How to Calculate a Student's Grade in Python

Submitted by razormist on Saturday, April 12, 2025 - 23:35.

In this tutorial, we’ll learn how to program "How to Calculate a Student's Grade in Python." The objective is to accurately calculate the total student grade and provide a remark. This tutorial will guide you through the process step by step on how to create a grade calculation process. By the end, you’ll have a clear understanding of how to efficiently perform this task in Python.

This topic is straightforward to understand. Just follow the instructions I provide, and you’ll complete it with ease. The program I’ll demonstrate will show you the correct and efficient way to calculate a student's grade. So, let’s dive into the coding process!

Getting Started:

First you will have to download & install the Python IDLE's, here's the link for the Integrated Development And Learning Environment for Python https://www.python.org/downloads/.

Creating Main Function

This is the main function of the application. The following code will display a simple GUI in terminal console that will display program. To do this, simply copy and paste these blocks of code into the IDLE text editor.

def calculate_grade(marks):
 
    total = sum(marks)
  
    average = total / len(marks)
   
    if average >= 90:
        grade = 'A'
    elif average >= 80:
        grade = 'B'
    elif average >= 70:
        grade = 'C'
    elif average >= 60:
        grade = 'D'
    else:
        grade = 'F'
   
    return total, average, grade
 
 
while True:
    print("\n============= Calculate a Student's Grade =============\n")
 
    s1 = int(input("Enter Subject 1 Grade (1-100): "))
    s2 = int(input("Enter Subject 2 Grade (1-100): "))
    s3 = int(input("Enter Subject 3 Grade (1-100): "))
    s4 = int(input("Enter Subject 4 Grade (1-100): "))
    s5 = int(input("Enter Subject 5 Grade (1-100): "))
 
 
    student_marks = [s1, s2, s3, s4, s5]
 
    total, average, grade = calculate_grade(student_marks)
 
    print("\n")
    print(f"Total Marks: {total}")
    print(f"Average Marks: {average:.2f}")
    print(f"Grade: {grade}")
 
    opt = input("\nDo you want to try again?(yes/no): ")
       
    if opt.lower() == 'yes':
        ret=False
    elif opt.lower() == 'no':
        ret=True
        print("Exiting program....")
    else:
        print("Please enter yes/no:")
        break
 
    if ret == False:
        continue

This program continuously flattens a nested list by going through each sublist and collecting all the individual elements into a single list, displaying the result each time until the user chooses to exit.

Output:

There you have it we successfully created How to Calculate a Student's Grade in Python. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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