippjfr.
Bug fixes:
- Fix inverted axes on HoloViews plots (#1732)
- Fix enabling/disabling of FileDownload widget (#1510, #1820)
- Fix issues serving template resources on server with route prefix (#1821)
- Fixes for rendering ECharts from pyecharts (#1874, #1876)
- Fix issues with scroll behavior when expanding/collapsing Card/Accordion (#1833, #1884)
- Ensure DiscreSlider label is correctly linked to value (#1906)
- Fix support for setting header_color and header_background on all templates (#1872)
- Ensure that Template preprocessors are applied during initialization (#1922)
Enhancements:
- Support throttled in Param widget (#1800)
- Support rendering of hvPlot Interactive objects (#1824)
- Allow recording session launch time in server session_info (#1909)
- Add Button.value parameter (#1910)
- Support upload of multiple parameters on FileInput (#1911)
- Improve support for DarkTheme in templates (#1855, #1856)
Documentation:
- Fixed IntSlider and FloatSlider example (#1825)
- Updated instructions for using Panel in JupyterLab (#1908)
Date: 2020-11-13
This is another micro-release primarily fixing various minor bugs in functionality introduced as part of the 0.10.0 release. Many thanks to @MarcSkovMadsen, @ahuang11, @xavArtley, @Hoxbro, @jbednar and @philippjfr.
Bug fixes:
- Fix various issues with Template CSS (#1663, #1742)
- Fix BytesIO/StringIO buffers as input to image panes (#1711)
- Fix out-of-bounds errors when assigning to
GridSpec
with fixed ncols (#1721) - Fix deserialization issues for
Plotly.hover_data
(#1722) - Fixed updating of
Alert
parameters after initialization (#1725) - Fix ordering of items added to Template areas (#1736)
- Fix interactivity for items in Card (#1750)
- Ensure onload callbacks are only run once (#1746)
- Allow overriding items in grid based templates (#1741)
- Ensure
ECharts
andipywidget
rerender when inCard
(#1765) - Ensure template dark theme persists on HoloViews plots (#1764)
- Fix responsive height in Plotly pane (#1770)
- Ensure image panes resize in width and height (#1777)
- Fix issues with Location.sync serialization (#1784)
- Add throttled argument to interact (#1259)
- ECharts pane now loads echarts-gl for 3D support (#1785)
Enhancements:
Date: 2020-10-27
This is a micro release of Paanel primarily containing bug fixes following the 0.10.0 release. Many thanks to @MarcSkovMadsen, @jbednar and @philippjfr for contributing fixes to this release.
Enhancements:
- Add pn.bind function to bind parameters to a function (#1629)
Bug fixes:
- Fix
WidgetBox
CSS (#855) - Fix CSS load order in Templates (#1698)
- Allow setting
DiscreteSlider
orientation (#1683) - Ensure JS callbacks and links are only set up once on templates (#1700)
- Initialize pipeline only once (#1705)
- Allow using
NumberInput
asParam
pane widget (#1708)
Date: 2020-10-23
This is a minor but jam-packed release of Panel, with a slew of new features and enhancements, plus a wide array of minor fixes and improvements to the documentation, and website. Many thanks to the people who contributed to this release, including @philippjfr, @MarkSkovMadsen (alert pane, templates, docs), @xavArtley (VTK improvements, templates, input/spinner widgets), @maximlt (panel serve), @jbednar (docs, reviewing), @kebowen (templates), @ahuang11 (datepicker), @nghenzi (react template, bugfixes), @nritsche (panel serve), @ltalirz (autocomplete input), @BoBednar (docs), @tmikolajczyk, @halilbay, @Hoxbro, and @ceball (testing and automation).
