Function Arguments in Python*

*Why are Arguments Important?*

Arguments allow us to pass data into a function so it can act on different values — making the function dynamic instead of static.

✅ *Types of Function Arguments*

*1. Positional Arguments*

These are the most common — the order matters.

def greet(name, age):
print(fname is age years old.)

greet(Alex, 25)


*2. Keyword Arguments*

You specify the name of the argument, so order doesn’t matter.

greet(age=25, name=Alex)


*3. Default Arguments*

Provide a default value so the argument becomes optional.

def greet(name, city=Delhi):
print(fname is from city)

greet(Riya) Uses default city
greet(Riya, Mumbai) Overrides default



*4. Variable-length Arguments*

*args for multiple positional values (tuple)

**kwargs for multiple keyword values (dictionary)


def total(*numbers):
return sum(numbers)

print(total(2, 4, 6)) Outputs: 12

def display_info(**data):
for key, value in data.items():
print(fkey = value)

display_info(name=John, age=30)



*Mini Project: Tip Calculator with Tax*

def calculate_total(bill, tip_percent=10, tax_percent=5):
tip = bill * (tip_percent / 100)
tax = bill * (tax_percent / 100)
return bill + tip + tax

amount = float(input(Enter bill amount: ))
total_amount = calculate_total(amount, tip_percent=15)
print(fTotal Amount to Pay: ₹total_amount:.2f)


This project demonstrates:

- Positional and default arguments

- Mathematical logic

- Function flexibility