Mypy

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First steps

Introduction
Getting started
Using mypy with an existing codebase

Cheat sheets

Type hints cheat sheet (Python 3)
Type hints cheat sheet (Python 2)

Type system reference

Built-in types
Type inference and type annotations
Kinds of types
Class basics
Protocols and structural subtyping
Type checking Python 2 code
Dynamically typed code
Casts and type assertions
Duck type compatibility
Stub files
Generics
More types
Literal types
Final names, methods and classes
Metaclasses

Configuring and running mypy

Running mypy and managing imports
The mypy command line
The mypy configuration file
Inline configuration
Mypy daemon (mypy server)
Using installed packages
Extending and integrating mypy
Automatic stub generation (stubgen)

Miscellaneous

Common issues and solutions
Supported Python features
Error codes
Error codes enabled by default
Error codes for optional checks
New features in Python 3.6
Additional features
Frequently Asked Questions

Mypy

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