Features:
- Add
Card
andAccordion
layout (#1262, #1266, #1267, #1616, #1619) - Location component (#1150, #1297, #1357, #1407, #1498, #1519, #1532, #1638, #1658)
- VTK improvements: colorbars (#1270), synchronization (#1248, #1637), orientation widget (#1635), volume controller (#1631), serialization (#1596), follower (#1451)
- Add default templates (#1277, #1374, #1419, #1421, #1459, #1472, #1473, #1479, #1530, #1535, #1608, #1617, #1645, #1647, #1650, #1660, #1661, #1662, #1677, #1682, #1685, #1687)
- Improvements for ipywidgets support (#1285, #1389, #1476, #1675)
- Add
pn.state.busy
andpn.state.onload
callback (#1392, #1518) - Add support for serving static files (#1319, #1492)
- Add an
Alert
pane (#1181, #1422) - Add ability to declare OAuth provider (#820, #1468, #1470, #1474, #1475, #1480, #1508, #1594, #1625)
- Add
ECharts
pane (#1484, #1691) - Add busy/loading indicators and enable on Template (#1493)
- Allow serving REST APIs as part of panel serve (#1164)
- Add
pn.state.as_cached
function (#1526) - Add MenuButton widget (#1533)
- Add a number of
ValueIndicators
(#1528, #1590, #1627, #1628, #1633) - Add support for
param.Event
(#1600) - Add
IntInput
andFloatInput
widgets (#1513) - Record session statistics on
pn.state.session_info
(#1615, #1620, #1634) - Bundle external JS dependencies for custom models and templates (#1651, #1655)
- Add support for ipympl (interactive mode) on Matplotlib (#1469)
Enhancements:
- Allow defining explicit embed states (#1274)
- Implement
__add__
and__iadd__
on layouts (#1282) - Add support for hierarchical multi-indexed DataFrame (#1383)
- Add
show_index
option toDataFrame
widget (#1488) - Link widgets with same name during embed (#1543)
- Wait until JS dependency is loaded before rendering (#1577)
- For
AutocompleteInput
, allow user-defined values (#1588) and case-insensitivity (#1548) - Allow dates to be disabled in DatePicker (#1524)
- Enable new features for a Bokeh DataTable (#1512)
- Panel serve improvements: MethodType parameter (#1450), title per app (#1354)
- Server deployment guide for Azure (#1350)
- Add Widget.from_param classmethod (#1344)
- More options for ACE widget (#1391)
Bugfixes and minor improvements:
- VTK model compilation (#1669), findPokedRenderer (#1456), misc (#1406, #1409)
- Fix parameterized parameter handling (#1584)
- Theming improvements (#1670)
- JS dependency handling (#1626)
- Parameterized: explicit triggering (#1623), strings with None default (#1622)
- Docs and examples (#1242, #1435, #1448, #1467, #1540, #1541, #1558, #1570, #1576, #1609)
- Many other minor fixes and improvements (#1284, #1384, #1423, #1489, #1495, #1502, #1503, #1507, #1520, #1521, #1536, #1539, #1546, #1547, #1553, #1562, #1595, #1621, #1639)
Backwards compatibility:
- Switch away from inline resources in notebook (#1538, #1678)
Viewable.add_periodic_callback
is deprecated; use pn.state.add_periodic_callback (#1542)- Use
widget_type
instead oftype
to override Param widget type in Param pane (#1614) Spinner
widget is now calledNumberInput
(#1513)
The 0.9.6 release unfortunately caused a major regression in layout performance due to the way optimizations in Bokeh and Panel interacted. This release fixes this regression.
- Fix regression in layout performance (#1453)
This is a minor bug fix release primarily for compatibility with Bokeh versions >=2.1.0 along with a variety of important bug fixes. Many thanks for the many people who contributed to this release including @mattpap, @kebowen730, @xavArtley, @maximlt, @jbednar, @mycarta, @basnijholt, @jbednar and @philippjfr.
- Compatibility with Bokeh 2.1 (#1424, #1428)
- Fixes for
FileDownload
widget handling of callbacks (#1246, #1306) - Improvements and fixes for Param pane widget mapping (#1301, #1342, #1378)
- Fixed bugs handling of closed Tabs (#1337)
- Fix bug in layout
clone
method (#1349) - Improvements for
Player
widget (#1353, #1360) - Fix for
jslink
on Bokeh models (#1358) - Fix for rendering geometries in
Vega
pane (#1359) - Fix issue with
HoloViews
pane overriding selected renderer (#1429) - Fix issues with
JSON
pane depth parameter and rerendering (#1431) - Fixed
param.Date
andparam.CalenderDate
parameter mappings (#1433, #1434) - Fixed issue with enabling
num_procs
onpn.serve
(#1436) - Warn if a particular extension could not be loaded (#1437)
- Fix issues with garbage collection and potential memory leaks (#1407)
- Support recent versions of pydeck in
DeckGL
pane (#1443) - Ensure JS callbacks on widget created from Parameters are initialized (#1439)
Date: 2019-04-04
This release primarily focused on improvements and additions to the documentation. Many thanks to @MarcSkovMadsen, @philippjfr and @michaelaye for contributing to this release.
