Python Coding challenge - Day 692| What is the output of the following Python Code?

 

Code Explanation:

1) Defining the Decorator

def dec(f):

dec is a decorator that takes a function f as an argument.

The purpose is to wrap and modify the behavior of f.

2) Defining the Wrapper Function

def wrap(*args, **kwargs):

    return f(*args, **kwargs) + 10

wrap accepts any number of positional (*args) and keyword (**kwargs) arguments.

Inside wrap:

Calls the original function f with all passed arguments.

Adds 10 to the result of f.

3) Returning the Wrapper

return wrap

dec(f) returns the wrap function, which replaces the original function when decorated.

@dec

def g(x, y): return x*y

4) Decorating the Function

@dec is equivalent to:

g = dec(g)

Now g is actually the wrapper function returned by dec.

When you call g(2,3), you are calling wrap(2,3).

print(g(2,3))

5) Calling the Decorated Function

wrap(2,3) executes:

f(2,3) → original g(2,3) = 2*3 = 6

Add 10 → 6 + 10 = 16

Output

16

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