JupyterLab Weekly Meeting Minutes - Archive September 1 - December 22 2021

1 September 2021 - 22 December 2021

Future Meeting Note

https://hackmd.io/Y7fBMQPSQ1C08SDGI-fwtg

Mar 2021 - Aug 2021

https://hackmd.io/T-2PcTqXRqiRbY6i61GHfw?view

22 December 2021

Attendees

Name	Affiliation	GitHub	Favorite Winter Sport
Frederic Collonval	QuantStack	@fcollonval	Eating cheese
Jason Weill	AWS	@jweill-aws	Ice hockey, eating bredele
William Stein	SageMath, Inc. (CoCalc)	@williamstein	Splitboard Mountaineering on Volcanoes
Gabriel Fouasnon	Quansight	@gabalafou	Hot tubbing
Carlos Herrero	QuantStack	@hbcarlos
Sylvain Corlay	QuantStack	@SylvainCorlay	Eating Raclette
Karla Spuldaro	IBM	@karlaspuldaro	ice skating
Mehmet Bektas	Splunk	@mbektas
R Ely	Bloomberg	@ohrely	complaining
Ahmed Fasih	Bloomberg	@fasiha	snowman-making
A. T. Darian	Two Sigma	@afshin	Hockey
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf	cleaning leaves out of gutters when it rains
Pete Blois	Google	@blois	Skate skiing
Matt Henderson	LBNL	@mlhenderson
M Krassowski	Oxford	@krassowski

PRs needing review

Agenda

Isabela
- How can I get review on a blog post I'd like to have on the Jupyter blog? (The blog contribution documentation doesn't seem to have the info I need)
Frederic
- JupyterLab monthly Performance meeting after this one
- jupyterlab/benchmarks reboot for advanced benchmark tests on GitHub CI
- Triage policy update
- jupyterlab_server released 2.10.1: changelog
  - Thanks to Steve
Carlos
- Remove document's content from ModelDB
- https://github.com/jupyterlab/jupyterlab/issues/11602

Additional Discussions

mybinder - use of JupyterLite:
- Temporarily use JupyterLite for high-traffic links to mybinder.org: https://github.com/jupyter/jupyter.github.io/issues/513
- Should we move JupyterLite in JupyterLab organization and make it official?
  - What would be needed to have it official?
- [williamstein] From test at Cocalc, asynchronous events can result in troubles for displaying graphs,… (answer to Nick question: does anybody have a big con?)
- [SylvainCorlay] pyiode may not be the best way to bring CPython in the web
  - [williamstein] did lots of work on building CPython for the web
    I’ve been working on something like Brython for fun for a while, incidentally: https://github.com/sagemathinc/JSage/blob/main/packages/jpython/README.md
    https://github.com/sagemathinc/JSage/tree/main/packages/python
JupyterLab 3.3 - List of features to include:
- Please update/comment on https://github.com/jupyterlab/jupyterlab/issues/11643
Triage issue:
- PR for documenting it
- issue on team-compass
JupyterLab 4:
- GitHub project
- Milestone

This meeting will not be held next week (Dec 29).

15 December 2021

Attendees

Name	Affiliation	GitHub	Favorite Dish for Christmas
Alex Bozarth	IBM	@ajbozarth	Peanutbutter Balls
Johan Mabille	QuantStack	@JohanMabille
David Brochart	QuantStack	@davidbrochart
William Stein	SageMath/CoCalc	@williamstein
Craig Citro	Google	@craigcitro	pie
Martin Renou	QuantStack	@martinRenou	Turkey and Chestnuts
Martha Cryan	IBM	@marthacryan
Carlos Herrero	QuantStack	@hbcarlos	Puchero
Michal Krassowski	Oxford	@krassowski
tonyfast	quansight	@tonyfast
Piyush Jain	AWS	@3coins
Ely	Bloomberg	@ohrely	Chinese Takeout
Frederic Collonval	QuantStack	@fcollonval	Cheese soufflé
Sylvain Corlay	QuantStack	@SylvainCorlay	Champagne
Kevin Jahns	QuantStack / Yjs	@dmonad	Printen
Gabriel Fouasnon	Quansight	@gabalafou
Pete Blois	Google	@blois	Cranberries
Matt Henderson	LBNL	@mlhenderson	Cookies
Karla Spuldaro	IBM	@karlaspuldaro	Chocolate Panettone
Jason Grout	Databricks	@jasongrout	Bratzeli
Jeremy Tuloup	QuantStack	@jtpio
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf
Ahmed Fasih	Bloomberg	@fasiha	mapo tofu

