PyCon US 2025 Recap
Episode 23 of the core.py podcast, hosted by Pablo Galindo and Łukasz Langa, titled "PyCon US 2025 Recap" was published on June 13, 2025 and runs 96 minutes.
June 13, 2025 ·96m · core.py
Summary
We’ve been gone a while. Here’s our excuse for being silent for a month: PyCon, PyCon, something something security. Come listen to how the conference looked like from our perspective! And whatever you do, DO NOT upgrade to Python 3.13.4.## Timestamps(00:00:00) INTRO(00:01:06) PART 1: LANGUAGE SUMMIT(00:04:47) A bit about the Summit talks(00:06:19) Is free-threading happening?(00:09:20) Łukasz and his favorite discussion item at the Summit(00:13:38) Find actual competent coverage of the Summit on the PSF blog(00:14:17) PART 2: PYCON TALK HIGHLIGHTS(00:14:33) Cory Doctorow's opening keynote(00:18:17) Brandt Bucher's talk on JIT challenges(00:28:28) Lysandros and Nathan talk about community adoption of free-threading(00:36:23) Lynn Root's keynote(00:37:46) PyXL: Python-oriented chip(00:39:47) Łukasz and his tutorial on WebGL with PyScript(00:47:58) A new bet appears!(00:48:14) Zoom, Enhance the Banana(00:54:11) Watch out, Łukasz is talking about audio again(01:02:42) Ivona and Pablo talk about remote code execution as a service(01:05:44) Core Python sprints after the conference(01:12:48) PART 3: PR OF THE WEEK(01:13:00) tarfile security fixes(01:19:13) Pablo's PR: strncmp considered harmful(01:25:36) PART 4: WHAT'S GOING ON IN CPYTHON(01:26:06) compression.zstd lands(01:28:01) concurrent.futures → asyncio.Future transfer 4X faster(01:29:14) Bugfix: PyCFuncPtr_call no longer uses locks(01:30:13) Some curiosities(01:34:14) OUTRO
Episode Description
We’ve been gone a while. Here’s our excuse for being silent for a month: PyCon, PyCon, something something security. Come listen to how the conference looked like from our perspective! And whatever you do, DO NOT upgrade to Python 3.13.4.
## Timestamps
(00:00:00) INTRO
(00:01:06) PART 1: LANGUAGE SUMMIT
(00:04:47) A bit about the Summit talks
(00:06:19) Is free-threading happening?
(00:09:20) Łukasz and his favorite discussion item at the Summit
(00:13:38) Find actual competent coverage of the Summit on the PSF blog
(00:14:17) PART 2: PYCON TALK HIGHLIGHTS
(00:14:33) Cory Doctorow's opening keynote
(00:18:17) Brandt Bucher's talk on JIT challenges
(00:28:28) Lysandros and Nathan talk about community adoption of free-threading
(00:36:23) Lynn Root's keynote
(00:37:46) PyXL: Python-oriented chip
(00:39:47) Łukasz and his tutorial on WebGL with PyScript
(00:47:58) A new bet appears!
(00:48:14) Zoom, Enhance the Banana
(00:54:11) Watch out, Łukasz is talking about audio again
(01:02:42) Ivona and Pablo talk about remote code execution as a service
(01:05:44) Core Python sprints after the conference
(01:12:48) PART 3: PR OF THE WEEK
(01:13:00) tarfile security fixes
(01:19:13) Pablo's PR: strncmp considered harmful
(01:25:36) PART 4: WHAT'S GOING ON IN CPYTHON
(01:26:06) compression.zstd lands
(01:28:01) concurrent.futures → asyncio.Future transfer 4X faster
(01:29:14) Bugfix: PyCFuncPtr_call no longer uses locks
(01:30:13) Some curiosities
(01:34:14) OUTRO
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