# Matplotlib Weekly Meeting

[](https://hackmd.io/jd_7FjxNQ4y7XgNknvmvGQ)

**A regular sync meeting for the project's maintainers, which is open to the community.** Everyone is welcome to attend and contribute to conversations.

## 27 July 2023 -- February 15 2024

###### tags: `2023 dev call`

Call co-ordinates: Thursdays @ 21:00 Berlin time (20:00 UTC during winter, 19:00 UTC during summer) https://zoom.us/j/384435716?pwd=WFpxVWxoYXArTDFzN1lWaHNoOE8xZz09

Previous notes: [Meeting Agendas](https://hackmd.io/zljR-pZrQ0O5J_j4NZ-9yw)
Archive: [matplotlib/ProjectManagement](https://github.com/matplotlib/ProjectManagement)

#### [Needs discussion at some point](https://hackmd.io/uzWviu8zSUChq3XhI2FqPg)

#### [Medium sized projects](https://hackmd.io/GgtrcXTlTfuoyHO76_LMLg)

#### [RSE worklog](https://hackmd.io/@matplotlib/HyVoUHlSo)

2023-04-20 19:00:00+00:00
Europe/Berlin        2023-04-06 21:00:00+02:00
UTC                  2023-04-06 19:00:00+00:00
America/New_York     2023-04-06 15:00:00-04:00
America/Vancouver    2023-04-06 12:00:00-07:00
US/Hawaii            2023-04-06 09:00:00-10:00

# 15 Feb 2024

_attending_: @tacaswell, @ksunden, @story645, @timhoffm, @QuLogic

## Agenda

### Old business

- [x] RSE reports
- [x] 3.9 progress
- [x] scipy tutorial planning

### new business

- [x] 3.7 and 3.8 micro release

### PRs
- [ ] [name=hannah] [violinplot color API](https://github.com/matplotlib/matplotlib/pull/27304)

## Notes
- start new notes for next week
### RSE reports
- Kyle
- 3.8.3 tagged out out the door
- 3.7.5 release in the works
- dataprototype work

- Tom:
- some triage / review work
- data prototype meetings
- Elliott
- video work in the docs
- now 2 projects deeps
- will do 3.7.5 today

### scipy tutorials
- asked scipy chair for what they want -> want interactive
- https://github.com/matplotlib/interactive_tutorial exists and likly still works
- keep stucture from last year, but change focus
- move from just building up grid, focus on concepts
- @story645 has some ideas / material on interactive as well

### 3.9 status

- still looking good for RC in March

### violinplot colors

- (color, facecolor, edgecolor) like bar vs. parameter dict violinprops like boxplot
- consensus: facecolor + edgecolor, and add alpha, vectorize facecolor

# 08 Feb 2024

_attending_: @ksunden, @tacaswell, @efiring, @timhoffm, @IGuKs80UTJCig4yt6Zos7w (greglucas), @story645, @shriyakalakata, @QuLogic

## Agenda

### Old business

- [x] RSE reports
- [x] 3.9 progress reports

### New business
- [x] [name=ksunden] Locking down/deleting the Github wiki
- [x] [name=greglucas] Scipy plans https://www.scipy2024.scipy.org/

### Issues and PRs
- [x] [name=QuLogic] [bump minimum NumPy requirement](https://github.com/matplotlib/matplotlib/pull/26800)
- [ ] [name=hannah] [using labels for "don't merge"](https://github.com/matplotlib/matplotlib/pull/27668)
- [ ] [name=hannah] [usage content guide](https://github.com/matplotlib/matplotlib/pull/26389)
- [rendered page](https://output.circle-artifacts.com/output/job/4770a68d-dcb5-446e-8ca5-b58000f4e974/artifacts/0/doc/build/html/devel/document_content.html)

## notes
### RSE updates
- Kyle
- data prototype work: integrating ideas with drawing stack, playing with very simple layers
- worked on OSX hang issues (with Tom and Elliot)
- general maintence
- GSOC
- Elliott
- 3.9 progress
- getting CI PRs up and working
- closed the last deprecation removal PR
- change laptop back to linux
- Tom
- osx bug, other review
- paper work
- now have a windows VM that can test on

### 3.9 progress?
- making progress
- still looking good to hit March
- please review pybind11 PRs

### wiki
- was world writable
- locked down now
- do we want to keep at all?
- can we archive it?
- either add it to an exsiting one (project managment)
- add git repo that backs it to org and then mark as public archive
- seem to only use it for GSOC ideas / propsoals
- have a duplicate copy of MEPs
- propsoal (accepted with no prost)
- upload and public archive repo
- removing from GH
- never talk about again
- will have to change this years GSOC links

### scipy plans

- do we need to submit stuff
- sprints: probaly not
- tutorial: need to get something in on time (Feb 27)
- re-run the layout one from last year (if Kyle leads)
- talk:
- data work (still thinking)
- going
- Greg
- Kyle
- Hannah (maybe)
- Elliot (if we have funding)

### numpy version

- in March we should be Python 3.9 / numpy 1.23
- jump 2 numpy versions and get back on track
- for numpy 2.0 things built with 2.0 will work with numpy 1.x but things built with 1.x will not work with 2.0
- should be able to just build everything with 2.0 and not worry about oldest supported

### no merge on labels

- no runs with on premissions
- but needs to pass if it should not block merging

### content guide

Caswell would like to push content guide until Jody is here

# 01 Feb 2024

_attending_:
@tacaswell @ksunden @story645 @QuLogic

## Agenda

### Old business

- [x] final decision on GSOC
- [x] RSE reports
- [x] 3.9 progress reports

### New business
- [x] [name=hannah] [using labels for "don't merge"](https://github.com/matplotlib/matplotlib/pull/27668)

### Issues and PRs
- [ ] [name=QuLogic] [bump minimum NumPy requirement](https://github.com/matplotlib/matplotlib/pull/26800) (to next week)
- [x] [name=hannah] [user/project to project](https://github.com/matplotlib/matplotlib/pull/27560)
- [ ] [name=hannah] [usage content guide](https://github.com/matplotlib/matplotlib/pull/26389) (to next week)

## notes

### memory leak test

- takes around 200 iterations for memory usage to "burn in"
- this takes at least 50 seconds
- our tests with a burn in of 2 and test of 5
- we will rip the test out and open an issue for new weekly test to check memory

### azure failures

- add manual timeout to popen test
- add retry to these tests?
- maybe related to xvfb issue like hang during collection?

### GSOC
- ask NF for 1 slot
- visual search project
- concern that this is would be an acceptable GSOC project

### RSE reports
- Tom: reviews, little bit of testing improvements, meeting with Kyle tomorrow to talk about NASA
- Kyle:
- data prototype project
- trying to actulaly use prototype
- Elliott:
- CI work (m1s are now available on github)
- documentation work
- change animation format from list of frames to actual video
- saves space!
- work upstream with sphinx gallery
- some examples may see 20x reductions
- costs us frame-by-frame playback

### 3.9 progress

- still making progress
- need to discuss
- numpy bump
- linear rescaling of marker size

### don't merge via labels

make it possible to label as "this needs discussion" differently from "I have specific code changes"