Agenda

Tony/Ely
- Accessibility hands on workshop tomorrow @ 9am PST
JupyterLab 4:
- Target date? Not before end of Q1 2022
- Should we make a 3.3 release? https://github.com/jupyterlab/jupyterlab/issues/11643
  - Triage list in mentionned issue at January 2nd weekly meeting
  - Target RC January 20th
- What API-breaking changes are still to be done? See https://github.com/jupyterlab/jupyterlab/issues/9647#issuecomment-965612826
  - RTC (Next steps on RTC #11434) @hbcarlos
    - PR https://github.com/jupyterlab/jupyterlab/issues/11434
  - Service Manager (Clean up Frontend Typings #11537)
  - BluePrintJS Removal (Remove Blueprint #11173)
  - Migration to CodeMirror 6 (WIP) @JohanMabille
  - Quid notebook 7? @jtpio
  - Configurable shell.add (Probably not) @fcollonval
  - Completer API (https://github.com/jupyterlab/jupyterlab/pull/10523) @hbcarlos @krassowski: by end of Feb
  - Performance - Windowed notebook (WIP) @fcollonval
  - Search on model? To be evaluated (WIP PR) @fcollonval
    The search should be moved at the model level.
  - Remove ToC content preview? @fcollonval
    The current implementation will break as for code preview it copies the DOM from the notebook.
  - Impact on heading collapsing? Should be ok PR opened
Alex
- Does anyone know of an extension suite (ie build using lerna) that uses pre-built extensions?
  - Mike: LSP
  - Jason: ipywidgets
  - Related discussion on gitter: https://gitter.im/jupyterlab/jupyterlab?at=61b112c9a9c8eb44c41dc2dc
Frederic
- Drop of storybook
- Proposal for a new weekly section: PRs pending review
  - Image Not Showing Possible Reasons
    The image file may be corrupted
    The server hosting the image is unavailable
    The image path is incorrect
    The image format is not supported
    Learn More →
    @3coins
Johan
- First pass of migration to CodeMirror6 done: draft PR
  - [@jasongrout] This can bring a source of tension for extension authors migrating from notebook 6 to 7
    - [Sylvain]: part of notebook 7 JEP (accessibility/LSP)
    - [Isabela in chat]: communication/expectation management
  - [mike] what is the state of support for legacy syntax highlighting modes - do we need to give extesnion/kernel authors a heads up on the need to prepare any possible updates?
Jeremy
- JupyterLab 3.2.5: https://github.com/jupyterlab/jupyterlab/releases/tag/v3.2.5
- Clean up PRs
- Move the top area spacer to a different plugin: https://github.com/jupyterlab/jupyterlab/pull/11654
  - Ideas on a Toolbar-like interface to add items? Or keep it as is for 4.0?
- Remove the create:theme script: https://github.com/jupyterlab/jupyterlab/pull/11683
- Remove the add:sibling script https://github.com/jupyterlab/jupyterlab/pull/11685
- Drop Python 3.6 for JupyterLab 4.0? https://github.com/jupyterlab/jupyterlab/pull/11646
  - Drop compatibility or just drop testing?
  - Python 3.6 is End-of-Life this month, which means running 3.6 is a security issue after this month.
  - Scientific Python community advocated for dropping 3.6 in June 2020. Incidentally, the same proposal advocates for dropping support for Python 3.7 this month (Dec 2021).
  - Several people feel we should drop support for Python 3.6 in a Jan/Feb 3.3 release.
Carlos
- Remove document's content from ModelDB
  - Remove source from modelDB
  - Remove metadata from modelDB:
    - Replace the metadata object every time we want to add|remove|update an attribute.
    - Typed metadata (at least the attributes presents in NBFormat).
- RBAC:
  - Next steps on RTC
  - Add authorization layer to server request handlers
- ICurrentUser:
  - Identity API
  - Switching from user extension to user service

