What is the use of *args and **kwargs?
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In Python, *args and **kwargs are used in function definitions to allow a flexible number of arguments.
*args (Non-keyword arguments):
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*argsallows a function to accept any number of positional arguments. -
It collects them into a tuple.
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Useful when you don’t know beforehand how many arguments will be passed.
**kwargs (Keyword arguments):
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**kwargsallows a function to accept any number of keyword arguments. -
It collects them into a dictionary.
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Useful for passing a dynamic set of named arguments.
Using Both Together:
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You can use both in the same function to accept a mix of positional and keyword arguments.
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Order matters:
def func(pos_args, *args, kw_args, **kwargs)
Summary:
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*argsis used to pass a variable number of non-keyword arguments. -
**kwargsis used to pass a variable number of keyword arguments. -
They enhance function flexibility and are commonly used in decorators, wrappers, and dynamic APIs.
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