# 25 Jan 2024

_attending_: @rcomer, @ksunden, @qulogic, @tacaswell, @story645

### Old business
- [x] RSE reports
- [x] 3.9 progress report

### New business
- [x] GSOC: numfocus deadline is Feb 5th
- [ ] https://github.com/numfocus/gsoc/tree/master/2024
- [ ] https://summerofcode.withgoogle.com/programs/2024
### Issues and PRs
- [x] [Make singular colorbars consistent with single-value mappables.](https://github.com/matplotlib/matplotlib/pull/26307)
- [x] [Add `U`, `V` and `C` setter to `Quiver`](https://github.com/matplotlib/matplotlib/pull/26410) - API question on setter for UVC/data/offsets
- [x] [Add widths, heights and angles setter to EllipseCollection](https://github.com/matplotlib/matplotlib/pull/26375) - getters?
- [ ] [Added optional props argument to Lasso Widget `__init__` to customize Lasso line](https://github.com/matplotlib/matplotlib/pull/26594)
- [ ] [Fix

legend entries](https://github.com/matplotlib/matplotlib/pull/27568)
- [ ] [Fix behaviour of Figure.clear() for SubplotParams](https://github.com/matplotlib/matplotlib/pull/27183)
- [ ] [Allow linear scaling for marker sizes in scatter](https://github.com/matplotlib/matplotlib/pull/25259)

## notes

### RSE updates
- Kyle:
- work on data prototype work
- re-thinking how to manage and optimize the graph of computations
- small PRs / review
- Elliott
- smallish review things
- have windows on arm working
- mostly just worked, pushed freetype back to our old version.
- only see timeouts on interacitve tests (maybe resources due to paralle)
- did not need any extra tolerances
- have a PR for linting + validtion of all of our yaml
- prevents a class of bugs, some issues with source of schemas
- should catch errors in yaml that are currently only caought by running on main after merge
- Tom
- data prototype work
- EffVer PR
- some review

### mpl3.9
- making steady progress
- bunch of PRs on todays agenda
- jupyterrfb?
- maybe not for 3.9
- small quality of life stuff needs to be merged upstream (cursors + rubber band)
- still have to work out restart / stop / snapshot
- likely due to us wrapping it in additional widgets (box + toolbar) so snapshotting looks wrong

### GSOC

- do we have good projects?
- hatch API?
- not great because API design is hard
- heigharchical ticks
- same problem
- reach out ot multi-variate colormap contributor
- who has effort?
- kyle

# 18 Jan 2024
_attending_: @QuLogic, @ksunden, @tacaswell, @ianthomas23, @greglucas, @anntzer

## Agenda

### Old business
- [x] RSE reports
- [x] 3.9 progress report

### new business

- [x] backend + ipython https://github.com/matplotlib/matplotlib/issues/27663
- [x] adopt EffVer https://jacobtomlinson.dev/effver/
- [x] [name=hannah] [violinplot color parameters](https://github.com/matplotlib/matplotlib/pull/27304)
- [x] [name=hannah] [stream plot n_arrow](https://github.com/matplotlib/matplotlib/pull/27617)
- [ ] [name=greglucas] macos warning out of our control? ([27389](https://github.com/matplotlib/matplotlib/issues/27389))
- [ ] start next weeks note -> date + field at end of meeting

## Notes

### RSE updates
- Kyle:
- preperations for pytest8+ numpy2
- design work on data prototype
- tom:
- general issue review + prototype supportwork
- elliott:
- pybind11 work
- working on window-on-arm test machine setup again

### 3.9 progress

- still have a couple of deprecation removals outstanding
- finish PRs from new contributors
- some PRs that are adding new deprecations we might want toget in
- put on agenda for next week

### EffVer

Better description of what we currently do

"stamping current policy with better name"

### parameters in violiplot

should we do it like `ax.bar` or `ax.boxplot`

### ipython + Matplotlib integration

- `%matplotlib` can be used to select backends
- list of supported backends currently hard-coded into ipython
- includes built in Matplotlib backends
- and 2 jupyter specfic backends
- includes a mapping from backend <-> gui framework
- odd that the hard-coded backend lives in IPython
- how do we support external backends
- use entry points for backends to declare them selves
- could put this in IPython and problem most locally
- better solution is registry to live in Matplotlib
- supports entry-point registraion
- supports hard-coded ones we ship
- support `module://` as well

comments
- IPython `%matplotlib ...` could support `'module://'` as input
- concern about `%matplotlib` doing surprising imports
- concern about alias
- no alias scheme
- order of lookup
- builtin names (maybe include all current names (inline, widgets, notebook))
- entrty points
- if collisions fail hard and ask to uninstall one
- should make IPython respect the `required_interactive_backend`

do we want to try and seperate GUI selection + renderer selection
- yes, but does not currently factor nicely
- some agg specific assumptions in the source

### need help with mplcairo

- sort out why not compatible with mpl3.9
- can we move mplcairo into mpl-main to replace exsiting cairo
- depends on how we want to load cairo
- we may need to build cairo for wheel
- mplcairo currently depends on pycairo to steal their
dll/so
- some extra text handling
- one is cairo's font handling
- one is based on raqm
- maybe try to do this with a SDG

# 11 Jan 2024

__attending__:
## Agenda

### Old Business

### New Busines
- [] RSE reports
- [] 3.9 target date

### Issues and PRs
- [ ] [name=QuLogic] https://github.com/matplotlib/matplotlib/pull/27310
- [ ] [name=greglucas] [QuadMesh nan vertices](https://github.com/matplotlib/mplcairo/pull/54) Different backends treat the quads differently. Would we want to assert anything in how this is handled?

## notes

### RSE updates
- Kyle: catching up after 2 weeks off
- Elliott: catchup, looking at CI
- finishing up autopublishing
- trying to get labelling working
- Tom: issue / PR review, busy with other work

### Issues
- https://github.com/matplotlib/matplotlib/pull/22699
- merged
- https://github.com/matplotlib/matplotlib/pull/27310
- meant to leave comment last week, now posted
- https://github.com/matplotlib/mplcairo/pull/54
- we should let quadmesh and the functions that call them take `np.nan` in x/y
- should poison entire quad that the nan is in
- https://github.com/matplotlib/matplotlib/pull/27563
- merged
- https://github.com/matplotlib/matplotlib/pull/27624
- needs a bit more work
- https://github.com/matplotlib/matplotlib/pull/27618/
- switch back to py39
- remove broken to prove broken commit
- https://github.com/matplotlib/matplotlib/pull/27552
- need to add note about how to run with `python -m pytest`
- https://github.com/matplotlib/matplotlib/pull/27230
- @IGuKs80UTJCig4yt6Zos7w will look at
- discussion about managing font caches
- ensure that cache is generated docs
- add a CLI to font manager to help with cache genartion / clearing / locating
- maybe add a mode to only use fonts we shpsic

# 4 Jan 2024
@tacaswell @story645 @QWhXj01mSwmTjk5kN1H_qQ (@efiring) @IGuKs80UTJCig4yt6Zos7w (@greglucas) @QuLogic
## Agenda

### Old Business
- [x] Meeting time discussion

### New Busines
- [x] RSE reports
- [x] 3.9 target date
- [ ]
### Issues and PRs

- [x] [name=QuLogic] https://github.com/matplotlib/matplotlib/pull/27310
- [x] [name=Hannah] [Content guidelines](https://github.com/matplotlib/matplotlib/pull/26389)
- [ ] [name=greglucas] [QuadMesh nan vertices](https://github.com/matplotlib/mplcairo/pull/54) Different backends treat the quads differently. Would we want to assert anything in how this is handled?

## notes

### meeting discussion

- hour earlier slightly better in poll, but keep same time for now
- split triage discussion from broader discussion
- 1st & 3rd policy
- 2nd & 4th triage
- RSE reports have been very helpful

### RSE updates
- Tom: issue review + PRs
- Elliott: off last week
- Kyle: off

### 3.9 release
- @QuLogic release manager
- target march
- when is numpy 2.0 targeted to
- https://github.com/numpy/numpy/issues/24300
- do a 3.8.x along with numpy's 2.0 rc to drop the pin
- this lets us de-couple mpl3.9 from numpy2.0
- rcs in late Feburary
- beat Fedora beta-freeze with our RC (by Feb 20)

### Docs

- link back to diataxes in each section
- break out user guide into start-> build -> create

### SymLog

# 21 Dec 2023

## Agenda

### Old Business
- [x] Meeting time discussion

### New Busines
- [x] RSE reports
- [x] data prototype slides
- [x] pydata armenia sprint?
- [x] next week?

### Issues and PRs

## Notes

### introductions

### pydata sprint

- in person or virtual?
- monthly meetups
- yearly conferenece

@tacaswell will reach out to EU based maintainers to see if anyone is interested.