Additional discussions

Triage issue:
- PR for documenting it
- issue on team-compass
JupyterLab 4:
- GitHub project
- Milestone
How we handle names (firstName, fullName, familyName)
- https://github.com/jupyterlab/jupyterlab/issues/11657
- [@williamstein] It is important to document what the software will do / what is the purpose of the name. This will orientate the choice of the user
- [@williamstein] Many sites have just "Name" and also a "username" (like @williamstein)… CoCalc has “first_name” and “last_name” and I really regret that and wish it was just “Name”. In CoCalc the name is used for: cursor, avatar (first letter), searching for collabs (can be set to unlisted), and showing in @mentions. In courses, we let the instructor set a fixed name they see for a given account, since students can change their names (this was requested by instructors).
- [@krassowski] Apple defines default/short/long/abbreviated styles: https://developer.apple.com/documentation/foundation/personnamecomponentsformatter
- [@tonyfast] all of these concepts are defined formally in the FOAF core http://xmlns.com/foaf/spec/#glance

These meetings will continue to be held through the holiday season (Dec 22, Dec 29).

08 December 2021

The meeting notes are here on HackMD today.

Attendees

Name	Affiliation	GitHub	Favorite Ancient Monument
Alex Bozarth	IBM	@ajbozarth	Liberary of Alexandria
Frederic Collonval	QuantStack	@fcollonval
Martha Cryan	IBM	@marthacryan
William Stein	SageMath, Inc.	@williamstein
Jason Weill	AWS	@jweill-aws	Great Pyramids
Vidar T Fauske	JP Morgan Chase	@vidartf
R Ely	Bloomberg	@ohrely	Moai
Gabriel Fouasnon	Quansight Labs	@gabalafou	Hagia Sophia
Pete Blois	Google	@blois	Parthenon
Martin Renou	QuantStack	@martinRenou
Piyush Jain	AWS	@3coins
Brian Granger	AWS	@ellisonbg
Kevin Jahns	QuantStack / Yjs	@dmonad
Mehmet Bektas	Splunk	@mbektas
Sylvain Corlay	QuantStack	@SylvainCorlay
Johan Mabille	QuantStack	@JohanMabille
Karla Spuldaro	IBM	@karlaspuldaro	Machu Picchu
Matt Henderson	LBNL	@mlhenderson	Pyramids
Jason Grout	Databricks	@jasongrout	Obelisks?
Carlos Herrero	QuantStack	@hbcarlos
Jeremy Tuloup	QuantStack	@jtpio
Jessica Xu		@jess-x
Michał Krassowski	Oxford	@krassowski
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf
A. T. Darian	Two Sigma	@afshin

Agenda

Frederic
- Right to update readthedocs for jupyterlab/benchmarks
- Proposal for a new weekly section: PRs pending review
Alex
- Elyra 3.3 has been released: Blog
- Open Question: Do we want to set a target date for 4.0 yet?
Martha
- Last part to finish in this PR is fixing visual regression tests - a little lost / stuck? Would anyone be able to point me to good documentation or maybe do a call to check out what's happening?
  [@fcollonval] I can do that - let's organize a public call if people want to take the chance to learn about galata.
  [@jtpio] It could be useful to link to other projects also using Galata, such as Voila, RetroLab, ipywidgets
Martin
- RTC: Show currently focused cells by other collaborators (this issue)
Kevin
- Local cell-based undo manager https://github.com/jupyterlab/jupyterlab/pull/11640
Jeremy
- Clean up Frontend Typings (originally started by Steve): https://github.com/jupyterlab/jupyterlab/pull/11537
- 4.0.0a16: https://github.com/jupyterlab/jupyterlab/releases/tag/v4.0.0a16
- Includes the major version bump of the JS packages. List of api-change merged PRs for the 4.0 milestone: https://github.com/jupyterlab/jupyterlab/pulls?q=is%3Apr+is%3Aclosed+label%3Aapi-change+milestone%3A4.0
Brian
- Draft of an improved JS magic
- https://github.com/ipython/ipython/issues/13376
Piyush
- Kernel auto re-connect stops after 7 attempts #11534
  - Possible fixes:
    - Make the limit configurable (throught settings?)
    - Wait for that JEP
Jason W
- How should we triage issues in our project? How do we mark already-triaged issues as such?
  - ~~Create a new label Needs triage?~~
  - Let's open an issue on the team-compass to settle (Jason W to do this, include Luciano)
  - Jeremy recommends: https://github.com/jupyterlab/team-compass/issues/90
Ely
- Accessibility Workshop 12/16 https://hackmd.io/JmEN6JIMTn6f9IKuLCoo0Q?view
Johan
- Migration to CodeMirror 6 https://github.com/jupyterlab/jupyterlab/pull/11638
  - Ordering of extensions is important: [Nick] that happens in markdown-it extension. We should think to a way to do that in a generic way for complex case (for which rank is not enough).
Sylvain
- Printing notebooks
Carlos
- ICurrentUser: https://github.com/jupyterlab/jupyterlab/pull/11443
  - Remove StateDB -> added local storage
  - Discussion about colors
  - Removed role to discuss RBAC and open another PR for that property
Matt
- jupyterlab-contrib repos (favorites, recents), getting added?
  - [@fcollonval] Could you open an issue there please?
- question about xarray display (repr in notebooks) related PR
- catching up with current Lab
  - Link to [Archived meeting notes](https://github.com/jupyterlab/team-compass/issues/128

