What are the best practices for using *args and **kwargs in Python?

What are the best practices for using *args and **kwargs in Python?

Using *args and **kwargs allows for flexible function arguments. Best practices include using them when necessary, documenting their use, and avoiding overuse to maintain code readability.

Can you give me an example of when to use them?

Sure! Use *args when you want to pass a variable number of positional arguments, like in a function that sums numbers. Use **kwargs for keyword arguments, like when you want to accept additional options in a function.

Are there any performance considerations?

Yes, while *args and **kwargs provide flexibility, they can introduce overhead. If performance is critical, consider using explicit parameters.

How do they affect function signatures?

They allow for more dynamic function signatures, but can make them less clear. Always document your functions to clarify what arguments are expected.