PyTorch: Testing Cleanup and Pattern Matching Progress
Today's PyTorch activity shows 27 commits focused on test infrastructure improvements and Python 3.13 pattern matching support. Kurt Mohler led a major MPS testing cleanup removing over 400 lines of test exceptions, while Guilherme Leobas made significant progress on pattern matching opcodes, though one feature was auto-reverted for stability.
Duration: PT4M8S
Episode overview
This episode is a short developer briefing from PyTorch.
It explains recent repository work in plain language.
- Show: PyTorch
- Published: 2026-02-01T11:04:20Z
- Audio duration: PT4M8S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Hey everyone, and welcome back to the PyTorch podcast! I'm your host, and it's February 1st, 2026. Grab your coffee because we've got some really interesting development stories to dive into today.
You know what I love about today's activity? It's one of those days that perfectly captures the reality of software development - the unglamorous but absolutely essential work of keeping things clean, stable, and moving forward. We're looking at 27 commits with no merged pull requests, which might sound quiet, but…
Let's start with the biggest story of the day - Kurt Mohler has been absolutely crushing it with MPS testing improvements. And when I say crushing it, I mean he literally crushed over 400 lines of test failures and exceptions. In two related commits, Kurt cleaned up the MPS test suite by removing tons of expected…
What's really cool about Kurt's work is that it shows MPS support is maturing. When you can remove that many test exceptions, it usually means the underlying functionality has gotten much more stable. That's fantastic news for anyone using PyTorch on Apple Silicon.
Now, here's where today gets really interesting from a development process perspective. Guilherme Leobas…
B…
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