mypy

Lesson in the Python Roadmap · Stage 19: Static Typing

Last updated 14 September 2026

What is mypy?

mypy is an optional static type checker for Python that aims to combine the benefits of dynamic (or "duck") typing and static typing. Mypy combines the expressive power and convenience of Python with a powerful type system and compile-time type checking. Mypy type checks standard Python programs; run them using any Python VM with basically no runtime overhead.

Study this in the interactive course See the whole Python roadmap

Free resources to learn mypy

Official docsmypy documentation
Open sourcepython/mypy

mypy: common questions

Can I learn mypy in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain mypy in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this mypy tutorial for beginners?

It is lesson 55 of 85 in the free Python roadmap, in stage 19, Static Typing. If you are new to Python, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.