How do I deserialize lists in Python with type hints?

In Python, you can deserialize lists while maintaining type hints by using the `typing` module. Here's an example of how to do this with a function that takes a JSON string and returns a list of a specified type.

import json from typing import List, TypeVar, Any T = TypeVar('T') def deserialize_list(data: str, type_: T) -> List[T]: """Deserialize JSON string to a list of a specified type.""" data_list = json.loads(data) if not isinstance(data_list, list): raise ValueError("Provided data is not a list.") return [type_(item) for item in data_list] # Example usage json_data = '["1", "2", "3"]' result = deserialize_list(json_data, int) print(result) # Output: [1, 2, 3]

Python Deserialize Type Hints Lists JSON `typing` module Data Processing

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