### meeting timing discussion

- 2pm did a bit better than 3pm (times in NY)
- what is "best time" without HI?
- table till more people

### next week
- cancel meeting

### RSE updates
- Elliott
- pushed on replacing transforms with eigen
- found what to check to see if it works
- held up on waiting for our path extension to be converted to pybind11 to avoid np conversions
- automation work on website
- looking at trusted publisher
- move to new artifacts action + trusted publisher
- Kyle
- general PR review
- prep slides for this meeting
- some thoughts about dataprototype
- Tom
- PR / issue review
- data prototype + slides

### trusted publisher
- github + pypi collaboration
- can set up a workflow on GHA to be trusted by pypi to do uploads directly rather than going through a release manager
- no shared secrets we manage

### data prototype

----
# 14 Dec 2023

attending: @ksunden @story645 @oscargus @jklymak, @QuLogic

### Old Business
- [ ] Meeting time discussion
- https://whenisgood.net/22qgxi3/results/bb7san5
- Thurs 2:00PM (EST) seems to be the current fave

### New Business
- [ ] RSE reports
- [ ] [name=hannah] GSOC 20th anniversary
- https://opensource.googleblog.com/2023/11/google-summer-of-code-2024-celebrating-20th-year.html
- For the 2024 program, there will be three options for project scope:
- medium at ~175 hours
- large at ~350 hours
- new size: small at ~90 hours

### Issues and Prs
- [name=hannah] [move {install/project/releases} out of users/](https://github.com/matplotlib/matplotlib/issues/27396)
- follows from [moving doc root](https://github.com/matplotlib/matplotlib/pull/26332), `match(folder structure, index)`
- as consequence user/ can be sphinx gallery containing explain & getting started, which means no more symlink (which creates confusion of what to edit)
- [name=hannah] https://github.com/matplotlib/matplotlib/pull/27265

## Notes

### RSE reports
- @tacaswell:
- PR review
- @ksunden: no data type report until he returns.
- sprints pydata global. Most of datetime tests in. Though odd so many don't work.
- datetime64: tri: not formatted;
- streamplot - timedelta64 doesn't work? Should it? units of velocity. arrow
- working on data type report concepts
- @QuLogic
- transform stack work
- small numpy arrays expensive: C++ class?
- add tests to make that robust
- Has class working
- pybind11 has eigen helpers
- needs access to elements for some transforms
- Path C++ extension not on pybind11 yet. Injects numpy
- Release automation
- docs use JS/HTML instead of html5 animations
- no video controllers in html5
- sphinx gallery reset of rcParams: uses installed library defaults, so changing .matplotlibrc doesn't work.
- will open PR to SG to do correct thing
- timeouts/space limits
- but we set higher
- above should fix

### GSOC:
- https://opensource.googleblog.com/2023/11/google-summer-of-code-2024-celebrating-20th-year.html
- 20th anniversary
- New lowest 90h project level
- anyone interested in mentoring?

### Meeting time:

- 14:00 EST favourite time.

### Issues and PRs
- move users/* up to doc/

-----

# 7 Dec 2023

## Agenda
@attending: @tacaswell @efiring @QuLogic @ksunden @jklymak @chahak @pXw4hSgTQF2--OciPYwa1w

### Old Business
- [x] Meeting time discussion
- https://whenisgood.net/22qgxi3
- [x] [name=QuLogic] Move `Contribute` to devdocs?
- Review for change is here: https://github.com/matplotlib/matplotlib.org/pull/36
- Test server is at: https://mercury.matplotlib.org/stable/

### New Business
- [x] RSE reports
- [x] how to inject units

### Issues and PRs
- [x] [name=hannah] dev docs prs
- [x][move dependencies to install](https://github.com/matplotlib/matplotlib/pull/27395)
- [x][finish out reorganizing devdocs](https://github.com/matplotlib/matplotlib/pull/27265)
- [x][add collection-fontsrecommend](https://github.com/matplotlib/matplotlib/pull/27282)
- [x] [name=hannah] [matplotlib.org: make contributing more prominant](https://github.com/matplotlib/matplotlib/pull/27282)
- [x] [name=hannah] [patheffects rcParam + xkcd style](https://github.com/matplotlib/matplotlib/pull/26854)

## Notes

- RSE notes:
- @ksunden: test datetime PRs, some data protoype work.
- @tacaswell: CZI grant in w Elliott and Eric
- @QuLogic: Grant. test datetime PRs
- Inject units:
- conversion nodes for pipeline of data
- delayed conversion node; when querrying data supplies converter.
- Maybe a 15 minute short presentation for next week @ksunden
- Something like dask maybe to general purpose for what we are after
- linear call graph
- lazy evaluation
- caching
- ordering
- enforce input/output on methods
- transform stack in pipeline (probably?)
- maybe some optimizations
- Meeting time discussion
- tabled until next week
- Redirects on contribute to devdocs
- test server can try it
- merged @QuLogic will redeploy main webpage
- moving dependencies under install instead of devel
- https://github.com/matplotlib/matplotlib/pull/26854 Path effects
- parse patheffects as list of tuples
- third party patheffects?
- requires import?
- can't validate patheffect method name
- https://github.com/matplotlib/matplotlib/issues/27228
- reasonably dueable to go through shared axes of the one being interacted with
- find each axes parent and call push tool bare on their toolbars
- when pushing "back on figure 1"
- do we just add another thing to the stack
- move "back" on the other figure

----

# 30 Nov 2023

_attending_: @tacaswell @rcomer @chahak @ksunden @story645 @jklymak

## Agenda
- [x] RSE reports
- [x] discussion about moving time of standing meeting
- [x] [name=hannah] [PyData Global](https://pydata.org/global2023) sprints Dec 6-8

### Issues and PRs
- [x] [name=hannah] [stix license](https://github.com/matplotlib/matplotlib/pull/27316)
- [x] [name=jklymak] Move `Contribute` to devdocs?
- redirect? Separate repo?
- [ ] Roadmapping:
- mplgui
- way forward with baseline images
- other larger things we should be pushing for?

## notes

### RSE reports
- Kyle: travel / vacation,
- some data prototype work
- adding api to explicit set converter to Axis
- Tom: travel / vacation
- work on grant
- Elliott:
- working on code coverage for msvc
- doc work for redirects
- bit of work on grant

### Meeting time
- annual re-evaluation
- @story645 will email to devel mailing list + discourse a survey
- discuss again in 2 weeks

### pydata global sprints
- online / remote only
- @ksunden will run our test coverage adding issue again

### STIX license
- @tacaswell will look at this carefully

### moving contribute out of main docs

options:
- redirect from stable/contirbute -> devdocs/contribute
- move whole tree to separate repo
- cons: hard to maintain, confusion of what part of the docs come from where
- pro: makes sperations of concerns very clear
- point navbar link to point to devdocs
- con: hard-coded urls are not great

Need to do another pass to make sure we do not have any version dependent information
in tree.

conclusions
- @QuLogic will add in redirect
- run changing links in navbar
- keep thinking about if we should clave off into own repo