Enhancements:
- Add
Template.save
with ability to save to HTML and PNG but not embed (#1224)
Bug fixes:
- Fixed formatting of datetimes in
DataFrame
widget (#1221) - Add
panel/models/vtk/
subpackage to MANIFEST to ensure it is shipped with packages
Documentation:
- Add guidance about developing custom models (#1220)
- Add Folium example to gallery (#1189)
- Add
FileDownload
andFileInput
example to gallery (#1193)
Date: 2020-04-02
This is a minor release fixing a number of regressions and compatibility issues which continue to crop up due to the upgrade to Bokeh 2.0 Additionally this release completely overhauls how communication in notebook environments are handled, eliminating the need to register custom callbacks with inlined JS callbacks to sync properties. Many thanks to the contributors to this release including @hyamanieu, @maximlt, @mattpap and the maintainer @philippjfr.
Enhancements:
- Switch to using CommManager in notebook hugely simplifying comms in notebooks and reducing the amount of inlined Javascript (#1171)
- Add ability to serve Flask apps directly using pn.serve (#1215)
Bug fixes:
- Fix bug in Template which caused all roots to instantiate two models for each component (#1216)
- Fixed bug with Bokeh 2.0 DataPicker datetime format (#1187)
- Publish Panel.js to CDN to allow static HTML exports with CDN resources to work (#1190)
- Handle bug in rendering Vega models with singular dataset (#1201)
- Removed escaping workaround for HTML models resulting in broken static exports (#1206)
- Fixed bug closing Tabs (#1208)
- Embed Panel logo in server index.html (#1209)
Compatibility:
- This release adds compatibility with Bokeh 2.0.1 which caused a regression in loading custom models
Date: 2019-03-21
This is a minor release fixing an issue with recent versions of Tornado. It also fixes issue with the packages built on the PyViz conda channel.
- Respect write-locks on synchronous Websocket events (#1170)
Date: 2019-03-21
This is a minor release with a number of bug fixes. Many thanks to @ceball, @Guillemdb and @philippjfr for contributing these fixes.
Bug fixes:
- Fix regression in DiscreteSlider layout (#1163)
- Fix for saving as PNG which regressed due to changes in bokeh 2.0 (#1165)
- Allow pn.serve to resolve Template instances returned by a function (#1167)
- Ensure Template can render empty HoloViews pane (#1168)
Date: 2019-03-19
This is very minor releases fixing small regressions in the 0.9.0 release:
Bug fixes:
- Fix issue with
Button
label not being applied (#1152) - Pin pyviz_comms 0.7.4 to avoid issues with undefined vars (#1153)
Date: 2019-03-13
This is a major release primarily for compatibility with the recent Bokeh 2.0 release. Additionally this release has a small number of features and bug fixes:
Features:
- Added a
MultiChoice
widget (#1140) - Add
FileDownload
widget (#915, #1146) - Add ability to define
Slider
format option (#1142) - Expose
pn.state.cookies
andpn.state.headers
to allow accessing HTTP headers and requests from inside an app (#1143)
Bug fixes:
- Ensure
DiscreteSlider
respects layout options (#1144)
Removals:
- Slider no longer support
callback_policy
andcallback_throttle
as they have been replaced by thevalue_throttled
property in bokeh
Date: 2019-03-11
This release is a minor release with a number of bug fixes and minor enhancements. Many thanks to the community of contributors including @bstadlbauer, @ltalirz @ceball and @gmoutsofor submitting the fixes and the maintainers, including @xavArtley, @jbednar and @philippjfr, for continued development.
