Add pyhep events for 2025. (#1729)

* Add pyhep 2025 events.

* Apply suggestions from @eduardo-rodrigues

Co-authored-by: Eduardo Rodrigues <[email protected]>

* Fix typo.

* Update pyhep.dev sponsor links.

---------

Co-authored-by: Eduardo Rodrigues <[email protected]>

Author: riga

_activities/pyhep.md

@@ -53,6 +53,8 @@ with the aim to provide an environment to discuss and promote the usage of Pytho
 {:.table .table-hover .table-condensed .table-striped}
 | *Workshop*     | *Location*             | *Date*                | *Agenda link*                                                                         |
 | -------------- | ---------------------- | ----------------------| ------------------------------------------------------------------------------------- |
+| PyHEP 2025     | Online workshop        | October 27-30, 2025   | tba                                                                                   |
+| PyHEP 2025.dev | Seattle, WA, USA       | July 14-17, 2025      | [Indico](https://indico.cern.ch/e/PyHEP2025.dev){:target="_pyhep2025_dev_indico"}       |
 | PyHEP 2024.dev | Aachen, Germany        | August 26-30, 2024    | [Indico](https://indico.cern.ch/e/PyHEP2024.dev){:target="_pyhep2024_dev_indico"}     |
 | PyHEP 2024     | Online workshop        | July 1-4, 2024        | [Indico](https://indico.cern.ch/e/PyHEP2024){:target="_pyhep2024_indico"}             |
 | PyHEP 2023     | Online workshop        | October 9-12, 2023    | [Indico](https://indico.cern.ch/e/PyHEP2023){:target="_pyhep2023_indico"}             |
@@ -65,6 +67,34 @@ with the aim to provide an environment to discuss and promote the usage of Pytho
 
 The advert and details on these workshops are given below.
 
+## PyHEP 2025 & PyHEP.dev 2025
+
+As in previous years, two events will be held again this year:
+
+PyHEP 2025, on October 27-30, is a continuation of the free, online workshop series, which has been bringing
+Python HEP developers and physicists together these past years.
+
+PyHEP.dev 2025 is intended for Python HEP software developers and power users to plan a coherent roadmap and make priorities for the upcoming year. It will be held in-person in Seattle, WA (US) on July 14-17.
+It will include presentations by participants, but the focus will be on birds-of-a-feather style group discussions.
+Attendance is limited to ~50 participants.
+
+### Organising Committee
+
+Matthew Feickert - University of Wisconsin-Madison<br />
+Nikolai Krug - LMU Munich<br />
+Peter Fackeldey - Princeton University<br />
+Ianna Osborne - Princeton University<br />
+Marcel Rieger - Hamburg University<br />
+
+<b>Local organisers:</b><br>
+Gordon Watts - University of Washington
+
+### Sponsors
+
+One of the, or both, events, is/are kindly sponsored by (details on the Indico pages)
+
+![IRIS-HEP]({{ site.baseurl }}/images/pyhep/IRIS-HEP_logo.png){:height="60px"}
+
 ## PyHEP 2024 & PyHEP.dev 2024
 
 Two events will again be held this year:

organization/_posts/2025/2025-04-10-coordination.md

@@ -7,7 +7,7 @@ layout: plain_toc
 
 Present/Contributing: Ruslan Mashinistov, Liz Sexton-Kennedy, Claire Antel, Ianna Osborne, Michel Villanueva, Inês Ochoa, Maarten van Veghel, Juan Miguel Carceller, Sapta Bhattacharya
 
-Apologies/Contributing: Eduardo Rodrigues, Graeme A. Stewart, Paul Laycock, Caterina Doglioni, Michel Jouvin, Christian Wessel, Alexander Moreno Briceño 
+Apologies/Contributing: Eduardo Rodrigues, Graeme A. Stewart, Paul Laycock, Caterina Doglioni, Michel Jouvin, Christian Wessel, Alexander Moreno Briceño
 
 
 ## News, general matters, announcements
@@ -112,7 +112,7 @@ Future events:
 Ruslan Mashinistov:
 
 - I reached out to people who participated in the GitLab DUO pilot at CERN, as mentioned in the AI-powered development tools at CERN slides, but unfortunately received no responses.
-- Shuwei Ye, an AI tools enthusiast from the BNL NPPS (physics software) group, has agreed to share his experience. He has insights on Aider, DeepSeek-R1, Copilot, Codeium, and more. 
+- Shuwei Ye, an AI tools enthusiast from the BNL NPPS (physics software) group, has agreed to share his experience. He has insights on Aider, DeepSeek-R1, Copilot, Codeium, and more.
 - I need advice on how to attract more presenters and participants for the AI-assisted tools HSF seminar
 
 
@@ -133,7 +133,7 @@ Planning a new meeting with liaisons to discuss contributions.
 [JuliaHEP 2025 Workshop](https://indico.cern.ch/event/1488852/) will be held at Princeton from July 28 to 31.
 - Early registration deadline for local participation: April 25
     - After April 25 an additional fee will apply
-- Final registration deadline: July 7 
+- Final registration deadline: July 7
 
 ### GSoC program 2025