Readme.md

Student Performance Tracker Project

This Python program allows for the management and tracking of student performance through a command-line interface. It enables users to add student information, calculate averages, and determine passing status.

Classes

Student

The Student class represents a student with a name and their scores in various subjects.

Attributes

• name: The name of the student (string).
• scores: A list of scores (list of integers).

Methods

• __init__(self, name, scores): Initializes a student with a name and their scores.

• calculate_average(self) -> int: Calculates and returns the average score of the student. Returns 0 if there are no scores.

• is_passing(self, passing=40): Determines if the student is passing based on their average score. The default passing score is 40.

class Student:
    def __init__(self,name,scores) -> None:
        self.name = name
        self.scores = scores

    def calculate_average(self) -> int:
       if len(self.scores) > 0:
           return sum(self.scores) / len(self.scores)
       return 0

    def is_passing(self,passing = 40):
        average = self.calculate_average()
        return average >= passing

Performance_tracker

The Performance_tracker class manages a collection of students and their performance.

Attributes

• students_record: A dictionary that stores student names as keys and Student objects as values.

Methods

• __init__(self): Initializes an empty student record.

• add_students(self): Prompts the user to input student names and scores. The input loop continues until the user types "stop". Updates existing student scores if the name already exists.

class Performance_tracker:
    def __init__(self) -> None:
        self.students_record = {}

    def add_students(self):
        while True:
            try:
                student_name = input("\nEnter student name (or type stop to stop) : ").lower().strip()
                if student_name == "stop":
                    break
                grades = input("Enter marks in 3 subjects (math , science and English respectively) Ensure their is space in it :  ").strip()
                student_grades = [int(grade) for grade in grades.split()]

                if student_name in self.students_record:
                    self.students_record[student_name].scores = student_grades
                else:
                    self.students_record[student_name] = Student(student_name,student_grades)

                print(f"Updated dictionary : {self.get_students_data()}")


            except ValueError :
                print("Please enter a Valid Marks")
            except Exception as error :
                print(error)

• calculate_class_average(self): Calculates and prints the average score of the entire class.

• display_student_performance(self): Displays each student's average score and passing status.

• get_students_data(self): Returns a dictionary of student names and their scores.

def calculate_class_average(self):
        total_scores = []
        for i in self.students_record.values():
            total_scores.extend(i.scores)
        average = sum(total_scores) / len(total_scores)
        print(f"Class Average : {average:.2f}")

    def display_student_performance(self):
        for student in self.students_record.values():
            average = student.calculate_average()
            passing = f"PASS" if student.is_passing() else "FAIL"
            print(f"{student.name} : Average : {average:.2f} , Status : {passing}")

    def get_students_data(self):
        return {name: student.scores for name, student in self.students_record.items()}

Usage

1. Adding Students:

   • Run the program, and it will prompt you to enter student names and their scores in three subjects (math, science, and English).
   • Enter scores separated by spaces.
   • Type "stop" to finish adding students.

2. Displaying Performance:

   • After adding students, the program will display each student's average score and their passing status (PASS/FAIL).

3. Calculating Class Average:

   • The program will also calculate and display the average score of the entire class.

Example

Enter student name (or type stop to stop) : John
Enter marks in 3 subjects (math, science and English respectively): 45 55 65
Updated dictionary : {'john': [45, 55, 65]}

Enter student name (or type stop to stop) : Jane
Enter marks in 3 subjects (math, science and English respectively): 30 40 50
Updated dictionary : {'john': [45, 55, 65], 'jane': [30, 40, 50]}

Enter student name (or type stop to stop) : stop

john : Average : 55.00 , Status : PASS
jane : Average : 40.00 , Status : PASS
Class Average : 47.50