Minor enhancements:
- Added verbose option to display server address (#1098) [@philippjfr]
Bug fixes:
- Fix PNG export due to issue with PhantomJS (#1081, #1092) [@bstadlbauer, @philippjfr]
- Fix for threaded server (#1090) [@xavArtley]
- Ensure Plotly Pane does not perform rerender on each property change (#1109) [@philippjfr]
- Fix issues with jslink and other callbacks in Template (#1135) [@philippjfr]
- Various fixes for VTK pane (#1123) [@xavArtley]
- Fixes for .show keyword arguments (#1073, #1106) [@gmoutso]
Date: 2019-01-31
This release focuses primarily on solidifying existing functionality, significantly improving performance and fixing a number of important bugs. Additionally this release contains exciting new functionality, including several new components. We want to thank the many contributors to this release (a full list is provided at the bottom), particularly @MarcSkovMadsen (the author of awesome-panel.org) and @xavArtley, who has been hard at work at improving VTK support. We also want to thank the remaining contributors including @philippjfr, @ceball, @jbednar, @jlstevens, @Italirz, @mattpap, @Jacob-Barhak, @stefjunod and @kgullikson88. This release required only minimal changes in existing APIs and added a small number of new ones, reflecting the fact that Panel is now relatively stable and is progressing steadily towards a 1.0 release.
- Added new
DeckGL
pane (#1019, #1027) - Major improvements to support for JS linking (#1007)
- Huge performance improvements when nesting a lot of components deeply (#867, #888, #895, #988)
- Add support for displaying callback errors and print output in the notebook simplifying debugging (#977)
- Add support for dynamically populating
Tabs
(#995) - Added
FileSelector
widget to browse the servers file system and select files (#909) - Add
pn.serve
function to serve multiple apps at once on the same serve (#963) - Add a
JSON
pane to display json data in a tree format (#953)
- Updated Parameter mappings (#999)
- Ensure that closed tabs update
Tabs.objects
(#973) - Fixed HoloViews axis linking across
Template
roots (#980) - Merge FactorRange when linking HoloViews axes (#968)
- Expose title and other kwargs on
.show()
(#962) - Let
FileInput
widget set filename (#956 - Expose further bokeh CLI commands and added help (#951)
- Enable responsive sizing for
Vega
/altair pane (#949) - Added encode parameter to
SVG
pane (#913) - Improve
Markdown
handling including syntax highlighting and indentation (#881) - Add ability to define Template variables (#815)
- Allow configuring responsive behavior globally (#851)
- Ensure that changes applied in callbacks are reflected on the frontend immediately (#857)
- Add ability to add axes coordinates to
VTK
view (#817) - Add config option for
safe_embed
which ensures all state is recorded (#1040) - Implemented
__signature__
for tab completion (#1029)
- Fixed
DataFrame
widget selection parameter (#989) - Fixes for rendering long strings on Windows systems (#986)
- Ensure that panel does not modify user objects (#967)
- Fix multi-level expand
Param
subobject (#965) - Ensure
load_notebook
is executed only once (#1000) - Fixed bug updating
StaticText
on server (#964) - Do not link
HoloViews
axes with different types (#937) - Ensure that integer sliders are actually integers (#876)
- Ensure that
GridBox
contents maintain size (#971)
- Compatibility for new Param API (#992, #998)
- Changes for compatibility with Vega5 and altair 4 (#873, #889, #892, #927, #933)
- The Ace pane has been deprecated in favor of the Ace widget (#908)
- Updated Django multiple app example and user guide (#928) [@stefjunod]
- Clarify developer installation instructions, and fix up some metadata. (#952, #978)
- Added
Param
reference notebook (#944) - Added
Divider
reference notebook
Date: 2019-11-18T21:22:16Z
This major release includes significant new functionality along with important bug and documentation fixes, including contributions from @philippjfr (maintainer and lead developer), @xavArtley (VTK support), @jbednar (docs), @DancingQuanta (FileInput), @a-recknagel (Python 3.8 support, misc), @julwin (TextAreaInput, PasswordInput), @rs2 (example notebooks), @xtaje (default values), @Karamya (Audio widget), @ceball, @ahuang11 , @eddienko, @Jacob-Barhak, @jlstevens, @jsignell, @kleavor, @lsetiawan, @mattpap, @maxibor, and @RedBeardCode.