### roadmapping
- mplgui
- mostly done
- try to release on own
- target merging for 3.10?
- interaction with jupyter?
- include in CZI grant + jupyter rfb
- baseline images
- stuck in @tacaswell 's head
- refactoring axes/axis
- rethink formatters / locators / tickers
- go to tick collections instead of just ticks
- have the major + minor locators/formatters be aware of each other
- generalize to do multi-level locators/formatters
- rationalize access to to sub-parts
- blit manager
- partial prototype exists
- performance issues
- axes creation is super slow (ticks)
- text
- caching

### discussion of units test coverage work

- some things just don't work and need to be documented (deltas in arrow)
- found some real bugs (axlines)

-----
# 23 Nov 2023

## Agenda
- [ ] US thanksgiving

# 16 Nov 2023

_attending_: @tacaswell, @efiring, @ksunden, @QuLogic, @story645

## Agenda
- [x] RSE updates
- [x] multi-line tags
- [ ] bug fix release

## Notes

### RSE updates
- Kyle:
- work on dataprototype
- shape validation thinking + implemenation + tests
- working on getting 3.8.2 out the door
- one final PR with contours
- Elliott
- sick this week
- waiting on follow up for igraph
- webagg + jupyter RFB
- found a bug in playwrite
- will be putting in issues to upstream jupyter RFB
- Tom
- no mpl-gui work
- working on making sure we are future proof

### multi line for tags
- with many tags, can end up violating line length
- multi-line tagging is a good idea, but not upstream yet

### 3.8.2 and 3.7.4

- xkcd script
- version from ipython repo is good enough
- @story645 now has commit rights upstream
- contour label
- PR coming
- wheel building for 3.7.4
- may need to backport a couple more things
- pin setuptools on azure
- fix pinning on numpy on 32bit builds (or drop builds)

# 09 Nov 2023

## Agenda
_attending_ : @tacaswell @ksunden @chahak @efiring, @raphaelquast, @story645, @devRD,

### New business
- [x] RSE reports
- [x] GSOD update

### Old business

### Issues and PRs
- [x] [name=raphaelquast] [overlapping axes](https://github.com/matplotlib/matplotlib/pull/27148)
- [ ] [name=raphaelquast] webagg improvements: [27160](https://github.com/matplotlib/matplotlib/pull/27160)
- [ ] [name=hannah] [humor sans to xkcd](https://github.com/matplotlib/matplotlib/pull/27299)
- fork font? https://github.com/dummy-index/xkcd-font/raw/brushup/xkcd-script/font/ <-unmaintained fork
- [ ] [name=hannah] [path/xkcd](https://github.com/matplotlib/matplotlib/pull/26854#issuecomment-1804098144)
- deperecate xkcd? interaction with [sketch seed](https://github.com/matplotlib/matplotlib/pull/26050)

## Notes

### RSE updates
- Kyle
- tracked down segfault with py312
- data prototype work
- Elliott
- Tom
- some mpl-gui work

### GSOD update
- met deliverables
- writing up case study + blog post to close out project
- will keep an open doc meeting going
- bi-weekly or monthly
- remove from standing agenda starting next week

### webagg
- add feature as a go fast opt in, use string to denote alogorithm choice for flexibility

#### xkcd
- @tacaswell will talk to ipython about merging font
- make plt.xkcd discouraged rather than deprecated

# 02 Nov 2023

## Agenda
_attending_ : @greglucas, @story645, @rcomer , @efiring, @tacaswell, @ksunden, @qulogic,

### New business

- [x] RSE reports
- [x] GSOD update
- https://matplotlib.org/devdocs/devel/tag_guidelines.html
- https://matplotlib.org/devdocs/devel/tag_glossary.html
- [x] invited for full CZI EOSS6 propsoal

### Old business

- [x] RFB update
- [ ] [name=tacaswell] mpl-gui

### Issues and PRs
- [ ] [name=jklymak] [Logging versus warning vs...](https://github.com/matplotlib/matplotlib/issues/23422) and for [legend](https://github.com/matplotlib/matplotlib/issues/27145)
- general: should we warn on valid input?
- what should we name the warning if we do?
- should warnings be toggleable?
- general: should we use logging at all?
- specific: should this particular instance (all numeric strings that get passed to categorical) get a message at all?
- [ ] [name=oscargus] [Typing of values ending up in Text](https://github.com/matplotlib/matplotlib/pull/26867)
- Text converts to str independent of input data
- Type as Any, document as str as @timhoffm suggests? (Makes sense to me.)
- [ ] [name=oscargus] [set/get_linestyle and dashed and ...](https://github.com/matplotlib/matplotlib/pull/23056)
- If I have time to prepare a presentation and @timhoffm is present
- [ ] [name=oscargus] [Symlog hexbin](https://github.com/matplotlib/matplotlib/pull/22718)
- Review needed, long waiting (make sure it is squash-merged)
- [ ] [name=rcomer] [Absolute values for pie](https://github.com/matplotlib/matplotlib/pull/25757) what should parameters be?

## Notes

### RSE updates
- Kyle:
- 3.8.1 tagged and out
- starting to work on NASA data stuff
- Elliott
- follow up from last work (docs, notebook/web backend)
- still a few kinks in RBF (mostly snapshot on save)
- all of toolbar but download button is working
- Tom
- met with Kyle on NASA data prototype
- work on mpl_gui
- pydataNYC sprints

### GSOD
- sprints at pydataNYC
- have built tag guidelines and glossary
- got spreadsheet of tags via sprint, will convert to a PR
- still working out best way to do that
- Eva has notes about how to improve docs based on volunteers using them
- meeting tomorrow for next steps

# 26 Oct 2023

## Agenda

_attending_: @tacaswell @trygve @devRD @ksunden @rcomer @IGuKs80UTJCig4yt6Zos7w (greg?) @chahak, @timhoffm, @story645

### New Business

- [x] RSE reports
- [x] GSOD
- [x] [name=QuLogic] Jupyter-RFB proof of concept

### Issues and PRs

- [x] [name=hannah] [standard internal variable name for transforms](https://github.com/matplotlib/matplotlib/issues/22156)
- do we want to standardize? if so which names? document this?

## Notes
- intros

### RSE reports

- kyle
- PR review
- 3.8.1 prep
- went to xarray dev meetings for `NamedArray` pulled out (xarray variable pulled out with less dependencies)
- Elliott
- docs things
- 3.8.1 prep
- proof-of-concept using jupyter RFB
- pybind11 conversion

### jupyter RFB
- jupyter notebook 8 breaks nbagg
- never worked in jupyterlab, now broken in normal notebook
- we did less than secure things to inject our js + comms
- RFB (remote frame buffer) will send you back user input, you send it bytes
- have a working prototype, only a few hundred lines
- questions
- do we want to have this in main library?
- do we want to push this to ipympl?
- drop our notebook integration altogether and just rely on?
- how does js get served in jupyter?
- do versions in the server env and kernel envs have to match?
- js is installed in server side independent of the Python version in the kernel
- but matching can be a range

### GSOD
- going well
- need to get PR merged by Tuesday for the sprint (so we can point at devdocs)
- tagging guidelines: https://github.com/matplotlib/matplotlib/pull/26851
- how tags look in gallery: https://github.com/matplotlib/matplotlib/pull/27083

### issues
- absolute pie values formatting
- not a 5 minute conversation because the holding point is naming / parameters
- standardize names
-

# 19 Oct 2023

## Agenda

_attending_: @rcomer, @ksunden, @chahak, @jklymak, devRD, @melissawm esibinga, @story645, @efiring, @QuLogic

