Arguments

Part of the Fundamentals section of Coddy's Python journey — lesson 44 of 77.

An argument in a function is a value that you pass into the function when you call it. To add arguments to a function, we write them inside the parenthesis ():

def function_name(arg1, arg2, ...):
	code

We can name the arguments as we want, and we can write as many arguments as we need.

To call a function and pass arguments to it, we write:

function_name(value1, value2, value3, ...)

Passing too many arguments to a function that is expecting fewer arguments will cause the program to fail

Example of usage:

def is_even(number):
	if number % 2 == 0:
		print(f"{number} is even")
	else:
		print(f"{number} is odd")

for i in range(15, 34):
	is_even(i)
for i in range(153, 219):
	is_even(i)

Here we have a function called is_even that accepts one argument called number and prints if the number is even or odd. Then we call the function twice: one time for all the numbers between 15 and 34, and the second time for all the numbers between 153 and 219.

Challenge

Easy

Write a program that takes two integers as input and calls a function to calculate and print their product.

Cheat sheet

Function arguments are values passed into a function when calling it:

def function_name(arg1, arg2, ...):
    # function code

function_name(value1, value2, ...)

Example with one argument:

def is_even(number):
    if number % 2 == 0:
        print(f"{number} is even")
    else:
        print(f"{number} is odd")

is_even(4)

Note: Passing too many arguments to a function will cause an error.

Try it yourself

# Declare your function here
# print the result of a*b inside the function

a = int(input())
b = int(input())
# Call your function here with the arguments a and b