Major enhancements:
- Added pn.ipywidget() function for using panels and panes as ipwidgets, e.g. in voila (#745, #755, #771)
- Greatly expanded and improved Pipeline, which now allows branching graphs (#712, #735, #737, #770)
- Added streaming helper objects, including for the streamz package (#767, #769)
- Added VTK gallery example and other VTK enhancements (#605, #606, #715, #729)
- Add GridBox layout (#608, #761, #763)
- New widgets and panes:
Other enhancements:
- Make Row/Column scrollable (#760)
- Support file-like objects (not just paths) for images (#686)
- Added isdatetime utility (#687)
- Added repr, kill_all_servers, and cache to pn.state (#697,#776)
- Added Slider value_throttled parameter (#777)
- Extended existing widgets and panes:
- WidgetBox can be disabled programmatically (#532)
- Templates can now render inside a notebook cell (#666)
- Added jscallback method to Viewable objects (#665)
- Added min_characters parameter to AutocompleteInput (#721)
- Added accept parameter to FileInput (#602)
- Added definition_order parameter to CrossSelector (#570)
- Misc widget fixes and improvements (#703, #717, #724, #762, #775](holoviz#775))
Bug fixes and minor improvements:
- Removed mutable default args (#692, #694)
- Improved tests (#691, #699, #700)
- Improved fancy layout for scrubber (#571)
- Improved plotly datetime handling (#688, #698)
- Improved JSON embedding (#589)
- Misc fixes and improvements (#626, #631, #645, #662, #681, #689, #695, #723, #725, #738, #743, #744, #748, #749, #758, #768, #772, #774, #775](holoviz#775), #779, #784, #785, #787, #788, #789)
- Prepare support for python 3.8 (#702)
Documentation:
- Expanded and updated FAQ (#750, #765)
- Add Comparisons section (#643)
- Docs fixes and improvements (#635, #670, #705, #708, #709, #740, #747, #752)
Date: 2019-08-08T15:13:31Z
Minor bugfix release patching issues with 0.6.1, primarily in the CI setup. Also removed the not-yet-supported definition_order parameter of pn.CrossSelector.
Date: 2019-10-08T17:41:51Z
This release includes a number of important bug fixes along with some minor enhancements, including contributions from @philippjfr, @jsignell, @ahuang11, @jonmmease, and @hoseppan.
Enhancements:
- Allow pn.depends and pn.interact to accept widgets and update their output when widget values change (#639)
- Add fancy_layout option to HoloViews pane (#543)
- Allow not embedding local files (e.g. images) when exporting to HTML (#625)
Bug fixes and minor improvements:
- Restore logging messages that were being suppressed by the distributed package (#682)
- HoloViews fixes and improvements (#595, #599, #601, #659)
- Misc other bug fixes and improvements (#575, #588, #649, #654, #657, #660, #667, #677)
Documentation:
- Added example of opening a URL from jslink (#607)
Date: 2019-09-19T10:28:36Z
This release saw a number of important bug and documentation fixes along with some minor enhancements.
Enhancements:
- Added support for embedding Player widget (#584)
- Add support for linking HoloViews plot axes across panels (#586)
- Allow saving to BytesIO buffer (#596)
- Allow
PeriodicCallback.period
to be updated dynamically (#609)
Bug fixes:
- While hooks are applied to model no events are sent to frontend (#585)
- Various fixes for embedding and rendering (#594)
Documentation:
- New example of periodic callbacks (#573)
- Improve
panel serve
documentation (#611, #614) - Add server deployment guide (#642)
Date: 2019-08-01T14:54:20Z
Date: 2019-06-02T17:56:26Z
Date: 2019-04-11T16:52:06Z
Minor release closely following up on 0.5.0 updating version requirements to include the officially released bokeh 1.1.0. This release also includes contributions from @philippjfr (with fixes for pipeline and embed features), @xavArtley (addition of a new widget) and @banesullivan (fixes for VTK support).
