2025 Developer Summit

Sponsors#

We would like to thank the following institutions and projects for sponsoring this year’s Summit.

Presenting sponsor

Contributions to the statistical Python ecosystem at this year’s Summit are funded by the NSF POSE Phase 1 award: An open-source ecosystem for statistical Python

Delivery sponsors

Thank you to Berkeley Institute for Data Science and eScience Institute for providing staff and venue in-kind support for the Summit.

Travel sponsors

The following projects financially supported team members to attend the Summit.

During the event#

Worklog
Pre-planning issues
Discord channel
There is also a WhatsApp group for travel coordination

Agenda#

Saturday

Time	Description
	Arrive
18:30	Informal group dinner (meet in lobby)

Sunday

Time	Description
08:40	Meet in hotel lobby (or 9am at eScience)
9:00–9:30	Breakfast
9:00–9:30	Welcome & coordination
9:30–13:00	Work session
13:00–14:30	Lunch & campus/coffee walks
14:30–17:30	Work session
17:30–18:00	Check-in / discussion
19:00	Dinner (Taste of Xian)

Monday

Time	Description
9:00–9:30	Breakfast
9:00–9:30	Welcome & coordination
9:30–13:00	Work session
13:00–14:30	Lunch & campus/coffee walks
14:30–17:30	Work session
17:30–18:00	Check-in / discussion
18:30	Dinner (Costas)

Tuesday

Time	Description
9:00–9:30	Breakfast
9:00–9:30	Welcome & coordination
9:30–13:00	Work session
13:00–14:30	Lunch & campus/coffee walks
14:30–17:30	Work session
17:30–18:00	Check-in / discussion
19:00	Dinner (Big Time Brewery)

Wednesday

Time	Description
9:00–9:30	Breakfast
9:00–9:30	Welcome & coordination
9:30–13:00	Work session
13:00–14:30	Lunch & campus/coffee walks
14:30–17:30	Work session
17:30–18:00	Check-in / discussion
18:30	Informal group dinner

Thursday

Time	Description
	Depart

A friendly reminder that we are guests of the eScience Institute, and that some members of their research staff will continue working in the space during our event.

Funding#

Unlike previous years, participation costs for this year’s summit are covered only for those invited as part of the special track on statistics (for that, we have targeted grant funding).

Project maintainers, please reach out to your individual projects to determine whether they have funds to sponsor your attendance.

Logistics#

We have space for 40 participants for three days and four nights. This will be an invite-only event that requires upfront agreement to: (a) take part in at least one pre-summit planning meeting, (b) collaborate with fellow participants on a work plan, (c) attend the summit in-person, and (d) participate, to whatever degree possible, in several months of post-summit implementation.

Airport to hotel#

There is no need to get a rental car or taxi/ride-share, as the airport and the UW campus area is well-served by bus and rail. We recommend using Link Light Rail to get from the airport to the hotel. It takes approximately an hour and costs $3.25. The closest station to the hotel is “U-District” (0.3mi away), which is a new station opened in 2021 and is not to be confused with the station in Downtown called, “University St”, neither with “University of Washington”.

Food#

Breakfasts, lunches, and dinners are provided during the working days of the summit. On the arrival day, there will be an informal group dinner (meet in the hotel lobby at 6:30). On Wednesday evening, we will likely gather at the Gasworks park for an informal outside dinner. Also refer to the schedule above.

Participants#

Participants are recruited from the community of developers of packages such as NumPy, SciPy, matplotlib, xarray, pandas, scikit-image, scikit-learn, NetworkX, and IPython, as well as domain stacks including Astropy, Pangeo, and scikit-HEP.

About#

Work Topics#

The 2025 Scientific Python Developer Summit will focus on the following work topics:

Dates#

Attendees should preferably arrive the day before the summit starts, and stay for the entire duration of the summit.

Pre-Summit Planning#

Participants will be responsible for attending at least one video meetings and for participating in a planning repository via PRs, issues—as both contributors and reviewers. There is no heavy top-down structure: participants themselves will organize the work that needs to be done ahead of time. They will decide on topics, divide the work, and schedule the meeting.

Summit Execution#

The goal of the summit is to be a hands-on work meeting. That said, there will be some free time scheduled to brainstorm new ideas, and to discuss current community projects and activities.

Post-Summit Implementation#

After the meeting, attendees will collaborate on their assigned tasks until completion.