*args & **kwargs

# *args — variable positional arguments
def add_all(*args):
    print(f"Args: {args}")
    return sum(args)

print(add_all(1, 2))          # 3
print(add_all(1, 2, 3, 4, 5)) # 15

# **kwargs — variable keyword arguments
def print_info(**kwargs):
    for key, value in kwargs.items():
        print(f"  {key}: {value}")

print_info(name="Alice", age=25, city="Mumbai")

# Combining all types (order matters!)
def mixed(required, *args, default=10, **kwargs):
    print(f"Required: {required}")
    print(f"Extra args: {args}")
    print(f"Default: {default}")
    print(f"Kwargs: {kwargs}")

mixed("hello", 1, 2, 3, default=20, x=100, y=200)

# Unpacking with * and **
def greet(name, age, city):
    print(f"{name}, {age}, from {city}")

data = ["Alice", 25, "Mumbai"]
greet(*data)  # unpacks list as positional args

info = {"name": "Bob", "age": 30, "city": "Delhi"}
greet(**info)  # unpacks dict as keyword args