Python

Bae.py

class Bae:
    """dtring for Bae"""
    much = 1.50  # class variable
    students = 0  # we use is class variable to count the number of instances in this classes

    def __init__(self, first, last, grade, classement):
        self.first = first  # These are atributes for the class
        self.last = last
        self.grade = grade
        self.classement = classement

        Bae.students += 1  # counter for instances

    def raisement(self):
        self.grade = int(
            self.grade * Bae.much)  # how much are we going to add in grade / this is a methode called raisement

    # the class variable can also be accesed by instances : we write self.much

    @classmethod
    def setup(cls, amount):
        cls.much = amount


std_1 = Bae('Aymen', 'Akrouf', 14, 4)  # this is an instance of a class
std_2 = Bae('Aziz', 'Zermout', 20, 1)

Bae.setup(1.08)

print(Bae.much)
print(std_1.much)
print(std_2.much)

print(Bae.students)  # counter
print(std_1.grade)

std_1.raisement()  # this is where we introduced the methode within the instance
print(std_1.grade)

print(std_2.first + ' ' + std_2.last, std_2.grade)
print('{} {}'.format(std_1.first, std_1.last))

print(std_1.much)  # here we can see that we are accessing the class variable using the instance

print(std_1.__dict__)
std_1.much = 1.40
std_1.raisement()  # here we are introducing the methode again
print(std_1.__dict__)
print(std_1.much)