What are some common mistakes when using the Python typing module?
An example of an AI chatbot conversation about common mistakes in Python's typing module.
What are some common mistakes when using the Python typing module?
Some common mistakes include not using the correct type hints, confusing Optional with Union, and forgetting to import necessary types.
Can you explain the difference between Optional and Union?
Sure! Optional[X] means that the value can be of type X or None, while Union[X, Y] means the value can be of type X or Y.
What happens if I forget to import a type?
If you forget to import a type, you'll get a NameError when you try to use it in your type hints.
Are there any tools to help catch these mistakes?
Yes, tools like mypy can help you catch type-related mistakes in your Python code.
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