Additional discussions

JupyterLab 4:
- Target date?
- GitHub project
- Milestone

01 December 2021

The meeting notes will be here (hackmd) today.

Attendees

Name	Affiliation	GitHub	Favorite Ice Cream Flavor
Frederic Collonval	QuantStack	@fcollonval	Rum Raisin
William Stein	SageMath	@williamstein	chocolate
Carlos Herrero	QuantStack	@hbcarlos
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf	i can't choose!
Gabriel Fouasnon	Quansight Labs	@gabalafou	Americone Dream
Alex Bozarth	IBM	@ajbozarth	mint chip
R Ely	Bloomberg	@ohrely	Bailey's
Pete Blois	Google	@blois	Bubblegum
Ahmed Fasih	Bloomberg	@fasiha	rocky road
Jeremy Tuloup	QuantStack	@jtpio
Jason Grout	Databricks	@jasongrout	Homemade Vanilla?
Mehmet Bektas	Splunk	@mbektas
Theodore Aptekarev	No org 🤷‍♂️	@piiq	Lemon sorbet
Jessica Xu	☝️	@jess-x	Horchata
Martin Renou	QuantStack	@martinRenou

Agenda

Link to good first issues (good way to start contributing): https://github.com/jupyterlab/jupyterlab/issues?q=is%3Aopen+is%3Aissue+label%3A"good+first+issue"

Frederic
- New reviewers - who have rights to add them to triage?
  - Jason Weill @jweill-aws
  - Jessica Xu @jess-x
  - Piyush Jain @3coins
  - Ely @ohrely
  - Mike @krassowski
- RISE in JLab: help wanted - import local CSS files failure due to Content-Type = text/html and nosniff => Forbidden by browser
  Use files path to request the CSS
- Advanced benchmark
Carlos
- Add a user package to represent the current connected user
  - The user icon is only visible when the collaborative flag is true
  - Spacer in the topbar
- Remove document's content from ModelDB
  - Remove source from ModelDB
  - Remove metadata from ModelDB
  - Deduplicate outputs' state.
Isabela
- Today is the accessibility meeting! Come join in after this call.
Jeremy
- TypeScript 4.5: https://github.com/jupyterlab/jupyterlab/pull/11594
- Major version bump for JS packages soon
@jasongrout: Just FYI, I'm now working and contributing from Databricks
Tony & Ely
- A hands on jupyter accessibility sprint on dec 16 @ 9am pst (5pm gmt).
There's been recent activity on jupyter.github.io including some accessibility PRs that could use attention from people in the Jupyter organization.
Martin Renou
- RTC discussion: UX Show the currently focused cell by other collaborators https://github.com/jupyterlab/jupyterlab/issues/11555
  Would love some feedback on this :)

Additional discussions

Link to JupyterLab 4 roadmap: GitHub project
Update on undo feature: additional tests are on their way on yjs to be able to bring it in JupyterLab then.
PoC WebComponent for Jupyter

24 November 2021

The meeting notes will be here (hackmd) today.

