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core.py
Pablo Galindo and Łukasz Langa
24 episodes
3 days ago
We talk about Python internals, because we work on Python internals. We joke about stuff, because we’re jokers. Episodes between 60 and 90 minutes in length. We’ve done more than a few so far and it doesn’t seem like we’ll be stopping any time soon! Hi Loren!
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All content for core.py is the property of Pablo Galindo and Łukasz Langa and is served directly from their servers with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.
We talk about Python internals, because we work on Python internals. We joke about stuff, because we’re jokers. Episodes between 60 and 90 minutes in length. We’ve done more than a few so far and it doesn’t seem like we’ll be stopping any time soon! Hi Loren!
Show more...
Tech News
News
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PyCon US 2025 Recap
core.py
1 hour 36 minutes 11 seconds
1 month ago
PyCon US 2025 Recap

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

core.py
We talk about Python internals, because we work on Python internals. We joke about stuff, because we’re jokers. Episodes between 60 and 90 minutes in length. We’ve done more than a few so far and it doesn’t seem like we’ll be stopping any time soon! Hi Loren!