Unit 5 - Lesson 2

51.1.1. Understanding the self variable

class Manager:

    # define init method with self, name, department, salary attributes
    def __init__(self,name,department,salary):
        self.name = name
        self.department = department
        self.salary = salary
name = input("name: ")
department = input("department: ")
salary = int(input("salary: "))
manager_1 = Manager(name, department, salary)
print('Manager details:', manager_1.name, manager_1.department, manager_1.salary)

51.1.2. Using self variable

class Car:
    def setDetails(self, model, regno):
        # write your code here
        self.model = model
        self.regno = regno
    def getModel(self):
        # write your code here
        return self.model
    def getRegno(self):
        # write your code here
        return self.regno

Hyundai = Car()
Maruthi = Car()
#Take details of the car as input from user. Write your code here
m1 = input("car1 model: ")
r1 = input("car1 regno: ")
m2 = input("car2 model: ")
r2 = input("car2 regno: ")
Hyundai.setDetails(m1,r1)
Hyundai.m = Hyundai.getModel()
Hyundai.r = Hyundai.getRegno()

Maruthi.setDetails(m2,r2)
Maruthi.m = Maruthi.getModel()
Maruthi.r = Maruthi.getRegno()

print("Hyundai car details:", Hyundai.m,Hyundai.r)
print("Maruthi car details:", Maruthi.m,Maruthi.r)

51.1.3. Writing a class using a self variable as method parameter

# write your code here
class Car:
    def setName(self,name):
        self.name = name
    def getName(self):
        return(self.name)
Honda = Car()
c = input("car name: ")
Honda.setName(c)
print("Honda car name:", Honda.getName())

51.1.4. Understanding the usage of self variable

(b) self should be the first argument in the parameter list of any method
(c) self is always a reference to the current instance

Unit 5 - Lesson 2 | Codetantra Python

Unit 5 - Lesson 2