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Classes in python

A mold is an object that always produces elements of the same shape. In the same way a class is a container which allows to create elements of the same form called objects. As we can create a cake from a mold, we can also create objects (class instances) from a class. A class can have properties that describe it and method that give it behavior.




class student_info:
    """
    This class contains necessary informations about a student
    """
    
    student_id = ""
    firstname = ""
    lastname = ""
    grade = ""
    school = ""
    faculty =""
    
    # constructor
    def __init__(self,s_id,fn,ln,grade, sh, fa):
        
        self.student_id = s_id
        self.firstname = fn
        self.lastname = ln
        self.grade = grade
        self.school = sh
        self.faculty = fa
        
        
    # methods to access informations about a student (getters)
        
    def get_student_id(self):
        return self.student_id
    
    def get_firstname(self):
        return self.firstname
    
    def get_lastname(self):
        return self.lastname

    
    def get_grade(self):
        return self.grade
    
    def get_school(self):
        return self.school
    
    def get_faculty(self):
        return self.faculty
    
    # Method to modify student information (setter)
    
    def set_student_id(self,st_id):
        self.student_id = st_id
        
    def set_firstname(self,firstN):
        self.firstname = firstN
        
    def set_lastname(self,lastN):
        self.lastname = lastN
        
        
    def set_grade(self,grad):
        self.grade = grad
        
    def set_school(self,sch):
        self.school = sch
        
    def set_faculty(self,fac):
        self.faculty = fac

Illustration: we create two instances of class student

in: stud1 = student_info("DI2122S82","Adama", "wilson", 5, "dataInsight","computer science")
stud2 = student_info("DI2122S04", "Traore", "Lucas", 2, "DataInsight", "Mathematics")

we get some information about stud1


in: stud1.get_student_id(), stud.get_school(), stud.get_faculty(), stud.get_firstname(), stud.get_lastname()
out: ('DI2122S82', 'dataInsight', 'computer science', 'Adama', 'wilson')

We modify the id of stud1

in: stud1.set_student_id("DI212265")

Access to the new id of stud1

in: stud1.get_student_id()
out: 'DI212265'

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