How can I perform type checking on function parameters in Python?

How can I perform type checking on function parameters in Python?

You can use type hints in Python to specify the expected types of function parameters. For example:

def greet(name: str) -> str:
    return f'Hello, {name}!'

This indicates that the name parameter should be a string.

What happens if I pass the wrong type?

If you pass the wrong type, Python won't raise an error at runtime, but you can use tools like mypy to check for type errors before running your code.

Can I enforce type checking at runtime?

Yes, you can enforce type checking at runtime using the isinstance() function or by using decorators to validate types.

Are there any libraries that help with type checking?

Yes, libraries like pydantic and enforce can help you enforce type checking at runtime and provide more robust validation.