Decorators

Decorators\n\nA decorator is a higher‑order function that wraps another function to extend its behavior without modifying the original code.\n\npython\ndef debug(func):\n def wrapper(*args, **kwargs):\n print(f'Calling {func.__name__} with args={args}, kwargs={kwargs}')\n result = func(*args, **kwargs)\n print(f'{func.__name__} returned {result}')\n return result\n return wrapper\n\n@debug\ndef add(a, b):\n return a + b\n\nadd(3, 4)\n\n\nThe @debug line is syntactic sugar for add = debug(add).\n