Attendees

Name	Affiliation	GitHub	Favorite favorite topics
Frederic Collonval	QuantStack	@fcollonval
Sylvain Corlay	QuantStack	@SylvainCorlay
Rick McGeer	engageLively	@rickmcgeer	Obscure dictionary word
Pete Blois	Google	@blois
Nick Bollweg	Georgia Tech	@bollwyvl	downfall of society
Karla Spuldaro	IBM	@karlaspuldaro
R Ely	Bloomberg	ohrely	ice cream flavor
Michał Krassowski	Oxford	@krassowski
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf	favorite ancient monument
Konstantin Taletskiy	Axle Informatics/NIH	@ktaletsk	Favorite holiday food

Alex Bozarth	IBM	@ajbozarth
Martin Renou	QuantStack	@martinRenou	Favorite between Jupyter Notebook and JupyterLab
Carlos Herrero	QuantStack	@hbcarlos
Gabriel Fouasnon	Quansight Labs	@gabalafou	Favorite books

Agenda

JupyterLab 3.x or 4.0 for notebook 7 issue
Currently RetroLab (to-be notebook 7) is based on lab 3.x branch. But some new features will be needed for it:

Customize widget position to fit with notebook layout
Add cells toolbar ([TBC] bringing jlab-enhanced-cell-toolbar in Lab)
Add tour (bringing jupyterlab-tour in Lab)
Cons for 3.x
If we do a release 3.x for it, this will strip more reasons to update to JLab 4.
If it is linked to 4, this avoid releasing notebook 8 after JLab 4
Image Not Showing Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
An excuse for extensions authors to modify their extension to be compatible because the API has changed.
Pros for 3.x
[Mike] IMO for Notebook we need prebuilt extension manager
Less breaking changes?

[Afshin] it makes sense regarding the amount of work to be done for notebook v7 that it will be based on JLab 4. Moreover it will be better to not annoy extension authors that just got converted to NPM world to modify again their extensions because we bumped the major version.

Frederic
- Performance meeting after this one
- New reviewers: next steps?
  - Jason Weill @jweill-aws
  - Jessica Xu @jess-x
  - Piyush Jain @3coins
  - Ely @ohrely
  - [Mike] can I get triage/review on https://github.com/jupyter/jupyter.github.io (we got an influx of small PRs) - who to ask?
- Bug fix release and translatable string
  Should that PR be delayed https://github.com/jupyterlab/jupyterlab/pull/11502?
- RTC trusted outputs
  https://github.com/jupyterlab/jupyterlab/pull/11494
  - [Pete] origin of Colab's iframe outputs. rather than a dialog could it render the non-interactive outputs (text/plain) for remote outputs, with a button to allow switching to the rich mime types?
  - [Tony] accessibility
  - [Sylvain] a shield thing by untrusted output
  - [Mike] There is already a similar pattern with trust button for the html viewer.
- would you be OK with the arrows always being visible?
  Enhance collapsing heading PR
- Windowed notebook
Sylvain:
- Some boring CSS changes (removing flexbox for output areas) so that we can use break-inside: avoid-pages for printing notebooks (in nbconvert).
  https://github.com/jupyterlab/jupyterlab/pull/11508
Nick
- JupyterLite update
  - offline/custom python wheels and mathjax
  - start introducing people to it in docs sites?
Mike:
- prebuilt extension manager - any work going here?
- To list the packages on PyPI, there is a deprecated API to list packages based on classifiers
- or use NPM to fetch the list and get the directions from package.json
- PyPI seem the best candidate.
- [Nick] extension install providers without concrete implementation
  Image Not Showing Possible Reasons
  - The image file may be corrupted
  - The server hosting the image is unavailable
  - The image path is incorrect
  - The image format is not supported
  Learn More →
  @krassowski
- Bottom line: we should remove the installation part of the extension manager UI for JupyterLab 4 (keeping the listing part of the installed extensions)
  Image Not Showing Possible Reasons
  - The image file may be corrupted
  - The server hosting the image is unavailable
  - The image path is incorrect
  - The image format is not supported
  Learn More →
  @SylvainCorlay @fcollonval

Additional discussions

17 November 2021

Attendees

Name	Affiliation	GitHub	Favorite programming language
Frederic Collonval	QuantStack	@fcollonval	Python what else
A. T. Darian	Two Sigma	@afshin
Piyush Jain	AWS	@3coins	Python
Martha Cryan	IBM	@marthacryan
Jason Weill	AWS	@jweill-aws	TypeScript
Michał Krassowski	Oxford	@krassowski	Python
R Ely	Bloomberg	@ohrely	Scala
Jason Grout	Bloomberg	@jasongrout
Jeremy Tuloup	QuantStack	@jtpio
Eric Charles	Datalayer	@echarles
Jessica Xu	Quansight	@jess-x
Rick McGeer	engageLively	@rickmcgeer	Smalltalk
Karla Spuldaro	IBM	@karlaspuldaro
Pete Blois	Google	@blois
Nick Bollweg	Georgia Tech	@bollwyvl	logo
Martin Renou	QuantStack	@martinRenou	Not decided yet
Gabriel Fouasnon	Quansight	@gabalafou	Lisp?
Mehmet Bektas	Splunk	@mbektas	C++
Carlos Herrero	QuantStack	@hbcarlos
Ahmed Fasih	Bloomberg	@fasiha	still waiting
tony fast	quansight	@tonyfast	markdown
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf

