Where and how are named parameters stored when calling a function in Python?

In Python, when calling a function with named parameters (keyword arguments), they are stored as a dictionary inside the function.

For example, if a function is declared as:

def func(a, b=2, **kwargs):
    pass

and called like this:

func(1, b=3, c=4, d=5)

then the parameters a and b will be accessible as regular arguments, and the additional named parameters c and d will be stored in the kwargs dictionary.

Inside the function, Python creates a local dictionary where the keys are the parameter names and the values are the passed arguments. This makes it convenient to work with a variable number of named parameters.

If the function does not use **kwargs, then calling it with unnamed parameters not explicitly declared will result in an error.

Thus, named parameters are stored in the function's local scope as variables and/or in the **kwargs dictionary.