### New Business

- [x] RSE reports
- [x] GSOD
- [x] Zenodo citation

### Issues and PRs
- [x] [name=ksunden] [hexbin mincnt](https://github.com/matplotlib/matplotlib/issues/27103)
- [ ] [name=jklymak] [Logging versus warning vs...](https://github.com/matplotlib/matplotlib/issues/23422) and for [legend](https://github.com/matplotlib/matplotlib/issues/27145)
- general: should we warn on valid input?
- what should we name the warning if we do?
- should warnings be toggleable?
- general: should we use logging at all?
- specific: should this particular instance (all numeric strings that get passed to categorical) get a message at all?
- [ ] [name=oscargus] [Typing of values ending up in Text](https://github.com/matplotlib/matplotlib/pull/26867)
- Text converts to str independent of input data
- Type as Any, document as str as @timhoffm suggests? (Makes sense to me.)
- [ ] [name=oscargus] [set/get_linestyle and dashed and ...](https://github.com/matplotlib/matplotlib/pull/23056)
- If I have time to prepare a presentation and @timhoffm is present
- [ ] [name=oscargus] [Symlog hexbin](https://github.com/matplotlib/matplotlib/pull/22718)
- Review needed, long waiting (make sure it is squash-merged)
- [ ] [name=hannah] [standard internal variable name for transfroms](https://github.com/matplotlib/matplotlib/issues/22156)
- do we want to standardize? if so which names? document this?
- [x] [name=hannah] maybe sprint/good-first-issue project: [quoted rcParams](https://github.com/matplotlib/matplotlib/issues/3670)

## Notes

### RSE reports
- @ksunden: pytest with meson; lots of issues with that are not compatible with each other. In particular how editable installs work.
- not able to find pyc files
- have work arounds that are being worked around
- `pytest` versus `python -m pytest`
- hexbin mincnt parameter
- 3.8.1
- @QuLogic
- pybind11
- website issues; proper redirects
- real redirects instead of html files. Canonical is set; maybe sitemap could be autogenerated

### GSOD
- tagging sprint beginning Nov.
- categories and subcategories
- google spreadsheet tagging workflow
- 1/3 tagged for examples before sprint

### Zenodo citations
- now generic, doesn't pull from github anymore
- github stats run anyways on milestone
- maybe pull and populate cff file

### hexbin
- `mincnt` comparison `>` to `>=`, `mincnt=0`, some reduction functions error
- default reduction is `mean` but returns nan. `max` returns error.
- solutions:
- go back to `>`
- make default 1
- make default change with functions depending on their behaviour
- decision: make default 1, update docstring to clarify that users can set to 0

### quoted rcParams

See https://github.com/matplotlib/matplotlib/issues/3670#issuecomment-1771672120

-----

# 12 Oct 2023

_attending_: @rcomer, @tacaswell, @efiring, @ksunden, @jklymak, @devRD, @QuLogic, @trygve, @story645

### Agenda

### Old Business

### New Business

- [x] RSE reports
- [x] GSOD

### Issues and PRs
- [x] [name=jklymak] [contour: allsegs, alltypes](https://github.com/matplotlib/matplotlib/issues/26913) remove depreaction?
- [x] [name=jklymak,anntzer] [access to colorbar's formatters/locators](https://github.com/matplotlib/matplotlib/issues/26896)
- [ ] [name=oscargus] [Typing of values ending up in Text](https://github.com/matplotlib/matplotlib/pull/26867)
- Text converts to str independent of input data
- Type as Any, document as str as @timhoffm suggests? (Makes sense to me.)
- [ ] [name=oscargus] [set/get_linestyle and dashed and ...](https://github.com/matplotlib/matplotlib/pull/23056)
- If I have time to prepare a presentation and @timhoffm is present
- [ ] [name=oscargus] [Symlog hexbin](https://github.com/matplotlib/matplotlib/pull/22718)
- Review needed, long waiting (make sure it is squash-merged)
- [x] [name=hannah] [mypy pre-commit hook](https://github.com/matplotlib/matplotlib/pull/26954)
- was there consensus last week?
- [x] [name=hannah] [list of dicts path.effects param](https://github.com/matplotlib/matplotlib/pull/26854)
- feedback on whether this is feasable
- [x] pytest + meson conflict?

## Notes

### RSE reports
- @ksunden data prototyping;
- scatter prototype.
- 3.8.1 release close; couple of RC
- @QuLogic
- pybind 11
- EOSS grant
- @tacaswell
- EOSS grant
- MPL GUI now has pyplot-like module; docs forthcoming

### GSOD
- going well
- Eva is doing more tagging
- working on a sample page with melissa

### Issues and PRs

- mypy precommit
- Remove deprecate allsegs, find_nearest_contour... @jklymak will PR
- "long_axis" exposed as a read-only property. @jklymak will PR
- patheffects: dictionary cannot have "name" as it can possibly conflict with a keyword to patheffects classes that may be called "name".
- meson and pytest: not consulting result source code
- pytest not consulting metapath?
- try passing `--import-mode importlib`

------

# 5 Oct 2023

## Agenda
_attending_: @tacaswell, @jklymak, @ksunden, @haoyingzhang, @efiring, @melissawm, @devRD, @trygve, @story645, @timhoffm, @QuLogic

### Old Business

### New Business
- [x] RSE reports
- [x] GSOD:
- https://github.com/matplotlib/matplotlib/pull/26851
- https://pydata.org/nyc2023/about/ Oct 31st
- [x] [name=hannah] hacktober policy

### Issues and PR:

- [x] [name=jklymak] [contour: allsegs, alltypes](https://github.com/matplotlib/matplotlib/issues/26913) remove depreaction?
- [x] [name=jklymak,anntzer] [access to colorbar's formatters/locators](https://github.com/matplotlib/matplotlib/issues/26896)
- [x] [name=jklymak] mpl-gui? https://github.com/matplotlib/mpl-gui
- [ ] [name=oscargus] [Typing of values ending up in Text](https://github.com/matplotlib/matplotlib/pull/26867)
- Text converts to str independent of input data
- Type as Any, document as str as @timhoffm suggests? (Makes sense to me.)
- [ ] [name=oscargus] [set/get_linestyle and dashed and ...](https://github.com/matplotlib/matplotlib/pull/23056)
- If I have time to prepare a presentation and @timhoffm is present
- [ ] [name=oscargus] [Symlog hexbin](https://github.com/matplotlib/matplotlib/pull/22718)
- Review needed, long waiting (make sure it is squash-merged)
- [x] [name=hannah] [mypy pre-commit hook](https://github.com/matplotlib/matplotlib/pull/26954)
- [x] [name=hannah] [axisartist tables](https://github.com/matplotlib/matplotlib/pull/26754)
- grid tables vs list tables
- [ ] [name=hannah] [list of dicts path.effects param](https://github.com/matplotlib/matplotlib/pull/26854)
- is this a viable direction to go in?
- [x] [name=ratna] Review needed.. [Stix table update](https://github.com/matplotlib/matplotlib/pull/26830/)
- [x] [name=haoying] [QuiverKey error](https://github.com/matplotlib/matplotlib/issues/26316/)
- Clarification of ``angle`` in [doc](https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.quiverkey.html)

## Notes

### RSE reports:
- @tacaswell:
- CZI letter of intent getting in, indicating new things to do, and carrying on current work
- test image work plans
- @ksunden:
- PR review; clabel for low dpi issue
- hacktoberfest PRs
- @QuLogic
- meson merged for building.
- pybind11 - agg
- @melissawm
- coming back from holidays. Now on volunteer basis versus

### GSOD
- refactoring based on feedback
- tagging sprint Oct 31. +general Matplotlib sprint pydata NY.
- https://github.com/matplotlib/matplotlib/pull/26851 review

### bivariate colormapping. https://github.com/matplotlib/matplotlib/pull/26996
- 2d colormaps versus multivariate
- VectorMappable instead of Scalar mappable
- pcolormesh implimentation.
- list of further changes.
- Is this way good?
- how to roadmap it?
- needs specific colormaps?

