What do *args and **kwargs mean?
In Python, *args and **kwargs are special syntax used in function definitions to handle a varying number of positional and keyword arguments, respectively. They provide flexibility when defining functions that can accept a variable number of arguments without having to explicitly specify them in the function signature.
Here's how *args and **kwargs work with examples:
*Using args (Arbitrary Positional Arguments)
The *args syntax allows a function to accept an arbitrary number of positional arguments. These arguments are packed into a tuple and can be accessed using index notation.
**Using kwargs (Arbitrary Keyword Arguments)
The **kwargs syntax allows a function to accept an arbitrary number of keyword arguments. These arguments are packed into a dictionary where the keys are the argument names and the values are their corresponding values.
**Combining *args and kwargs
You can use both *args and **kwargs in the same function definition. However, *args must appear before **kwargs.
The *args and **kwargs allow you to create more flexible and versatile functions that can handle different numbers of arguments. *args collects positional arguments into a tuple, while **kwargs collects keyword arguments into a dictionary. Using these special syntaxes makes your functions more adaptable to various use cases.