Agenda

Isabela
- Accessibility meeting is right after this one. Come join us!
Michał Krassowski
- I would like to add two new tags: tag:Collapsible Headings, tag:Virtual Rendering as there are quite a few bugs related to these features and it gets difficult to navigate them otherwise (they do not have a dedicated package). Does it sound good?
  - No objections, and several +1s.
team-compass
- transfer classic jupyter/notebook to the jupyterlab organization
  - In wait for governance update
Frederic
- Update reviewers list: call for help.
- (from @jasongrout): If you'd like to be a reviewer or triager, please put your github handle below. Typically we grant triage permissions rather liberally, and (actually, we don't have an official criteria for having merge permissions…this would probably be a good discussion at some point). Note that you can give reviews without having merge permissions, and we encourage you do so.
  - I'd like to be a reviewer — Jason Weill @jweill-aws
  - Jessica Xu @jess-x : Would love to be reviewer, have merge permission
  - Add me to the list - Piyush Jain @3coins
  - I would like to be a triager - Ely @ohrely
Darian
- Governance update: Software Steering Council
- Notebook 7 update: ProtoJEP, Draft JEP
  Please comments before next Friday meeting
Jason Weill
- Updating toc, toc-extension for RetroLab (new 3.2.x version being created by Steven S.?)
- My PR for retrolab: https://github.com/jupyterlab/retrolab/pull/275
- an example of a multi-level dev setup https://github.com/jupyter/accessibility
Mehmet
- Released JupyterLab Desktop v3.2.3-1
  - Support for custom Python environments in addition to the bundled environment. instructions
  - Upgraded to JupyterLab v3.2.3
  - Can we create a conda-forge package?
    - Nick says that having a conda package that contains its own environment is a no-go. If the package was changed to use the enclosing environment, that would be very different.
Jeremy:
- Enable Auto Merge? https://github.com/jupyterlab/jupyterlab/issues/11436
  - Documentation on GitHub
  - We'll have discussion on the issue, and try it out if a few people want to and no objections.
- On-going work on feature parity with the classic notebook, for example scrolling of outputs
  - Tweak CSS for scrolled outputs: https://github.com/jupyterlab/jupyterlab/pull/11478
  - WIP in RetroLab: https://github.com/jupyterlab/retrolab/pull/288
Eric
- Opinions on Add usage messages and request Usage method in the Kernel API?
  - related to https://github.com/jupyterlab/jupyterlab/issues/4012 and https://github.com/jupyter-server/jupyter-resource-usage/issues/31 ?
  - Like the debug messages, experimenting with this in jlab and ipykernel is the first step, next step is proposing an official kernel message in the kernel message spec.
  - Nick mentions these as resources to report on:
    - cpu
    - gpu
    - memory
    - file handles
Carlos
- ICurrentUser: new PR https://github.com/jupyterlab/jupyterlab/pull/11443
- RTC next steps: https://github.com/jupyterlab/jupyterlab/issues/11434
Nick
- Custom editor factories in retrolab
  - needs mad hacks e.g. replacing the editor, reinstantiating with _noref
Jason Grout
- Any update on the undo changes for 3.x? See https://github.com/jupyterlab/jupyterlab/issues/10791#issuecomment-945848216
  - https://github.com/jupyterlab/jupyterlab/issues/10928 was fixed
  - Solving the cell move with maintaining the history is a tough problem that needs to be tackled in yjs - Kevin is working on it (ETA 2 weeks)
  - There is a new issue on the undo of deleted cells issue which might be related: https://github.com/jupyterlab/jupyterlab/issues/11483 (?)
Martha
- Settings PR (https://github.com/jupyterlab/jupyterlab/pull/11079) is out of draft and Frederic gave review - more review is welcome! Or just extra testing

