What are the new features of annotations in Python 3.10?
An example of an AI chatbot conversation about Python 3.10 annotations usage.
What are the new features of annotations in Python 3.10?
Python 3.10 introduced several enhancements to annotations, including the ability to use the | operator for union types.
Can you give me an example of how to use the | operator?
Sure! You can define a function like this: def func(x: int | str) -> None: which means x can be either an int or a str.
What other improvements were made to type hints?
Other improvements include the introduction of Parameter Specification Variables and the ability to use TypeGuard for more precise type narrowing.
How do these changes affect type checking?
These changes enhance type checking by allowing more expressive and flexible type annotations, making it easier to catch errors.
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