Media Summary: We're thrilled to announce with this release that Introducing a brand new open source project, Coding agents are writing more Python than ever, but in large projects, generated code is prone to type errors. In this video, we ...

Pyrefly V1 0 0 Setup - Detailed Analysis & Overview

We're thrilled to announce with this release that Introducing a brand new open source project, Coding agents are writing more Python than ever, but in large projects, generated code is prone to type errors. In this video, we ... Danny Yang and Sam Goldman, both Software Engineers at Meta, speak with host Gregory M. Kapfhammer about the Rust-based ... Python is easy to use, but one major problem in large Python codebases is type safety. You can pass the wrong type to a function, ... How do you type-check 1.8 million lines of Python per second? Neil Mitchell explains how

Switching from MyPy to TY for Python type checking will dramatically improve your development workflow. This video ...

Photo Gallery

Pyrefly v1.0.0 Setup
Pyrefly v1.0.0 is here!
Announcing Pyrefly Beta
A first look at Pyrefly 1.0
Introducing Pyrefly: A new type checker and IDE experience for Python
How to get your agent to use Pyrefly for type checking
SE Radio 725: Danny Yang and Sam Goldman on the Pyrefly Type Checker
PYCON UK 2025: Pyrefly  A Scalable Type Checker for a Unified IDE Experience, Kyle Into
Pyrefly: Meta's New Python Type Checker is Absurdly Fast | Coding
Meta Just Dropped a NEW Python Type Checker!
Python Needs Type Safety - Pyrefly Fixes It
Neil Mitchell: Pyrefly: Type Checking 1.8 Million Lines of Python Per Second
View Detailed Profile
Pyrefly v1.0.0 Setup

Pyrefly v1.0.0 Setup

Python Level Up: Meta Releases

Pyrefly v1.0.0 is here!

Pyrefly v1.0.0 is here!

Pyrefly

Announcing Pyrefly Beta

Announcing Pyrefly Beta

We're thrilled to announce with this release that

A first look at Pyrefly 1.0

A first look at Pyrefly 1.0

DevwithSerdar

Introducing Pyrefly: A new type checker and IDE experience for Python

Introducing Pyrefly: A new type checker and IDE experience for Python

Introducing a brand new open source project,

How to get your agent to use Pyrefly for type checking

How to get your agent to use Pyrefly for type checking

Coding agents are writing more Python than ever, but in large projects, generated code is prone to type errors. In this video, we ...

SE Radio 725: Danny Yang and Sam Goldman on the Pyrefly Type Checker

SE Radio 725: Danny Yang and Sam Goldman on the Pyrefly Type Checker

Danny Yang and Sam Goldman, both Software Engineers at Meta, speak with host Gregory M. Kapfhammer about the Rust-based ...

PYCON UK 2025: Pyrefly  A Scalable Type Checker for a Unified IDE Experience, Kyle Into

PYCON UK 2025: Pyrefly A Scalable Type Checker for a Unified IDE Experience, Kyle Into

Pyrefly

Pyrefly: Meta's New Python Type Checker is Absurdly Fast | Coding

Pyrefly: Meta's New Python Type Checker is Absurdly Fast | Coding

Meta just open-sourced

Meta Just Dropped a NEW Python Type Checker!

Meta Just Dropped a NEW Python Type Checker!

Meta just released

Python Needs Type Safety - Pyrefly Fixes It

Python Needs Type Safety - Pyrefly Fixes It

Python is easy to use, but one major problem in large Python codebases is type safety. You can pass the wrong type to a function, ...

Neil Mitchell: Pyrefly: Type Checking 1.8 Million Lines of Python Per Second

Neil Mitchell: Pyrefly: Type Checking 1.8 Million Lines of Python Per Second

How do you type-check 1.8 million lines of Python per second? Neil Mitchell explains how

MyPy Is DEAD! Astral's TY Is The New Future Of Python Type Checking

MyPy Is DEAD! Astral's TY Is The New Future Of Python Type Checking

Switching from MyPy to TY for Python type checking will dramatically improve your development workflow. This video ...