Lab 11: File I/O

Points Possible: 100

Due: Thursday, November 14th

In this lab, we will write programs using Python file input and output commands.

Use the File I/O guide for assistance.

Submission:

Submit a Python file for each of the programs.

Program 1: Word Counter

Write a program word_counter.py that reads from a text file, counts the number of words in the file, and outputs the count to the console.

Save the file called sample.txt
Your program should read the contents of sample.txt and count the words.
For simplicity, you can define a word as any sequence of characters separated by whitespace.

Sample Output:

Word count: 46

Save the program as word_counter.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, file reading: 5 points, word count calculation: 10 points, output: 5 points)
Total: 25 points

Program 2: Uppercase Writer

Write a program uppercase_writer.py that reads from one file, converts its content to uppercase, and writes the uppercase text to a new file.

Create a file named textfile.txt with sample lowercase text.
Read the contents of textfile.txt and write the uppercase version of the content to a new file named uppercase_output.txt.
After running the program, uppercase_output.txt should contain the uppercase text from textfile.txt.

Sample Input (textfile.txt):

hello world  
this is a test file  

Sample Output (uppercase_output.txt):

HELLO WORLD  
THIS IS A TEST FILE  

Save the program as uppercase_writer.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, file reading: 5 points, text transformation: 10 points, file writing: 5 points)
Total: 25 points

Program 3: Grade Average Calculator

Write a program grade_calculator.py that reads a list of grades from a file, calculates the average grade, and appends the average to the end of the file.

Create a file called grades.txt with a list of integer grades, one per line.
Read all the grades, compute the average, and append the average grade to the end of the file in the format:
```
Average: [calculated_average]
```

Sample Input (grades.txt):

Sample Output (grades.txt after running the program):






Average: 86.6

Save the program as grade_calculator.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, file reading: 5 points, average calculation: 10 points, file writing/appending: 5 points)
Total: 25 points

Program 4: Student Grades Report

Write a program student_grades_report.py that reads student grades from a file, processes each student’s grades, and writes a report with the highest, lowest, and average grades for each student to a new file.

Create a file student_grades.txt with each line containing a student’s name followed by a list of grades, separated by commas, e.g.:
```
Alice,88,90,79  
Bob,72,85,91  
Charlie,100,95,100  
```
Read each line from student_grades.txt, calculate the highest, lowest, and average grade for each student, and write these results to a new file grades_report.txt in the following format:
```
Alice - Highest: 90, Lowest: 79, Average: 85.67  
Bob - Highest: 91, Lowest: 72, Average: 82.67  
Charlie - Highest: 100, Lowest: 95, Average: 98.33  
```

Save the program as student_grades_report.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, file reading: 5 points, data processing: 15 points, file writing: 5 points)
Total: 25 points