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Documentation

  * Type Checking (Pyre)
  * Static Analysis (Pysa)

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Pyre

A performant type-checker for Python 3

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Fast

Built from the ground up to support gradual typing and deliver
responsive incremental checks. Performant on large codebases with
millions of lines of Python.

Integrated

Designed to help improve code quality and development speed by
flagging type errors interactively in your terminal or live in your
favorite editor.

Fully Featured

Follows the typing standards introduced in PEPs 484, 526, 612, and is
being actively developed and constantly improved.

Built For Security

Pyre ships with Pysa, a security focused static analysis tool we've
built to reason about data flows in Python applications at scale.

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