How do generics work in Python?

Can you explain how generics work in Python?

Sure! Generics in Python allow you to write flexible and reusable code by defining functions or classes that can operate on different data types.

How do I implement generics in a function?

You can use the TypeVar from the typing module to create a generic function. For example, def func[T](arg: T) -> T: allows arg to be of any type.

Are there any built-in generic types in Python?

Yes, Python's typing module includes built-in generic types like List, Dict, and Tuple, which you can use to specify the types of elements.

Can you give me an example of a generic class?

Certainly! Here's a simple example:

from typing import TypeVar, Generic

T = TypeVar('T')

class Box(Generic[T]):
    def __init__(self, item: T):
        self.item = item

    def get_item(self) -> T:
        return self.item