Answered: Write a program named program61.py…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1. Write a program named program61.py

This program will have three functions, the main() create() and retrieve().

main() will call: create() and main() then calls retrieve()

create() will prompt the user to enter any number of course name | grade values. The course name ,AND calculated class GPA ( not the class grade ) are the written one value per line to a file named grades.txt ( review example of grades.txt below! ). Pressing Enter with no input value on the course name will exit the loop, close the file, print "File was created and closed" and return the bool value True to the main(). See Simple GPA Tip below.

retrieve() will open and read grades.txt. The function then will print the course names and Class GPA as shown below. The average of all class GPA values should be calculated and displayed to two decimal places and then return variable used for the GPA average to the main() . See sample run below in which 2 course names were entered, but note that more or fewer courses could have been entered. Also shown is what the contents of the grades.txt file would look like.

>>> %Run program61.py
Enter course name or Enter to quit: COP10000
Enter grade (integer) achieved: 94
Enter course name or Enter to quit: MAT2020
Enter grade (integer) achieved: 87
Enter course name or Enter to quit:
File was created and closed
Here is your GPA for the classes you entered:
COP10000 class GPA 4
MAT2020 class GPA 3
Your GPA for all classes entered is 3.50
>>>
grades.txt - Notepad
File Edit Format View Help
COP10000
4|
MAT2020
3
Ln 2, Col 2
100%
Windows (CRLF)
UTF-8

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