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Who is the host of core.py?

core.py is hosted by Pablo Galindo and Łukasz Langa. The show is categorised under news and has published 31 episodes.

How many episodes does core.py have?

core.py has published 31 episodes.

What topics does core.py cover?

core.py regularly covers news. It sits in the news category.

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core.py is accessible for guests with genuine news expertise. A personalised, episode-aware pitch will still outperform a generic one every time.

Is core.py currently accepting guest pitches?

core.py hasn't explicitly signalled guest openness in recent episodes. That doesn't rule out pitching. your hook just needs to be especially compelling and relevant to their recent content.

How long are core.py episodes?

Episodes of core.py average 105 minutes, giving guests a long-form format with plenty of time to expand on their expertise.

What guest credentials does core.py typically look for?

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news

core.py

Hosted by Pablo Galindo and Łukasz Langa · news · EN · 31 episodes

Audience: 3

Apple Podcasts Website

About this Podcast:

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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31%

Guest openness

Selective

Verified email on file

80/100

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What is core.py?

core.py is a news podcast hosted by Pablo Galindo and Łukasz Langa, with 31 episodes on record and a Required Pod Score of 80. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.

About the host

Pablo Galindo and Łukasz Langa hosts core.py, a news show with 31 episodes published.

Verified host email: ████████@████.comSign in to unlock →

Recent episodes

Our AI reads these to draft pitches. Use them as grounding for a pitch that cites a real guest and a specific topic.

Episode #29
Episode 29: Is CPython developed with AI now?
Apr 16, 20262h 9mS1
Let's talk about what it really means in practice that AI tools are used in the cpython GitHub repository now. First-hand opinions based on first-party experience. And some personal news! ## Timestamps (00:00:00) INTRO (00:00:58) PART 0: Developer Leaves Residence (00:09:15) Python's got more batteries included than Łukasz ever knew (00:14:18) Camera does not respect Łukasz (00:14:43) PART 1: Fucking AI Shit (00:17:36) December 2025 crossed the usability threshold(00:18:24) Pablo wants Claude Max (00:19:24) Python on the Mastodon AI hit lists (00:25:46) Pablo needs human connection (00:28:23) GitHub now lets projects disable pull requests (00:30:35)AI disruption of the security vulnerability processes (00:34:00) Python is getting swamped with PRs, GitHub too (00:36:57) Every PR could be adversarial, AI-assisted or not (00:41:45) Pablo's prediction about reputation and time as currency (00:45:34) PART 2: PR OF THE WEEK (00:46:21) Łukasz: a Pure-Python unicodedata module? (00:57:16) Pablo: diff-based terminal rendering in PyREPL (01:12:26) Copilot reviews on GitHub (01:19:11) Debugging with AI (01:26:39) PART 3: WHAT'S GOING ON IN CPYTHON (01:26:57) Subscribe to Savannah's coredispatch.xyz (01:29:22) Python releases since last episode (01:30:45) New team members (01:31:12) PyCon US: come and book the official hotel (01:32:54) blog.python.org now looks like it was made in 2026 (01:35:27) Features (01:56:08) Free-threading changes (01:58:48) Curiosities (01:59:49) Bugfixes (02:03:55) OUTRO
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Episode #28
Episode 28: 2025 In Review
Jan 3, 20261h 17mS1
Let's take a breather from heavy content and take a look back at last year in this light but spicy episode! The good, the less good, and the disgusting. All that in barely an hour! ## Timestamps (00:00:00) INTRO (00:01:32) Pablo Galindo SPACE (00:06:20) PART 1: 2025 - the good, the uncertain, and the disgusting (00:07:06) Good: free threading (00:15:34) Good: remote debugging (00:17:31) Good: Python Installation Manager on Windows (00:19:44) The juicy bits (00:20:12) Uncertain: the JIT (00:21:04) Uncertain: Steering Council elections (00:25:01) Uncertain: another type checker (00:28:57) The TIOBE index (00:34:03) Mojo (00:38:12) Underinvestment (00:44:53) The Future (00:56:41) PART 2: PR OF THE WEEK (01:05:32) PART 3: WHAT'S GOING ON IN CPYTHON (01:08:00) Performance (01:11:47) Free threading (01:14:04) OUTRO
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Episode #27
Episode 27: Calling Things, Part 1
Dec 7, 20252h 6mS1
Inside of you there are two stacks. Actually, there’s three. The system-level call stack, the CPython call stack, and the interpreter’s evaluation stack. What is all that about? Today we’ll talk about how synchronous Python function calls work. Async stuff comes next time! ## Timestamps Here you go — all square brackets changed to parentheses: (00:00:00) INTRO (00:02:28) PART 1: CALLING THINGS (00:04:19) The Lawful Good Language (00:13:18) Why is there a call stack? (00:19:45) Python functions are not tied to the system call stack (00:23:22) What's in a Python frame? (00:23:35) Execution book-keeping data (00:24:21) Locals (00:27:35) The interpreter evaluation stack (00:28:34) What are register-based interpreters? (00:36:33) Interpretation using the evaluation stack (00:42:46) Executing a function (00:45:37) How do exceptions fit into the execution model? (01:05:51) PART 2: PR OF THE WEEK (01:15:48) PART 3: DONATE.PYTHON.ORG (01:17:21) PART 4: WHAT'S GOING ON IN CPYTHON (01:27:59) Free threading changes (01:38:16) Performance (01:51:08) Bugfixes (02:04:03) OUTRO
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Episode #27
Episode 26.2: CPython Sprint Week in Cambridge UK, Part 2
Oct 25, 20252h 18mS1
More interviews from the core sprint! This time we have: Greg P. Smith, Thomas Wouters, Paul Ganssle, Pradyun Gedam, Carol Willing, Guido van Rossum, Brett Cannon, Erlend Aasland, Tal Einat, Lysandros Nikolaou, Yury Selivanov, and Diego Russo -- the organizer himself. ## Timestamps (00:00:00) INTRO (00:01:51) Greg P. Smith (00:07:57) Thomas Wouters (00:16:33) Paul Ganssle (00:28:28) Pradyun Gedam (00:34:02) Carol Willing (00:43:32) Guido van Rossum (00:55:39) Brett Cannon (01:10:01) Erlend Aasland (01:14:05) Tal Einat (01:22:21) Lysandros Nikolaou (01:30:40) Yury Selivanov (01:45:08) Diego Russo (01:58:27) What did the hosts do? (02:17:18) OUTRO
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Episode #26
Episode 26.1: CPython Sprint Week in Cambridge UK, Part 1
Oct 15, 20252h 25mS1
What? What do you mean this two-and-a-half hour episode is PART 1? Well, there were fifty people at the sprint in September. We interviewed thirty of them. In Part 1 you can hear from 18 of them: Ken Jin, Alex Waygood, Russell Keith-Magee, Sam Gross, Steve Dower, Dino Viehland, Petr Viktorin, Peter Bierma, Eric V. Smith, Hugo van Kemenade, Savannah Bailey, Eric Snow, Brandt Bucher, Antonio Cuni, Larry Hastings, Hood Chatham, Victor Stinner, and Mark Shannon. ## Timestamps (00:00:00) INTRO (00:02:43) Ken Jin (00:05:28) Alex Waygood (00:08:21) Russell Keith-Magee (00:17:32) Sam Gross (00:23:25) Steve Dower (00:26:17) Dino Viehland (00:36:02) Petr Viktorin (00:40:59) Peter Bierma (00:44:24) Eric V. Smith (00:55:25) Hugo van Kemenade (00:59:39) Savannah Bailey (01:08:53) Eric Snow (01:22:02) Brandt Bucher (01:38:53) Antonio Cuni (01:48:23) Larry Hastings (02:07:54) Hood Chatham (02:12:11) Victor Stinner (02:16:23) Mark Shannon (02:22:44) OUTRO
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Guest Appearances