### Quiver Key

- angle degrees anti clockwise from x axis versus horizontal

### hacktoberfest

- flag one liners or treat as normal
- _usually_ one liners are welcomed.
- Treat as normal. Don't label, just close
- formatting changes OK

### MPL GUI
- attach GUI after figure made rather than figure needs a GUI to be instantiated.
- get into library or install into pypi first...
- see if people like it.
- Could be part of main...
- iteration cycles...
- applications:
- interactive use cases where helpful
- API: distinguish from different interfaces.
- could have an experimental import of 3rd party library...
- circular dependency
- optional dependency?
- next week @tacaswell @timhoffm will try and look at it...
- would require documentation changes, but after stable

### mypy pre-committ hook?
- runs on `lib/matplotlib/`
- some caching
- linter?

### grid versus list tables
- read more than edited
- spacing
- vim extension, VSCode
- longer tables OK as list table...
-

----------
# 28 Sept 2023

## Agenda
_attending_: @tacaswell, @rcomer, @devRD, @oscargus, @haoyingzhang, @efiring, @theOehrly, @ananyadevarakonda, @ksunden, @jklymak, @story645, @qulogic, @rakshitsingh

### Old Business
- [x] GHC

### New Business
- [x] RSE reports
- [x] GSOD: https://github.com/matplotlib/matplotlib/pull/26851
- [x] [name=hannah] hacktober

### Issues and PR:

- [x] [name=jklymak] [timedelta64 support](https://github.com/matplotlib/matplotlib/pull/19236)
- [ ] [name=jklymak] [contour: allsegs, alltypes](https://github.com/matplotlib/matplotlib/issues/26913) remove depreaction?
- [ ] [name=jklymak,anntzer] [access to colorbar's formatters/locators](https://github.com/matplotlib/matplotlib/issues/26896)
- [ ] [name=jklymak] mpl-gui? https://github.com/matplotlib/mpl-gui
- [x] [name=oscargus] Rename "topic: types" to "topic: typing"?
- Objections?
- [ ] [name=oscargus] [Typing of values ending up in Text](https://github.com/matplotlib/matplotlib/pull/26867)
- Text converts to str independent of input data
- Type as Any, document as str as @timhoffm suggests? (Makes sense to me.)
- [ ] [name=oscargus] [set/get_linestyle and dashed and ...](https://github.com/matplotlib/matplotlib/pull/23056)
- If I have time to prepare a presentation and @timhoffm is present
- [ ] [Symlog hexbin](https://github.com/matplotlib/matplotlib/pull/22718)
- Review needed, long waiting (make sure it is squash-merged)

## Notes

### introductions

### GHC
- got a good number of PRs (and ) datetime tests and deprecations

### RSEs
- @ksunden : all day at Grace Hopper, dealing with GHC issues (merge conflicts, CI),
- Typing `mypy --strict` reports pouring in.
- eg `plt.show` is untyped and mypy fails.
- meson discussions
- @QuLogic
- GHC things: about 15 PRs
- cycler release candidate; testing trusterd publisher workflow
- remove some cycler type hinting
- documentation site: redirects to clean up some of the setup so that many files can be moved out of top level
- ISO 1202 cycling linestyles issue. Some interesting thoughts about implimentation of dashing.
- standard is $200 or so to buy
- long descriptive names?
- straightforward to impliment
- worth thinking about reviving LineStyle class work

### GSOD:
- tagging sprint?
- good plan
- PR
- please look at
- discussion about separating the different domains the tags are pulled from (generic vs mpl specific)
- how should this look in the docs?
- how do we make sure it is clear that the number of docs can grow?
- how will this look when rendered in the docs?
- will help evaluate how the tags are understood
-``` .. tags:: tag1, tag2```
- sample: https://napari.org/stable/gallery.html
### Hacktober
- no t-shirts; plant a tree
- datetime testing as easiest thing to steer people to
- put tags on, and help first PRs.
- spam label if nuisance PRs
- "hacktober accepted" label for unmerged but worthy PRs

### Timedelta64
- either error better
- or use Timedelta64 as in PR.
- mark as provisional consider unstable for a cycle...
- need example for how to turn it off and changing defaults.
- need to look at knobs for adjusting Locator and Formatter.
- Whats new needs examples
- pandas Timedelta formatter as touchstone?
- stop at a day for largest interval
- Current version:
- has knobs
- @theOherly willing to work on this
- string formatting? Define string formatter...
- define a function formatter

### Comaptibility with pandas and CFtime:
- useful to rethink ways to lock out Locators and Formatters that are incompatible with a given unit converter so users are not confused when locators and formatters don't work.
- https://github.com/matplotlib/matplotlib/issues/24951

-------

# 21 September 2023

## Agenda
_attending_: @efiring, @ksunden, @tacaswell, @rcomer, @trygve, @haoyingzhanh, @jklymak, @devrd, @QuLogic, @story645

### Old business

### New Business
- [x] RSE updates
- [x] GSOD updates
- https://github.com/matplotlib/matplotlib/pull/26851
- [x] 3.8 release
- typing fallout?
- [pandas](https://github.com/matplotlib/matplotlib/issues/26858)
- [x] GHC OSD prep
- [ ] https://github.com/matplotlib/matplotlib/pull/26859
- [x] [name=hannah] [merge with single review label](https://github.com/matplotlib/matplotlib/labels/status%3A%20merge%20with%20single%20review%3F)
- [x] numfocus summit comments

### Issues and PRs
- [ ] meta-limits https://github.com/matplotlib/matplotlib/issues/26442

## Notes

### RSE updates:
- @tacaswell: on family leave
- @ksunden: dealing with 3.8 release issues.
- np.ndarray not a `Sequence` but is acceptable input for many things. "array-like" isn't correct because it accepts scalars. `np.ndarray` is missing index and count
- `plt.Axes` and `plt.Figure` not exported
- locale issue
- some optimizations had unexpected changes
- @QuLogic
- 3.8 fallout
- CI automation
- trusted-publishing on cycler
- meson
- https://github.com/matplotlib/matplotlib/pull/26621
- makes c-extension work way easier
- cirrus CI
- https://github.com/matplotlib/matplotlib/pull/24597
- currently passing, but numpy has been hitting caps
- GHC OSD prep
- have a lot of "good first issue" PRs
- add issue for removing deprecations

### GSOD

- first draft of tags + tag guidelines
- Eva has been tagging things in a spreadsheet
- goal is to do tagging sprint at pydata NYC (November)
- looking for high-level feedback on categories
- private category?
- tags on examples but not displayed on built page
- check if this is a good starting point
- levels
- based on what context the reader to understand
- are there any controversial looking tags
- things that would be hard for a new-contributor to follow rules and correctly apply tags

### NFSummit

- @rcomer attended last week in Amstredam
- discussions about writing a cook-book for universities for how to contribute to open source projects in a way that is easier on maintainers
- lots of biology projects

### single review merge label

can use if you want

### issues with sphinx version

### namespace packages

- why do we have a namespace package
- historical reasons
- currently having (worse) issues with shadowing
- if you shadow something with a Matplotlib install which provides the mpl_toolkits importer will prefer the old one

options
- move mpl_toolkits in wholesale
- move just mplot3D

cons: by pulling it in we are sigining up to keep it alive forever

--------
# 14 September 2023

_attending_: @trygvrad, @jklymak, @ksunden, @IGuKs80UTJCig4yt6Zos7w (@greglucas), @QuLogic, @devRD , @haoyingzhang, @efiring, @story645

### Old business
- [x] Steering team?

### New business
- [ ] RSE updates
- [ ] GSOD updates

### Issues and Pull requests

- [ ] [name=hannah] [move coc into users/project](https://github.com/matplotlib/matplotlib/pull/26702)
- motivation is new landing page [about us](https://matplotlib.org/devdocs/#about-us)
- [ ] [Multivariate colormapping](https://github.com/matplotlib/matplotlib/issues/14168#issuecomment-1719170227)

## Notes

- steering council team: @QuLogic will work on it.

