This program will simulate a small "database" of information about courses at a university.  The information for each course will be stored as an object of the <strong>Course</strong> class, and all the Course objects will be stored in a <strong>list</strong>.  With this program, you will be able to:
<ul>
    <li>See a list of courses</li>
    <li>Add a new course to the database</li>
    <li>Fetch more detailed information about a course</li>
</ul>
To do this, write a code file called <span class="code">course.py</span> which will define the <span class="code">Course</span> type so that it can be used in the program below and produce output as detailed in the output section.  Create another code file called <span class="code">course<span style="font-size: 1.1em;color: red">_tester</span>.py</span> containing the code from the program below -- which you <span style="font-size: 1.1em;color: red;background: yellow; font-weight: bold">should not change</span> -- and include it as part of your uploaded materials for this homework assignment.
<br/><br/>
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# Execute file containing class code

exec(open("course.py").read())

# An empty list, when the program first
# starts.  As the user starts to add 
# courses, it will be filled with items --
# those items being dictionaries containing
# course information

courses = []

choice = None
while choice != "0":

    print(
    """
    Create Courses
...

        </pre>
        </div>

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        <pre>

# Execute file containing class code

exec(open("course.py").read())

# An empty list, when the program first
# starts.  As the user starts to add 
# courses, it will be filled with items --
# those items being dictionaries containing
# course information

courses = []

choice = None
while choice != "0":

    print(
    """
    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Class
    3 - Display Class Information
    """
    )
    
    choice = input("Choice: ")
    print()

    # exit
    if choice == "0":
        print("Good-bye.")

    # display courses
    elif choice == "1":
        print("Courses:\n")
        for course in courses:
            print (course.basic_info())

    # add a course
    elif choice == "2":
        title = input ("What is the title?: ")
        instructor = input ("Who is the instructor?: ")
        hours = input ("How many semester hours?: ")
        description = input ("What is the course about?: ")

        new_course = Course(len(courses), title, instructor, hours, description)
        courses.append(new_course)

    # print info about a course
    elif choice == "3":
        print("Courses:\n")
        for course in courses:
            print (course.basic_info())
        print()

        id = int (input ("Which number course do you want?: "))
        print()

        print (courses[id])

    # some unknown choice
    else:
        print("Sorry, but", choice, "isn't a valid choice.")

    print()
  
input("\n\nPress the enter key to exit.")
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Note that because of <strong>user input</strong> and <strong>random values</strong>, the output will look different <strong>each</strong> time you run the program.

<h3>Program output example:</h3>

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    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 1

Courses:


    Create Courses
    
    0 - Quit
...
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    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 1

Courses:


    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 2

What is the title?: English Literature
Who is the instructor?: Professor John Doe
How many semester hours?: 3
What is the course about?: British literature to the 19th century

Added English Literature

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 2

What is the title?: Introductory Programming
Who is the instructor?: Professor Jane Doe
How many semester hours?: 4
What is the course about?: The basics of programming, taught in Java

Added Introductory Programming

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 2

What is the title?: Microbiology
Who is the instructor?: Professor Jim Doe
How many semester hours?: 3
What is the course about?: The life and chemistry of micro-organisms

Added Microbiology

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 1

Courses:

0 : English Literature
1 : Introductory Programming
2 : Microbiology

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 3

Courses:
0 : English Literature
1 : Introductory Programming
2 : Microbiology

Which number course do you want?: 2

title : Microbiology
description : The life and chemistry of micro-organisms
hours : 3
instructor : Professor Jim Doe

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 3

Courses:
0 : English Literature
1 : Introductory Programming
2 : Microbiology

Which number course do you want?: 0

title : English Literature
description : British literature to the 19th century
hours : 3
instructor : Professor John Doe

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 3

Courses:
0 : English Literature
1 : Introductory Programming
2 : Microbiology

Which number course do you want?: 1

title : Introductory Programming
description : The basics of programming, taught in Java
hours : 4
instructor : Professor Jane Doe

    Create Courses
    
    0 - Quit
    1 - List All Courses
    2 - Add a Course
    3 - Display Course Information
    
Choice: 0

Good-bye.


Press the enter key to exit.

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        <em><strong>Question:</em></strong> How did the process of editing this program go for you?  What were your main challenges and how did you overcome them?  What did you learn that may be of use as you move along in this class?