students(Simple)py

import statistics


class Student:
    def __init__(self, name, age, grade):
        self.name = name
        self.age = age
        self.grade = grade

    @property
    def name(self):
        return self._name

    @property
    def age(self):
        return self._age

    @property
    def grade(self):
        return self._grade

    @name.setter
    def name(self, name):
        self._name = name

    @age.setter
    def age(self, age):
        self._age = age

    @grade.setter
    def grade(self, grade):
        self._grade = grade


class Course:
    def __init__(self, name, max_students):
        self.name = name
        self.max_students = max_students
        self.students = []

    def add_student(self, student):
        if len(self.students) < self.max_students:
            self.students.append(student)
            print("Student added successfully")
        else:
            print("Student could not be added")

    def get_average_grade(self):
        grades = []
        for student in self.students:
            grades.append(student.grade)
        return statistics.mean(grades)


if __name__ == "__main__":
    s1 = Student("George", 18, 85)
    s2 = Student("John", 17, 74)
    s3 = Student("Mike", 18, 32)
    s4 = Student("Spongebob", 16, 64)
    s5 = Student("Patrick", 19, 18)

    c1 = Course("Maths", 10)
    c1.add_student(s1)
    c1.add_student(s2)
    c1.add_student(s3)
    c1.add_student(s4)
    c1.add_student(s5)

    print(c1.get_average_grade())