Recent guests on core.py. Study who booked and why before you pitch.

Savannah Ostrowski

Senior Product Manager, Microsoft

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What is the difference between Founder Solo and Founder Pro?

How do agency tiers work?

What is a talent profile?

Can I switch plans later?

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Do you offer a free trial?

Every paid plan includes a 15-day free trial. Your card is saved at signup but you will not be charged until day 16. Cancel any time from your dashboard.

What happens if I cancel?

You keep access until the end of your current billing period. No charges after that. Your data is retained for 30 days in case you reactivate.

Is the 20% annual discount automatic?

Yes. Select Annual on the pricing toggle and the discounted price is applied automatically at checkout. The annual price shown is the full year cost.

What if I have more than 50 profiles or 20 clients?

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core.py

About this Podcast:

Pitch Analysis

What is core.py?

About the host

Recent episodes

Episode 29: Is CPython developed with AI now?

Episode 28: 2025 In Review

Episode 27: Calling Things, Part 1

Episode 26.2: CPython Sprint Week in Cambridge UK, Part 2

Episode 26.1: CPython Sprint Week in Cambridge UK, Part 1

Guest Appearances

Savannah Ostrowski

Advertisers on this show

Best industries to pitch core.py for

Podcasts like core.py

Every question we get asked beforesomeone starts their trial.

core.py

About this Podcast:

Pitch Analysis

What is core.py?

About the host

Recent episodes

Episode 29: Is CPython developed with AI now?

Episode 28: 2025 In Review

Episode 27: Calling Things, Part 1

Episode 26.2: CPython Sprint Week in Cambridge UK, Part 2

Episode 26.1: CPython Sprint Week in Cambridge UK, Part 1

Guest Appearances

Savannah Ostrowski

Advertisers on this show

Best industries to pitch core.py for

Podcasts like core.py

Every question we get asked beforesomeone starts their trial.

Every question we get asked before
someone starts their trial.

Every question we get asked before
someone starts their trial.