Python: Security & Performance Power-Up
Today we're diving into 15 commits that landed in CPython, featuring critical security fixes including a CVE patch for HTTP cookies, exciting JIT performance improvements, and some solid bug fixes across multiprocessing and XML parsing. The Python core team has been busy making the language both safer and faster.
Duration: PT4M6S
Episode overview
This episode is a short developer briefing from Python.
It explains recent repository work in plain language.
- Show: Python
- Published: 2026-03-16T00:00:00Z
- Audio duration: PT4M6S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Hey there, Python developers! Welcome back to another episode of the Python podcast. I'm your host, and wow, do we have an exciting day to dig into. March 16th brought us 15 solid commits to CPython, and let me tell you - this is the kind of day that makes me genuinely excited about where Python is heading.
Let's jump right into the big story today, because we've got some serious security business to talk about. Stan Ulbrych, working alongside Victor Stinner, just landed a critical security fix that addresses CVE-2026-3644. This one's all about HTTP cookies, and here's why it matters: they've added protection against…
Speaking of fixes that make Python more robust, Ramin Farajpour Cami tackled a crash in Expat's ExternalEntityParserCreate error paths. XML parsing might not be the most glamorous part of Python, but when it crashes, you definitely notice. This fix ensures that error handling in XML parsing is rock solid, which is…
Now here's a fix that's going to make some of you very happy - Gregory P. Smith solved an annoying issue with freeze_support in multiprocessing. You know that frustrating moment when freeze_support would lock in the default start method and then complain…
But…
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Nearby episodes from Python
- Documentation Cleanup and Performance Tweaks
- Performance & Safety Spring Cleaning
- Under the Hood Optimizations and Bug Squashing
- Core Stability & Performance Sprint
- JIT Optimizations and AsyncIO Fixes
- Audio Adventures and Threading Safety
- Windows REPL Fix and Performance Wins
- Spring Cleaning and Performance Gains