|
| 1 | +# Student Performance Tracker |
| 2 | + |
| 3 | +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. |
| 4 | + |
| 5 | +## Classes |
| 6 | + |
| 7 | +### Student |
| 8 | + |
| 9 | +The `Student` class represents a student with a name and their scores in various subjects. |
| 10 | + |
| 11 | +#### Attributes |
| 12 | + |
| 13 | +- `name`: The name of the student (string). |
| 14 | +- `scores`: A list of scores (list of integers). |
| 15 | + |
| 16 | +#### Methods |
| 17 | + |
| 18 | +- `__init__(self, name, scores)`: Initializes a student with a name and their scores. |
| 19 | +- `calculate_average(self) -> int`: Calculates and returns the average score of the student. Returns `0` if there are no scores. |
| 20 | + |
| 21 | +- `is_passing(self, passing=40)`: Determines if the student is passing based on their average score. The default passing score is `40`. |
| 22 | + |
| 23 | +```python |
| 24 | +class Student: |
| 25 | + def __init__(self,name,scores) -> None: |
| 26 | + self.name = name |
| 27 | + self.scores = scores |
| 28 | + |
| 29 | + def calculate_average(self) -> int: |
| 30 | + if len(self.scores) > 0: |
| 31 | + return sum(self.scores) / len(self.scores) |
| 32 | + return 0 |
| 33 | + |
| 34 | + def is_passing(self,passing = 40): |
| 35 | + average = self.calculate_average() |
| 36 | + return average >= passing |
| 37 | +``` |
| 38 | + |
| 39 | +### Performance_tracker |
| 40 | + |
| 41 | +The `Performance_tracker` class manages a collection of students and their performance. |
| 42 | + |
| 43 | +#### Attributes |
| 44 | + |
| 45 | +- `students_record`: A dictionary that stores student names as keys and `Student` objects as values. |
| 46 | + |
| 47 | +#### Methods |
| 48 | + |
| 49 | +- `__init__(self)`: Initializes an empty student record. |
| 50 | + |
| 51 | +- `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. |
| 52 | + |
| 53 | +```python |
| 54 | +class Performance_tracker: |
| 55 | + def __init__(self) -> None: |
| 56 | + self.students_record = {} |
| 57 | + |
| 58 | + def add_students(self): |
| 59 | + while True: |
| 60 | + try: |
| 61 | + student_name = input("\nEnter student name (or type stop to stop) : ").lower().strip() |
| 62 | + if student_name == "stop": |
| 63 | + break |
| 64 | + grades = input("Enter marks in 3 subjects (math , science and English respectively) Ensure their is space in it : ").strip() |
| 65 | + student_grades = [int(grade) for grade in grades.split()] |
| 66 | + |
| 67 | + if student_name in self.students_record: |
| 68 | + self.students_record[student_name].scores = student_grades |
| 69 | + else: |
| 70 | + self.students_record[student_name] = Student(student_name,student_grades) |
| 71 | + |
| 72 | + print(f"Updated dictionary : {self.get_students_data()}") |
| 73 | + |
| 74 | + |
| 75 | + except ValueError : |
| 76 | + print("Please enter a Valid Marks") |
| 77 | + except Exception as error : |
| 78 | + print(error) |
| 79 | +``` |
| 80 | + |
| 81 | +- `calculate_class_average(self)`: Calculates and prints the average score of the entire class. |
| 82 | + |
| 83 | +- `display_student_performance(self)`: Displays each student's average score and passing status. |
| 84 | + |
| 85 | +- `get_students_data(self)`: Returns a dictionary of student names and their scores. |
| 86 | + |
| 87 | +```python |
| 88 | +def calculate_class_average(self): |
| 89 | + total_scores = [] |
| 90 | + for i in self.students_record.values(): |
| 91 | + total_scores.extend(i.scores) |
| 92 | + average = sum(total_scores) / len(total_scores) |
| 93 | + print(f"Class Average : {average:.2f}") |
| 94 | + |
| 95 | + def display_student_performance(self): |
| 96 | + for student in self.students_record.values(): |
| 97 | + average = student.calculate_average() |
| 98 | + passing = f"PASS" if student.is_passing() else "FAIL" |
| 99 | + print(f"{student.name} : Average : {average:.2f} , Status : {passing}") |
| 100 | + |
| 101 | + def get_students_data(self): |
| 102 | + return {name: student.scores for name, student in self.students_record.items()} |
| 103 | + |
| 104 | +``` |
| 105 | + |
| 106 | +## Usage |
| 107 | + |
| 108 | +1. **Adding Students**: |
| 109 | + |
| 110 | + - Run the program, and it will prompt you to enter student names and their scores in three subjects (math, science, and English). |
| 111 | + - Enter scores separated by spaces. |
| 112 | + - Type "stop" to finish adding students. |
| 113 | + |
| 114 | +2. **Displaying Performance**: |
| 115 | + |
| 116 | + - After adding students, the program will display each student's average score and their passing status (PASS/FAIL). |
| 117 | + |
| 118 | +3. **Calculating Class Average**: |
| 119 | + - The program will also calculate and display the average score of the entire class. |
| 120 | + |
| 121 | +## Example |
| 122 | + |
| 123 | +```plaintext |
| 124 | +Enter student name (or type stop to stop) : John |
| 125 | +Enter marks in 3 subjects (math, science and English respectively): 45 55 65 |
| 126 | +Updated dictionary : {'john': [45, 55, 65]} |
| 127 | + |
| 128 | +Enter student name (or type stop to stop) : Jane |
| 129 | +Enter marks in 3 subjects (math, science and English respectively): 30 40 50 |
| 130 | +Updated dictionary : {'john': [45, 55, 65], 'jane': [30, 40, 50]} |
| 131 | + |
| 132 | +Enter student name (or type stop to stop) : stop |
| 133 | + |
| 134 | +john : Average : 55.00 , Status : PASS |
| 135 | +jane : Average : 40.00 , Status : PASS |
| 136 | +Class Average : 47.50 |
| 137 | +``` |
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