### RSE updates:
- @ksunden
- 3.8 Segfault reported so working on that (polar triangles with NaN values in Agg);
- release notes
- @QuLogic also 3.8 release;
- CI - new limits on Cirrus builds will have to watch;
- Working on Meson build - waiting on pybind11 for image module. Also after 3.8;
- no-build-isolation flags when building editable versus isolated VM
- some notes in docs for developers
- otehrwise should be similar
- some concern for downstream that care about nightly wheels because version number labeller not trivial;
- needs upstream work
- advantage; auto recompile c extensions if edited versus having to remember to pip install..
- mpl-sphinx-theme: automatic pushing to pypi. Maybe try for 3.9 or 3.8.1 main library versus manually upload wheels.

### GSOD/GSOC
- @ratna
- post to front page news item. Need to fix sphinx pinning.
- GSOD:
- no updates.

### Code of Conduct
- move into `users/project` from `CODE_OF_CONDUCT.md`
- link goes to stable

### Mutlivariate colormapping

- types:
- overlapping images with single colormaps
- meshing two images:
- RGB matrices "added"
- need to choose RGB so that adding is well-defined
- 2-D colormap
- designed 2-D colormaps
- hsv colormaps, but uneven in colorspace
- https://colorstamps.readthedocs.io/en/latest/
- implimentation options:
- implicit
- set V colormaps or norms to trigger
- (V, M, N)
- Additive: colormap families needed to make sense
- Two-d: separate bivariate norm and bivariate colormaps
- ScalarMappable multiple norms?
- Make a parent "Mappable" that allows multiple inputs to make a color.
- use the Transform stack as a model maybe? _BaseMappable + dim dispatch
- new methods as alts to `{plt, fig}.colorbar(ScalarMappable)`
- `multiple_colorbar(VectorMappable)` that positions multiple colorbars
- `bivariate_color{square,circle}(VectorMappable)` + new class(es) for color square/circle object
- explicit
- separate methods.
- third alternative: separate packages.

--------
# 07 September 2023

_attending_: @rcomer @devRD @jklymak @story645 @efiring @haoyingZhang @QuLogic

### Old business
- [x] [name=hannah] [ipympl small dev grant](https://hackmd.io/NngZP7hTRVuPPHcnNFx8OA)

### New business
- [x] RSE updates
- [x] GSOC/GSOD updates
- [x] [name=hannah] [CZI EOSS round 6](https://chanzuckerberg.com/rfa/essential-open-source-software-for-science/)
- [x] add steering council [github team](https://github.com/orgs/matplotlib/teams)
- would allow for finer grained permissions on governance

### pull requests
- [ ] MPL GUI: https://github.com/matplotlib/mpl-gui Perhaps move to integration soon?

## Notes

### ipympl small dev grant?
- $10k...
- ipympl more usable, and similar as possible to other backends.
- limitation now: can't act on previous plot?
- compare w/ other similar backends
- won't submit on this cycle, instead gather more info for submitting different round or as a larger grant
- https://github.com/pyodide/matplotlib-pyodide
- https://github.com/matplotlib/ipympl

### RSE

### GSOC/GSOD

- @Ratna: GSOC ended. Time off. Draft PRs. Final reports submitted. Blog post. Will send link to @story645
- @story645: tagging sprint pydata Nov. Second draft on site by Oct. First draft up soon?

### EOSS round 6
- will want to go for that, as much as we can get.
- [CZI EOSS round 6](https://chanzuckerberg.com/rfa/essential-open-source-software-for-science/)
- https://chanzuckerberg.com/wp-content/uploads/2023/08/EOSS-6-RFA-Packet-Final.pdf
- Maintenance of the project
- Steering council will discuss plans going forward.

----
# 31 August 2023

_attending_: @efiring, @IGuKs80UTJCig4yt6Zos7w @haoyingZhang, @story645 @QuLogic @devRD @timhoffm

## Agenda

### Old business

### New business
- [x] RSE updates
- [x] GSOC/GSOD updates
- [x] 3.8rc
- [x] [name=hannah] pydata NYC, Nov 1-3
- [x] [name=hannah] small dev grant, Sept 8
- [x] [name=hannah] streamline approval of triage additions
- [ ] @qlogic PyCharm issue

### Pull requests
- [ ][name=hannah] [barh dict key](https://github.com/matplotlib/matplotlib/pull/26577)

## Notes

### RSE
- Kyle: largely 3.8rc; some with Seaborn, numpy 2.0 preparation. Did do some playing with data-prototype units behavior
- Elliott: typing large and small; mainly Meson #26621 should be close; docs coming soon.

### GSOC/GSOD
- Ratna: comments on open PRs; work on super/subscripts, spaced--looking for LaTeX behavior matching.
- Hannah (for Eva): fleshing out scoping; opened issues on Sphinx Gallery.

### 3.8rc
- Some typing cleanups to be done.
- Dictionary input to barh is broken by a typing change PR? Kyle will investigate.

### Pydata NY
Hannah will attend and probably do a sprint and maybe a joint tutorial; is anyone else coming? Sept. 22 deadline for proposal (but it's flexible); only cost is travel.

### Small Devel Grant
Hannah talked with Ian Hunt-Isaak about mpl-playback, for gifs in gallery to show widget behavior; probably not enough work still needed.
- https://github.com/matplotlib/matplotlib/pull/23441
- https://github.com/matplotlib/matplotlib/pull/22634
- https://github.com/pyodide/matplotlib-pyodide

Concern about low-bandwidth functionality: there may be options for handling it.

Do we need a full html backend? Render to html; can see by opening in browser.

- Do we want another Quantstack SDG for ipympl improvement or replacement?
- Nicolas Rougier advocates a library-independent rendering protocol. All libraries could take advantage of the various hardware optimizations. Maybe an SDG could do a study preparatory to a massive project.
- Elliott: vispy was supposed to be an all-encompassing replacement of all 3D graphic libraries. While it didn't fully do that, there was a `jupyter_rfb` that came out of it that might be useful for `ipympl` as its implementation/replacement. https://jupyter-rfb.readthedocs.io/en/stable/
- Proposal from Hannah: SDG for ipympl maintenance? She will start a hackmd for listing things to fix.
- https://hackmd.io/NngZP7hTRVuPPHcnNFx8OA

### backends for notebooks
Tim: better notebook backend is higher priority.

### streamline approval of triage additions
Proposal: send steering council "is this person OK to add" email? steering council has N days to say NO, maintainers have privileges to/can then add person

### PYCharm
#26463 (Tim has PyCharm and can check) Elliot can't reproduce; maybe it is PyCharm version-specific, maybe fixed.

# 24 August 2023

_attending_: @efiring, @rcomer, @haoyingZhang, @ksunden, Eva Sibinga, @story645, @devRD, @QuLogic

## Agenda

### Old business

### New business

- [x] RSE updates
- [x] GSOC/GSOD updates
- [x] 3.8rc
- [x] what systems are supported?

## Notes
### small dev grant
- mpl-playback has 50% feedback, question is how fast is good enough for doc builds
### tiny-icons
- numfocus lawyers are talking to tiny-icons

### RSE
- ksunden: NASA annual report, responding to 3.8 issue reports (Seaborn today); with Elliot, looked through Fedora build failures; mostly minor
- Elliot: Fedora: only 5 are new failures; bugs reported. Nothing that we accidentally broke. Work on Meson port, facilitated by work done for numpy and scipy. Working on linux and Freetype versions. Should be ready for 3.9.

