Quiz 4

Points Possible: 100

Date: Thursday, December 5th

Background

This quiz is based on the topics covered in weeks 11 through 14. There are 2 programming problems. You are allowed to use the Thonny IDE. Please see the grading rubric for each programming problem. Scratch paper and a simple calculator are allowed. You may also use the guides provided on the course web page: https://cmsc105-f24.github.io/guides

Submission

• Submit a quiz4.txt file on Blackboard with your answers.
• Submit any Python code from the Thonny IDE on Blackboard.

Program 1 (50 points)

You are tasked with creating a simple Python program to process a log file. The log file, named server_logs.txt, contains information about server requests in the following format:

server_logs.txt

2024-11-21 10:15:30 INFO User123 accessed /home
2024-11-21 10:20:45 ERROR User456 failed to access /dashboard
2024-11-21 10:25:50 WARNING User789 exceeded rate limit
2024-11-21 10:30:15 INFO User123 logged out

Each line contains a timestamp, a log level (INFO, ERROR, WARNING), a user identifier (e.g., User123), and a message.

The server_logs.txt file can be downloaded using this link: server_logs.txt

Remember to save the file in the same folder as your program.

Write a program to:

• Read the contents of the server_logs.txt file.
• Count the total number of lines in the file.
• Count how many times each log level (INFO, ERROR, WARNING) appears.
• Extract and save all lines with the ERROR log level into a new file called error_logs.txt.
• Print the results to the console:
  • Total number of lines.
  • Counts for each log level (INFO, ERROR, WARNING).
  • Confirmation that the error_logs.txt file has been created.

If the file server_logs.txt contains the sample data above, your program should print the output to the screen:

sample output:

Total lines: 4
INFO: 2
ERROR: 1
WARNING: 1
The error logs have been saved to error_logs.txt.

The contents of error_logs.txt should be:

error_logs.txt

2024-11-21 10:20:45 ERROR User456 failed to access /dashboard

• Save your program as log.py and attach it to Blackboard.
• (Comments: 5 points, file input: 10 points, computation: 20 points, file output: 10 points, print output: 5 points)

Problem 2 (50 points)

Create a Course class and contains the following private data fields: netid, admission_date, major_field_study, course_name, score, and the following methods:

• A constructor (__init__) with the arguments course_name, score, netid, admission_date, major_field_study. Please note that all the fields except the score field are strings. The score is of type float.
• Get and set methods for the score field only.
• printDetails() method that prints the netid, admission_date, major_field_study, course_name and score.
• calculateGrade() method that returns the following grade using the following criteria:
  • Grade = “A” if the score is between 90 to 100 (including both 90 and 100)
  • Grade = “B” if the score is between 80 to 89 (including both)
  • Grade = “C” if the score is between 70 to 79 (including both)
  • Grade = “D” if the score is between 60 to 69 (including both)
  • Otherwise, Grade = “F”

Draw the UML diagram for the Course class.

Write test code that prompts the instructor to enter the netid, admission_date, major_field_study, course_name and score. Initiate an object of Course class, print the details and also print the final grade.

Sample run:

Enter student's netid: dbalash
Enter student's admission_date: 07-28-2023
Enter student's major: Computer Science
Enter student's course name: Algorithms
Enter student's score: 94


Student Details:

netid: dbalash
Admission Data: 07-28-2023
Major Field of Study: Computer Science
Course Name: Algorithms
Score: 94

Final Grade: A

• Save your program as course.py and attach it to Blackboard.
• Take a picture of your UML diagram and attach it to Blackboard.
• (Comments: 5 points, class and methods: 20 points, test code: 10 points, UML: 15 points)