What are some advanced type hinting techniques in Python?
An example of an AI chatbot conversation about advanced type hinting techniques in Python.
What are some advanced type hinting techniques in Python?
Advanced type hinting techniques in Python include using TypeVar, Union, Optional, and generics. Would you like examples?
Yes, please provide examples for TypeVar and Union.
Sure! TypeVar allows you to create a generic type. For example: T = TypeVar('T') can be used in functions to accept any type. Union lets you specify multiple types, like def func(x: Union[int, str]) -> None: which accepts either an int or a str.
How about using Optional in type hints?
Optional is a shorthand for Union with None. For instance, def func(x: Optional[int]) -> None: means x can be an int or None.
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