Awesome Python Typing 
Collection of awesome Python types, stubs, plugins, and tools to work with them.
Contents
- Static type checkers
- Dynamic type checkers
- Stub packages
- Tools
- Integrations
- Articles
- Communities
- Related
Static type checkers
- mypy - Optional static typing for Python 3 and 2 (PEP 484).
- pyre - Performant type-checker for Python 3.
- pytype - Tool to check and infer types for Python code - without requiring type annotations.
- PyCharm - IDE for Professional Developers.
- pyright - Fast type checker meant for large Python source bases. It can run in a “watch” mode and performs fast incremental updates when files are modified.
Dynamic type checkers
- enforce - Runtime type checking for integration testing and data validation.
- magic-constraints - Type introspection and runtime parameter type/value checking.
- pydantic - Data parsing using Python type hinting. Supports dataclasses.
- typeguard - Another one runtime type checker.
Stub packages
- Typeshed - Collection of library stubs for Python, with static types.
- django-stubs - Stubs for Django.
- djangorestframework-stubs - Stubs for DRF.
- numpy-stubs - Stubs for NumPy.
- dry-python/returns - Stubs for returns.
- sqlalchemy-stubs - Stubs for SQLAlchemy.
- grpc-stubs - Stubs for grpc.
- PyQt5-stubs - Stubs for PyQt5.
- ordered-set-stubs - Stubs for OrderedSet.
- pyspark-stubs - Stubs for PySpark.
- pythonista-stubs - Stubs for Pythonista.
Tools
Linters
- wemake-python-styleguide - The strictest and most opinionated python linter ever.
- flake8-mypy - Plugin for flake8 integrating mypy.
- flake8-pyi - Plugin for Flake8 that provides specializations for type hinting stub files.
- flake8-annotations-complexity - Plugin for flake8 to validate annotations complexity.
- flake8-annotations - Plugin for flake8 to check for presence of type annotations in function definitions.
Testing
- pytest-mypy - Mypy static type checker plugin for Pytest.
- pytest-mypy-plugins - Pytest plugin for testing mypy types, stubs, and plugins.
Working with types
- MonkeyType - Collects runtime types of function arguments and return values, and can automatically generate stub files or even add draft type annotations directly to your Python code based on the types collected at runtime.
- merge_pyi - Part of pytype toolchain, applies stub files onto source code.
- retype - Another tool to apply stubs to code.
- mypy-protobuf - Tool to generate mypy stubs from protobufs.
- mypyc - Compiles mypy-annotated, statically typed Python modules into CPython C extensions.
Mypy plugins
- pynamodb-mypy - Plugin for PynamoDB support.
- mypy-zope - Plugin for zope.interface support.
- mypy/plugins - Plugins already integrated into mypy.
Integrations
- mypy-PyCharm-plugin - Mypy integration for PyCharm.
- vim-mypy - Mypy integration for Vim.
- linter-mypy - Mypy integration for Atom.
- emacs-flycheck-mypy - Mypy integration for Emacs.
Articles
PEPs
- PEP-483 - About type hints theory.
- PEP-484 - About type annotations.
- PEP-544 - About protocols.
- PEP-561 - About distributing and packaging type information.
- PEP-563 - About postponed evaluation of annotations.
- PEP-586 - About literal types.
- PEP-3107 - About function annotations.
Tools' docs
- MyPy docs - General information about stubs.
Third-party articles
- 1-minute guide to real constants in Python - Full tutorial about
Finalconstants and inheritance. - Simple dependent types in Python - Full tutorial about
Literaltypes. - Typechecking Django and DRF - Full tutorial about type-checking django.
- Testing mypy stubs, plugins, and types - Full tutorial about testing mypy types.
Communities
- python/typing - Official typing gitter chat.
- TypedDjango - Official organisation gitter chat.
- PythonRu#typing - Russian slack chat (invites are here) about types.
Related
- awesome-python - Curated list of awesome Python frameworks, libraries, software and resources.
- python-typecheckers - List of Python type checkers: static and runtime.