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*args vs **kwargs in Python
In Python, *args and **kwargs are used to pass a variable number of non-keyword (positional) arguments and keyword arguments, respectively, to a function. They are often used when you need flexibility in the number of arguments a function can accept.
*args
(Arbitrary Positional Arguments):Think of
*args
as a way to pass multiple values to a function without naming them.It allows you to pass as many values as you want, and the function collects them into a special list-like structure called a tuple.
This is useful when you’re not sure how many values you’ll need to pass.
Let’s try to understand the concept using a simple analogy or metaphor to make it more understandable:
Imagine you’re hosting a party, and you have a guest of honour, which is like arg1
in the function. This guest of honour is the most important person at the party. However, you also have a bunch of other friends (represented by *args
) coming to the party. These friends are important too, but there can be many of them, and you want to be able to greet them all.
arg1
is like your guest of honour, the most important person.*args
is like your other friends who are also coming to the party.