What are the type checking tools available in Python 3.10?

What are the type checking tools available in Python 3.10?

Python 3.10 introduced several type checking tools, including built-in support for type hints, the typing module, and third-party tools like mypy and pyright. These tools help ensure type safety in your code.

Can you explain how to use mypy for type checking?

Certainly! To use mypy, first install it via pip with pip install mypy. Then, you can annotate your Python code with type hints and run mypy your_script.py to check for type errors.

What are type hints and why are they important?

Type hints are a way to indicate the expected data types of variables, function parameters, and return values in Python. They improve code readability and help catch errors early during development.

Are there any new features in Python 3.10 related to type checking?

Yes, Python 3.10 introduced several new features like the Union type syntax using the pipe operator (|), which simplifies type annotations.