MyPy – Static Type Checker for Python

MyPy is a static type checker for Python that helps developers catch type-related errors before runtime. It works by analyzing your code and ensuring that the types you declare are consistent throughout your project. MyPy is especially useful for large codebases or team projects, improving reliability, maintainability, and readability without changing how Python executes your code.

---

Installation:

pip install mypy

Example usage:

# Check a single file for type errors
mypy app.py

# Check an entire project directory
mypy src/

# Ignore missing imports
mypy --ignore-missing-imports app.py

---

PyPI page: https://pypi.org/project/mypy/
GitHub page: https://github.com/python/mypy

---

3 Project Ideas:

1. Add MyPy to a Django or FastAPI project to improve type safety and reduce runtime bugs.
2. Integrate MyPy with CI/CD pipelines for automatic type checking before deployment.
3. Build a code quality automation tool that combines MyPy, Black, and Flake8.