core.py

Jan 24 2025 18 ep. 85 mins 142

core.py Podcast artwork

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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Episode 18: Reference Counting

Jan 24 2025 99 mins

After we talked about memory allocation in Python back in Episode 16, we're ready to complain, uh, explain reference counting. Or at least throw a bunch of reference counting facts at you. Plus a big assortment of recent Python changes. You ready? ## Timestamps (00:00:00) INTRO (00:04:17) PART 0: SPORTS NEWS (00:06:53) PART 1: REFERENCE COUNTING (00:08:28) New segment of 2025

Episode 17: Argparse, JIT, and balloons with Savannah Ostrowski

Nov 19 2024 105 mins

Meet our newest member of the core developer team, Savannah! Currently at Snowflake, she also worked with development tools at Docker and Microsoft, but also flew drones over forests. In terms of CPython, Savannah works on argparse and the JIT, but that's not her last word. # Timestamps (00:00:00) INTRO (00:01:26) PART 1: INTERVIEW WITH SAVANNAH OSTROWSKI (00:02:12) Beginnings as

Episode 16: Memory Allocation

Oct 29 2024 105 mins

How does Python handle memory? Why does it need to perform custom forms of memory allocation? We talk about all that in this episode. We don't talk about Easter eggs, and we never mention Brandt by name, as promised last time! ## Timestamps (00:00:00) INTRO (00:00:22) PART 0: SPORTS NEWS (00:01:57) PART 1: MEMORY ALLOCATION (00:03:46) If you write C correctly, it manages memory f

Episode 15: Core sprint at Meta

Oct 03 2024 116 mins

Over 40 core developers spent a week in Bellevue WA putting finishing touches on Python 3.13, planning, prototyping, and implementing features for Python 3.14. We talked to half of them. We laughed, we cried. We were happy watching graphs go up, and sad watching them go down. It was intense. There was even cake, no joke!## Timestamps(00:00:00) INTRO(00:02:05) PART 1: THE CAKE IS NO

Episode 14: Integration Events

Sep 03 2024 90 mins

We’ve been gone all Summer, visiting two European conferences in the mean time. In this episode we’re talking about them both, talks we liked, as well as our own talks at those events. In a rare turn of events, this one was recorded in person at Łukasz’s home studio in Poznań! ## Outline (00:00:00) INTRO (00:01:30) PART 1: EuroPython highlights (00:02:03) Maintaining pyre

Episode 13: A Legit Episode

Jun 29 2024 111 mins

In this lucky episode we're interviewing fellow core developer Brandt Bucher to talk about Justin, Swedish warships, and the n-body benchmark. We're also breaking the duration record with this one. We promise we'll get faster in future releases! ## Outline (00:00:00) INTRO (00:01:43) PART 1: BRANDT BUCHER INTERVIEW (00:03:04) Beginnings of contribution (00:06:29) Stic

Episode 12: WTF Python

Jun 10 2024 84 mins

You think you know Python? We thought so, too. Join us for an episode of surprises. You might know some of those, but you sure don't know all of them. ## Outline (00:00:00) INTRO (00:02:22) Integer interning with a twist (00:10:58) Return in finally (00:15:32) all([[]]) (00:20:06) Lists, iterators and hashing shenanigans (00:27:08) hash(-1) (00:31:30) String interning (00:34:23)

Episode 11: Live from PyCon 2024

May 28 2024 30 mins

Who says we can't do short episodes? Well, it was a challenge! But with the help of some gentle conference schedule pressure, here's our first sub-hour episode. We're discussing the language summit, answering audience questions, and behaving like serious professionals, as usual. ## Outline (00:00:00) INTRO (00:02:01) PEP 602 tweaks: 2 years of bug fix releases (00:02:

Episode 10: The Interactive REPL

May 03 2024 82 mins

Oof, no episode in April, huh? Yeah, we're getting close to Python 3.13 beta 1. PyCon US is also coming up real soon. Let's use this opportunity then to talk about a feature we're teaming up on: a better interactive interpreter! ## Outline (00:00:00) INTRO (00:01:53) PART 1: History of Terminals (00:03:20) /dev/tty (00:04:51) The first cool word (00:05:45)

Episode 9: Py Day with Emily Morehouse-Valcarcel

Mar 14 2024 69 mins

Let's talk about the Steering Council, running a small consultancy business, the Walrus, and pet peeves with our special guest today! ## Outline (00:00:00) INTRO (00:00:56) PART 1: Emily Morehouse (00:02:15) Running a small consultancy business (00:04:39) What features of JS do you miss in Python? (00:05:50) Łukasz outnumbered in a world of Steering Council me