Additional discussions

JupyterLab 4.0 roadmap:
- GitHub project
- Spreadsheet

10 November 2021

Binder link: https://hub.gke2.mybinder.org/user/fcollonval-eafd-70f988a16017ba0-f6pl3xim/lab/tree/agenda.md?token=HYWKwP2SQI2kY2qkg4gG6w

Frederic
- Breaking API changes for 4.0:
  - RTC
  - Service Manager
  - BluePrintJS
  - …
  - Quid notebook 7?
    - Configurable shell.add
  - Performance - Windowed notebook
    - Search on model?
    - Remove ToC content preview?
    - Impact on heading collapsing?
- TBC Keyboard shortcut parity for TOC extension in classic and Lab
- New SidePanel #11369

Agenda

29 September 2021

https://hub.gke2.mybinder.org/user/fcollonval-eafd-70f988a16017ba0-9xfyupwt/lab/tree/agenda.md?token=HNeTTBhmRVuV_krQcbBohA

Agenda

22 September 2021

Binder link: https://hub.gke2.mybinder.org/user/jtpio-6ce263817-f1da4af742b7f72-nwi2tt0w/lab/tree/untitled.md?token=cotrlDUFTu2FDlgmbTny1A

Agenda

Jason
- Transferring https://github.com/wolfv/jupyterlab-dynext to the JupyterLab organization. See proposal at https://github.com/jupyterlab/team-compass/issues/129

15 September 2021

Attendees

Name	Affiliation	GitHub	Favorite semi-precious material
A. T. Darian	Two Sigma	@afshin	amber
William Stein	SageMath, Inc.	@williamstein	turquoise
Martha Cryan	IBM	@marthacryan
Jason Grout	Bloomberg	@jasongrout
Pete Blois	Google	@blois	tungsten
Karla Spuldaro	IBM	@karlaspuldaro
Mehmet Bektas	Splunk	@mbektas
Kevin Jahns	Yjs / Quantstack	@dmonad	clay
Steven Silvester	Apple	@blink1073
Jeremy Tuloup	QuantStack	@jtpio
Mithil Poojary		@mithil467	titanium
Rick McGeer	engageLively	@rickmcgeer	chicken-blood stone
Nick Bollweg	Georgia Tech	@nrbgt @bollwyvl	coprolite
Isabela Presedo-Floyd	Quansight Labs	@isabela-pf
Alex Bozarth	IBM	@ajbozarth
Frederic Collonval	QuantStack	@fcollonval
Mike	Oxford	@krassowski
Konstantin Taletskiy	Axle Informatics/NIH NCATS	@ktaletsk	emerald

Agenda

Martha
- Draft PR for settings ui https://github.com/jupyterlab/jupyterlab/pull/11079! I have a list of questions there if anyone could take a look
  Remove dependency on third-party library for ui-components
Jeremy:
- Feedback on extension authoring https://github.com/jupyterlab/jupyterlab/issues/11075
  - https://github.com/wolfv/jupyterlab-dynext is an interesting development to making extension development easier/lower barrier.
- The Jupyter Releaser works well with JupyterLab Extensions
  Image Not Showing Possible Reasons
  - The image file may be corrupted
  - The server hosting the image is unavailable
  - The image path is incorrect
  - The image format is not supported
  Learn More →
  (see cookiecutter config)
Frederic
- Remove old phosphor class to reduce CSS class stack (goal improve performances by reducing style computation complexity)
  - This implies upgrading @lumino packages to the next major version
  - Opportunity to update typescript
  - Need to wait for IPyWidgets v8 to be compatible to lumino
Mehmet
- Desktop App upgrade to JupyterLab 3.1.10 along with dev tooling upgrades
  - Generates GUI installers for macOS, Debian, Ubuntu, Red Hat, Fedora and Windows
  - Bundles a conda environment using Constructor
  - GitHub Actions integration
  - https://github.com/jupyterlab/jupyterlab_app/pull/191
  - Installers at https://github.com/jupyterlab/jupyterlab_app/actions/runs/1235190813
Konstantin
- JupyterLab LaTeX extension
- jupyterlab-latex 3.1.0 - federated extension now
- Becoming a maintainer?
  - +1 from @jasongrout to you becoming a maintainer for jupyterlab-latex - thanks! @blink1073 - I added you as a maintainer on the repo
- Incoming group of 5 Georgia Tech students working on Computer Science Junior Design Capstone project we proposed. Improvements to LaTeX experience in JupyterLab:
  - bibliography tools
  - journal templates repository
  - drag-and-drop support for plots and data frames from Jupyter notebook into the editor
  - simplified uploads of figures into the publications
  - UI to quickly create tables, equations and find mathematical symbols
- Discussion: do these features belong in the extension? Or is it something out of scope/should be in separate extension?
  - ~~CoCalc/Colab perspective: How do we support notebooks with bibliography (say) in a consistent way…?~~ (I thought this had to do with Jupyter notebooks, but it doesn't.)
Steve
- JupyterLab v3.1.12 - First fully automated stable release!
  - To learn how to use the releaser, good places are the configuration files for other repo: jupyterlite, voila
- JupyterLab v4.0.0a9 and JupyterLab v4.0.0a10 (in progress during meeting)
- Configurable Probot Binder link - opt-in, currently used in JupyterLab and Lumino

