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Episode 29: Is CPython developed with AI now? episode artwork

Apr 17, 2026 2 hr 9 min

Episode 29: Is CPython developed with AI now?

from core.py Hosted by Pablo Galindo and Łukasz Langa

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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