create and use python classes
class Mammal:
def __init__(self, name):
self.name = name
def walk(self):
print(self.name + " is going for a walk")
class Dog(Mammal):
def bark(self):
print("bark!")
class Cat(Mammal):
def meow(self):
print("meow!")
dog1 = Dog("Spot")
dog1.walk()
dog1.bark()
cat1 = Cat("Juniper")
cat1.walk()
cat1.meow()class python
class MyClass(object):
def __init__(self, x):
self.x = xclass python
class Employee(Object)
def __init__(self, name, age, salary):
self.name = name
self.age = age
self.salary = salary
def __str__(self)
return f"Employee {name} \nhes age {age} \nand make {salary}"class python
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
p1 = Person("John", 36)
p1.age = 40
print(p1.age)
---------------------------------------------------------------
40class python
class A: # define your class A
.....
class B: # define your class B
.....
class C(A, B): # subclass of A and B
obj = C() #to create instance
# issubclass(sub, sup) boolean function returns true if the given
# subclass sub is indeed a subclass of the superclass sup
# isinstance(obj, Class) boolean function returns true if obj is an
# instance of class Class or is an instance of a subclass of Classclass python
class Charge:
def __init__(self, employee, discount):
self.employee = employee
self.discount = discount
def _discounted_pricey(self):
item_price = 100
discounted_price = item_price * (1-self.discount)
return discounted_price
def __discounted_price(self):
item_price = 100
discounted_price = item_price * (1-self.discount)
return discounted_price
def pays(self):
price_to_charge = self.__discounted_price() # gotcha: self.
print(f'Charge {self.employee} ${price_to_charge:.2f} ({self.discount:.2%} off)')
Employee = Charge(employee='Billy Beans', discount=.1)
print(Employee.employee) # Billy Beans
print(Employee.discount) # 0.1
print(Employee._discounted_pricey()) # 90.0
print(Employee.__discounted_price()) # AttributeError: 'Charge' object has no attribute '__discounted_price'
print(Employee.item_price) # AttributeError: 'Charge' object has no attribute 'item_price'
Employee.pays() # Charge Billy Beans $90.00 (10.00% off)Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