Additional discussions

Frederic
- benchmark tests
  - [Michal] It seems there is a bit of a jitter due to VMs with different processors being assigned. Would it be a good idea to try to divide the time by some performance score from a third-party benchmark of a processor and show it as "normalized score" in addition to time lapsed?
  - Another option is a self-hosted runner that only runs on push, maybe using our project AWS credits. https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners
    I think the best we can do is deal with the runner differences and have a large threshold for change, which is what this action does: https://github.com/rhysd/github-action-benchmark
    Follow up
    Image Not Showing Possible Reasons
    The image file may be corrupted
    The server hosting the image is unavailable
    The image path is incorrect
    The image format is not supported
    Learn More →
    change the logic to switch to manual to launch more experiments to improve statistical information by comparing the base node of the PR and the head (we want to be independent of the evolution of master).
- Sponsors: What about adding NumFocus sponsor badge on JupyterLab projects as conda-forge does? jupyter.org uses this link

8 September 2021

Note: Live notes for today's meeting will be on Binder

Max (gonna be 15-20 min late)
- yarn v3 upgrade!
  - almost done
  - https://github.com/jupyterlab/jupyterlab/pull/10929

1 September 2021

Note: Live notes for today's meeting will be on Binder

Previous Meeting Notes Archives

Oct 2019 - June 2020

https://hackmd.io/Uscrk0N1RhCtX-p6ZHUuWQ?view

July 2020 - Oct 2020

https://hackmd.io/P1Y_TM2WSxOENvQzWVsnvw?view

Nov 2020 - Feb 2021

https://hackmd.io/J13WIq4ZRDa2pHDH_6QuHw?view

Mar 2021 - Aug 2021

https://hackmd.io/T-2PcTqXRqiRbY6i61GHfw?view

Syntax	Example	Reference
# Header	Header	基本排版
- Unordered List	Unordered List
1. Ordered List	Ordered List
- [ ] Todo List	Todo List
> Blockquote	Blockquote
Bold font	Bold font
Italics font	Italics font
~~Strikethrough~~	~~Strikethrough~~
19^th^	19^th
H~2~O	H₂O
++Inserted text++	Inserted text
==Marked text==	Marked text
[link text](https:// "title")	Link
![image alt](https:// "title")	Image
`Code`	`Code`	在筆記中貼入程式碼
```javascript var i = 0; ```	`var i = 0;`	在筆記中貼入程式碼
:smile:		Emoji list
{%youtube youtube_id %}	Externals
$L^aT_eX$	L^aT_eX
:::info This is a alert area. :::	This is a alert area.

JupyterLab Weekly Meeting Minutes - Archive September 1 - December 22 2021

Future Meeting Note

Mar 2021 - Aug 2021

22 December 2021

Attendees

PRs needing review

Agenda

Additional Discussions

15 December 2021

Attendees

Agenda

Additional discussions

08 December 2021

Attendees

Agenda

Additional discussions

01 December 2021

Attendees

Agenda

Additional discussions

24 November 2021

Attendees

Agenda

Additional discussions

17 November 2021

Attendees

Agenda

Additional discussions

10 November 2021

3 November 2021

27 October 2021

20 October 2021

13 October 2021

6 October 2021

Agenda

29 September 2021

Agenda

22 September 2021

Agenda

15 September 2021

Attendees

Agenda

Additional discussions

8 September 2021

1 September 2021

Previous Meeting Notes Archives

Oct 2019 - June 2020

July 2020 - Oct 2020

Nov 2020 - Feb 2021

Mar 2021 - Aug 2021