Sample Solution

The following shows one way to solve this problem. It is not the only way this can be solved.

check13_sample.py

"""
File: check13_sample.py
Author: Brother Burton

Purpose: Demonstrates a basic procedure in a function.
"""

def display_regular(message):
    print(message)

def display_uppercase(message):
    # This could be done on one line, without creating a new variable new_message
    new_message = message.upper()
    print(new_message)

def display_lowercase(message):
    new_message = message.lower()
    print(new_message)

# The regular flow of the program starts here...
user_message = input("What is your message? ")

# Pass this variable to each of the functions above to do their work
display_regular(user_message)
display_uppercase(user_message)
display_lowercase(user_message)