Python User Function Exercises

Let’s check out some exercises that will help understand “Defining Functions” better.

Exercise 16-a

Define a function named f_1 which will print "Hello World!"

Hint 1

The syntax for defining functions is:

def FunctionName ():

Hint 2

After your 1st line of function definition your statement needs to be indented either as:

1 Tab key

4 Space characters.

Solution

def f_1():
    print("Hello World!")

Exercise 16-b

Now define the same function f_1 and assign it to variable ans_1. See what happens.

Hint 1

The syntax for defining functions is:

def FunctionName ():

Hint 2

After your 1st line of function definition your statement needs to be indented either as:

1 Tab key

4 Space characters.

Solution

ans_1 = f_1()

Exercise 16-c

Now define the same f_1 function this time so that it returns a value instead of just printing it..

Hint 1

return keyword will allow your function to return a value.

Solution

def f_1():
    return "Hello World!"

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