### GSOC/GSOD
- Eva: draft PR coming in next few days with guidelines for tagging gallery examples. Includes examples of tags.
- Ratna: GSOC final report deadline this week. Some longterm issues depend on future work. New features have been added.

### 3.8
Not too many complaints about backwards incompatibility.

### What systems do we support?

Whatever is reasonable: we can test it, and there is a developer.

Specific question: GTK on Mac? Maybe; updating for newer GTK API is good, provided the code still works on older versions.

Testing of doc build on Windows? Maybe weekly? Hannah will investigate; requires command-line latex, etc.

# 17 August 2023

_attending_: @efiring, @ksunden, @haoyingZhang, @melissawm,
@chahakmehta, @oscargus, @devRD, @story645, @QuLogic, @rcomer

## Agenda

### Old business

### New business

- [X] RSE updates
- [X] GSOC/GSOD updates
- [X] 3.8rc
- [X] 3.9
- [x] small dev grant https://numfocus.org/programs/small-development-grants

## Notes

### Old
Plausible: instance set up, managed by scientific python project; Elliot will contact Melissa via email regarding an address and contact.

### RSE
- Kyle: new desktop set up. Annual report for NASA grant is underway. responding to 3.8 bug reports; general maint. Fix sphinx
- Elliott: mostly typing on mathtext; CI maint.; Cirrus is working, but should we enable it? Other maint.
- Melissa: "plausible", working on reports, winding down.

### GSOC/GSOD
- Ratna: various mathtext features
- Hannah: no update this week

### 3.8
- Oscar: https://github.com/matplotlib/matplotlib/pull/26522 Do we need better validation?

### 3.9
- Haoying: https://github.com/matplotlib/matplotlib/issues/26092
- RGBA array + alpha kwarg input
- scaler alpha:
- 2D and RGB - overwrites
- RGBA - works, unclear if blend or overwrite
- array alpha:
- 2D array w/ colormap (no A): overwrites cmap(2d Array)(A=1)
- 2D array w/ colormap w/ A: unknown cmap(2d Array)
- RGB: ignores alpha -> RGB(A=1)
- RGBA array: ignores
proposed solutions:
- ignore one alpha - either A or alpha
- blend A and alpha -
- consensus: to consistenly blend, treat alpha=None as alpha=1

### small dev grant
Due... Sept 8
- mpl-playback: https://github.com/matplotlib/matplotlib/pull/23441

# 10 August 2023

_attending_: @efiring, @rcomer, @ksunden, @melissawm, @oscargus, @haoyingZhang, @devRD, @QuLogic, @story645, @chahakmehta, @anntzer, @tacaswell

## Agenda

### Old business

### New business

- [x] RSE updates
- [x] GSOC/GSOD updates
- [x] NF summit
- [x] 3.8rc1 is out!
- [x] 3.9 goals?

## Notes

### RSE
- Thomas
- clearing issues, helping with 3.8
- Kyle
- geting 3.8rc1 out the door
- pypy wheel building / musl
- Elliott
- finishing up 3.8, ps work, doc work
- Mellissa
- working on grant report / wrapup
- planning to do some doc work

### GSOC/GSOD

- Ratna (GSOC)
- had a couple of stalled issues, currently working on resolving
- was waiting on feedback on alignment which was gotten, dealing with consequences
- Hannah (GSOD)
- there is a PR that needs review

### NF summit
- Ruth and Tim will be representing Matplotlib
- pass them anything we want to communicate to NF or other projects

### 3.8.0rc1

- please test!
- question about typing private methods
- not done in first pass because it is aimed at down-stream tools
- not done to try and put upper bound on initial work
- we will take PRs to add types to private methods going forward

### 3.9 goals

- finish rcparams work (chahak)
- linestyles (from Oscar, need input from Tim)
- continue to (re)organize the docs
- backend selection improvements / pull in mpl-gui ()https://github.com/matplotlib/mpl-gui
- pull mplcairo into core?

### plausible (website analytic)
- scientific python has an instance

### symlog locater

- internal list is not ordered, should we fix it or just test the current behavior
- decide to just leave

###

# 03 August 2023
_attending: @efiring, @rcomer, @greglucas, @ksunden, @devRD, @tacaswell , @story645

## Agenda

### Old business

### New business

- [x] RSE updates
- [x] GSOD / GSOC updates
- [x] 3.8 rc?!
- [ ] where to put the GSOD output: [organize docs devdocs](https://github.com/matplotlib/matplotlib/issues/26392)

## Notes
### updates
- RSE update
- Tom: where did july go?! Some 3.8 work + behind the scenes work
- Kyle:
- 3.8 prep
- got the pyparsing fix commited upstream and backported to 3.7.x
- working with xarray to deal with our coming type hints, at least one fix on our side
- all main release critical stuff is done
- Elliott:
- typing work for 3.8 (using mypy --strict and fixing small things)
- mplsphinx-theme to upload automatically
- GSOC
- ok-ish
- been working on a couple of issues that are not clear, waiting on feedback
- looking at bold caligraphy
- sized delimiters
- GSOD
- Eva has a couple of small PRs in the queue
- text is getting ready
- where to put it?
- going well
-
### 3.8 progress

- one PR from @QuLogic with lots of little type hint fixes https://github.com/matplotlib/matplotlib/issues/26407
- tonight or tomorrow

### news

- we have a pypi org now

### orginize the docs

- @story645 is going to start writing a documentation road map

# 27 July 2023

## Agenda

_attending_: @efiring, @jklymak, @ksunden, @devRd, @RaphaelQuast, @haoyingZhang, @qulogic, @story645

### Old business

### New business

- [x] RSE updates
- [x] [name=hannah] [Simple Icons permission](https://github.com/simple-icons/simple-icons/issues/3410#issuecomment-671602746)
- [x] [name=hannah] [new docs labels](https://github.com/matplotlib/matplotlib/labels?q=document)
- [ ] 3.8 outstanding issues

### PRs and Issues

- [x] [name=ratna] Hrule rendering: https://github.com/matplotlib/matplotlib/issues/23763
- [ ] [name=raphael] pan/zoom of overlapping axes https://github.com/matplotlib/matplotlib/pull/22347
- [ ] antialiasing in mathtext https://github.com/matplotlib/matplotlib/pull/26376

## Notes

### RSE updates
- @ksunden: reviews for 3.8 in particular (typing w/ Elliott)
- @QuLogic typing work, largely internal
- @Ratna: GSoC
- mathtext. Draft PRs (hrule, latin)
- @hannah: GSoD
- second eval submitted, halfway through first pass tagging, private draft of tagging + content guidelines

### Typing
- new 3.8
- maybe some release strategy
- document for users, developers
- downstream projects: some comms at scipy as may affect them.
- Microsoft has some type hints that people have used.
- project ones take precedence (probably)

### Hrule
- Hrule rendering: https://github.com/matplotlib/matplotlib/issues/23763
- maybe clarify issue more
- contact @anntzer with write up of problem and potential repair paths

### tiny icon
- https://github.com/simple-icons/simple-icons/issues/3410#issuecomment-671602746
- trademark issue?
- numfocus?
- https://github.com/simple-icons/simple-icons/blob/develop/DISCLAIMER.md
- [x] @story645 emailed Numfocus & CCed steering-council

### Doc github labels
- more fine grained than before

### RC 3.8
- pyparsing issue; pinned for now
- testing issue...
- user facing in error handling...
- contouring antialiasing
- re-adding property
- some deprecations recommend deprecated properties

### pan/zoom of overlapping axes
- https://github.com/matplotlib/matplotlib/pull/22347

### mathtext anti aliasing?
- needs review
- 3.8?
- https://github.com/matplotlib/matplotlib/pull/26376