Features:
- Addition of
Spinner
widget for numeric inputs (#368)
Bugfixes:
- Skip jslinked widgets when using embed (#376)
- Correctly revert changes to pipelines when stage transitions fail (#375)
- Fixed bug handling scalar arrays in VTK pane (#372)
Date: 2019-04-04T00:42:59Z
Major new release, greatly improving usability and capabilities. Includes contributions from @philippjfr (docs, better layouts, and many other features), @xavArtley (VTK support, Ace code editor), @banesullivan (VTK support), @jbednar and @rtmatx (docs), @jsignell (docs, infrastructure, interact support), and @jlstevens (labels for parameters).
Major new features:
- Now uses Bokeh 1.1's greatly improved layout system, requiring far fewer manual adjustments to spacing (#32)
- Greatly expanded docs, now with galleries (#241, #251, #265, #281, #318, #332, #347, #340)
- Allow embedding app state, to support static HTML export of panels (#250)
- Added new GridSpec layout type, making it simpler to make grid-based dashboards (#338)
- Added VTK 3D object pane (#312, #337, #349, #355, #363)
- Added Ace code editor pane (#359)
- Allow defining external JS and CSS resources via config, making it easier to extend Panel (#330)
- Add HTML model capable of executing JS code, allowing more complex embedded items (#326)
- Add a KaTeX and MathJax based LaTeX pane, replacing the previous limited matplotlib/PNG-based support (#311)
Other new features:
- Allow passing Parameter instances to Param pane, making it much simpler to work with individual parameters (#303)
- Added parameter for widget alignment (#367)
- Allow specifying initial value when specifying min/max/step for interact (#334)
- Add support for param.Number step (#365)
- Add a PeriodicCallback (#348)
- Expose curdoc and session_context when using serve (#336)
- Add support for saving and loading embedded data from JSON (#301)
- Add support for specifying arbitrary
label
for Parameters (#290) - Add ColorPicker widget (#267)
- Add support for interact title (#266)
Bugfixes and minor improvements:
- Combine HTML and JS in MIME bundle to improve browser compatibility (#327)
- Inlined subobject expand toggle button (#329)
- Use Select widget for ObjectSelector consistently to avoid issues with short lists and numeric lists (#362)
- Various small improvements (#238, #245, #257, #258, #259, #262, #264, #276, #289, #293, #307, #313, #343, #331)
- Various bugfixes (#247, #261, #263, #282, #288, #291, #297, #295, #305, #309, #322, #328, #341, #345, #354, #364)
Changes potentially affecting backwards compatibility:
- Refactored io subpackage (#315)
- Moved panes and widgets into subpackage (#283)
- Cleaned up wdiget, deploy, and export APIs (#268, #269)
- Renamed pane precedence to priority to avoid confusion with Param precedence (#235)
Date: 2018-12-05T22:49:23Z
Minor release fixing packaging issues.
Date: 2018-12-05T00:47:25Z
Thanks to @mhc03 for bugfixes.
New features and enhancements
- New app: Euler's Method (#161)
- New widgets and panes: Player (#110), DiscretePlayer (#171), CrossSelector (#153)
- Spinner (spinner.gif)
- Compositional string reprs (#129)
- Add Param.widgets parameter to override default widgets (#172)
- Pipeline improvements (#145, etc.)
- Additional entry points for user commands (#176)
- Support calling from anaconda-project (#133)
- Improved docs
Bugfixes:
- Fix example packaging (#177)
- Various bugfixes and compatibility improvements (#126, #128, #132, #136, #141, #142, #150, #151, #154, etc.)
Compatibility changes
- Renamed Param expand options (#127)
Date: 2019-01-28T18:02:57Z
Thanks to @xavArtley for several contributions, and to @lebedov for bugfixes.
New features:
- Now Python2 compatible (#225)
- Audio player widget (#215,#221)
- FileInput widget (#207)
- General support for linking Panel objects, even in static exports (#199)
- New user-guide notebooks: Introduction (#178), Links (#195).
Enhancements:
Bug fixes:
Date: 2018-10-23T12:09:07Z