Stories by ocamoss

Designing a Python Language Server: Lessons from Pyre That Shaped Pyrefly

PyCon 2026 Typing Summit: Thu May 14, 1-5pm

Comparing Python Type Checkers: Typing Spec Conformance

Pandas' Public API Is Now Type-Complete

Python Type Checker Comparison: Empty Container Inference

PyTorch Now Uses Pyrefly for Type Checking

Making Pyrefly Diagnostics 18x Faster

Type Narrowing Patterns in Pyrefly That Make Type Checking More Intuitive

Making a Strava-Style Heatmap with My Citibike Ride History

Python Typing Survey 2025: Code Quality and Flexibility Top Reasons for Adoption

Reforging the ReScript Build System

What can I do with ReScript?

Fly through data validation with Pyrefly's new Pydantic integration

ReScript 12

Pyrefly Beta (fast type checker and language server for Python) [video]

Pyrefly: Type Checking 1.8M Lines of Python per Second [video]

Talk Python Podcast Ep 523 – Pyrefly: Fast, IDE-Friendly Typing for Python

Python developers are embracing type hints