Python Functions Exercise

Python function is a code block or group of statements that perform a particular task. We use reuse functions whenever required.

This Python functions exercise aims to help Python developers to learn and practice how to create a function, nested functions and use the function arguments effectively.

This exercise includes the following: –

• It contains Python function assignments, programs, questions, and challenges.
• Total 10 questions. The solution is provided for all questions and tested on Python 3.

This function exercise covers questions on concepts such as function creation, function calls, function arguments, inner functions, built-in functions. Let us know if you have any alternative solutions in the comment section below. It will help other developers.

Use Online Code Editor to solve exercise questions.

Exercise 1: Create a function in Python

Write a program to create a function that takes two arguments, name and age, and print their value.

# demo is the function name
def demo(name, age):
    # print value
    print(name, age)

# call function
demo("Ben", 25)

Exercise 2: Create a function with variable length of arguments

Write a program to create function func1() to accept a variable length of arguments and print their value.

Note: Create a function in such a way that we can pass any number of arguments to this function and the function should process them and display each argument’s value.

Read: variable length of arguments in functions

Function call:

# call function with 3 arguments
func1(20, 40, 60)

# call function with 2 arguments
func1(80, 100)

Expected Output:

Printing values
20
40
60


Printing values
80
100

def func1(*args):
    for i in args:
        print(i)

func1(20, 40, 60)
func1(80, 100)

Exercise 3: Return multiple values from a function

Write a program to create function calculation() such that it can accept two variables and calculate addition and subtraction. Also, it must return both addition and subtraction in a single return call.

Given:

def calculation(a, b):
    # Your Code

res = calculation(40, 10)
print(res)

Expected Output

50, 30

Expected Output:

def calculation(a, b):
    addition = a + b
    subtraction = a - b
    # return multiple values separated by comma
    return addition, subtraction

# get result in tuple format
res = calculation(40, 10)
print(res)

def calculation(a, b):
    return a + b, a - b

# get result in tuple format
# unpack tuple
add, sub = calculation(40, 10)
print(add, sub)

Exercise 4: Create a function with default argument

Write a program to create a function show_employee() using the following conditions.

• It should accept the employee’s name and salary and display both.
• If the salary is missing in the function call then assign default value 9000 to salary

See: Default arguments in function

Given:

showEmployee("Ben", 12000)
showEmployee("Jessa")

Expected output:

Name: Ben salary: 12000
Name: Jessa salary: 9000

# function with default argument
def show_employee(name, salary=9000):
    print("Name:", name, "salary:", salary)

show_employee("Ben", 12000)
show_employee("Jessa")

Exercise 5: Create an inner function to calculate the addition in the following way

• Create an outer function that will accept two parameters, a and b
• Create an inner function inside an outer function that will calculate the addition of a and b
• At last, an outer function will add 5 into addition and return it

# outer function
def outer_fun(a, b):
    square = a ** 2

    # inner function
    def addition(a, b):
        return a + b

    # call inner function from outer function
    add = addition(a, b)
    # add 5 to the result
    return add + 5

result = outer_fun(5, 10)
print(result)

Exercise 6: Create a recursive function

Write a program to create a recursive function to calculate the sum of numbers from 0 to 10.

A recursive function is a function that calls itself, again and again.

Expected Output:

55

def addition(num):
    if num:
        # call same function by reducing number by 1
        return num + addition(num - 1)
    else:
        return 0

res = addition(10)
print(res)

Exercise 7: Assign a different name to function and call it through the new name

Below is the function display_student(name, age). Assign a new name show_tudent(name, age) to it and call it using the new name.

Given:

def display_student(name, age):
    print(name, age)

display_student("Emma", 26)

You should be able to call the same function using

show_student(name, age)

def display_student(name, age):
    print(name, age)

# call using original name
display_student("Emma", 26)

# assign new name
showStudent = display_student
# call using new name
showStudent("Emma", 26)

Exercise 8: Generate a Python list of all the even numbers between 4 to 30

Expected Output:

[4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28]

print(list(range(4, 30, 2)))

Exercise 9: Find the largest item from a given list

x = [4, 6, 8, 24, 12, 2]

Expected Output:

24

x = [4, 6, 8, 24, 12, 2]
print(max(x))