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inheritance in python 3 example

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Foolish Finch answered on October 25, 2020 Popularity 10/10 Helpfulness 1/10

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inheritance in python 3 example

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<__main__.Robot object at 0x7fd0080b3ba8> <class '__main__.Robot'>
<__main__.PhysicianRobot object at 0x7fd0080b3b70> <class '__main__.PhysicianRobot'>
Hi, I am James

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Source: www.python-course.eu

Tags: inheritance python

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Contributed on Oct 25 2020

Foolish Finch

0 Answers Avg Quality 2/10

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python code to demonstrate inheritance

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# Python code to demonstrate how parent constructors
# are called.
  
# parent class
class Person( object ):    
  
        # __init__ is known as the constructor         
        def __init__(self, name, idnumber):   
                self.name = name
                self.idnumber = idnumber
        def display(self):
                print(self.name)
                print(self.idnumber)
  
# child class
class Employee( Person ):           
        def __init__(self, name, idnumber, salary, post):
                self.salary = salary
                self.post = post
  
                # invoking the __init__ of the parent class 
                Person.__init__(self, name, idnumber) 
  
                  
# creation of an object variable or an instance
a = Employee('Rahul', 886012, 200000, "Intern")    
  
# calling a function of the class Person using its instance
a.display()

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Source: www.geeksforgeeks.org

Tags: inheritance inhe

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Contributed on Jan 24 2022

mathiasgodwin

0 Answers Avg Quality 2/10

Python Inheritance

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class BaseClass:
  Body of base class
class DerivedClass(BaseClass):
  Body of derived class

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Source: Grepper

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Contributed on May 27 2022

SAMER SAEID

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python inheritance

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class Person:
    residence = "Planet Earth" # Class attribute
    def __init__(self, name, age): # Constructor
        self.name = name # "self" refers to the current instance of a class
        self.age = age # instance attribute
        self.height = 0
    def introduce(self): # instance method
        print(f"Hello, my name is {self.name}")
    @classmethod
    def wake_up(): # class method, defined with @classmethod decorator
        print("Time to start your day!")

john = Person("John Casey", 38) # This invokes a call to __init__
john.age # Retrieve the age instance attribute
print(Person.residence) # class attributes are accessed without an instance
john.introduce() # instance method Called on a Person object
Person.wake_up() # Calling a class method


class Employee(Person): # Inheritance : Employee is the child class, Person is the parent class
    def __init__(self, name, age, title):
        super().__init__(name, age) # this is same as : "Person.__init__(self, name, age)"
        self.title = title
    def introduce(self): # Overriding, changing method in child class which was previously available in parent class
        print(f"""My name is {self.name}, I am a {self.title}""")
    def __eq__(self, other): # Overloading : Customize the behavior of Python operators for a class, applicable to magic methods
        return self.name == other.name

lester = Employee("Lester", 26, "Technician")
lester.introduce() # overriden method called
# Comparison
chuck = Person("Charles Carmichael")
charles = Person("Charles Carmichael")
print(chuck == charles) # Overloading method called

# Multiple inheritance : When a child class has more than one parent
# Multilevel inheritance : In a multiple inheritance, when one of the parent is a derived class itself 
# Method resolution order (MRO) : If multiple parent class has method with same name, access right is children first, then left-to-right as defined in extending the parent class names

class Student:
    def __init__(self, school):
        self.school = school
        self.courses = []
    def add_course(self, course_name):
        self.courses.append(course_name)

class Intern(Employee, Student): # Multiple inheritance
    def __init__(self, department, school, duration):
        # Make a call to BOTH constructors
        Employee.__init__(self, department)
        Student.__init__(self, school)
        self.duration = duration

stephen = Intern("Software Development", "Echo University", 10)
stephen.introduce() # Method from Employee
stephen.add_course("Intermediate OOP in Python") # Method from Student
print(Intern.mro()) # See MRO precedences for same name methods

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Source: Grepper

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Contributed on Aug 13 2024

Innocent Iguana

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python constructor inheritance

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# this is the class which will become
# the super class of "Subclass" class
class Class():
    def __init__(self, x):
        print(x)
  
# this is the subclass of class "Class"
class SubClass(Class):
    def __init__(self, x):
  
        # this is how we call super
        # class's constructor
        super().__init__(x)
  
# driver code
x = [1, 2, 3, 4, 5]
a = SubClass(x)

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Source: www.geeksforgeeks.org

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Contributed on Oct 20 2022

Joris Degen

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python inheritance

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class Base():
    """ My base class """

    __nb_instances = 0

    def __init__(self):
        Base.__nb_instances += 1
        self.id = Base.__nb_instances

class User(Base):
    """ My User class """

    def __init__(self):
        super().__init__()
        self.id += 99

u = User()
print(u.id)

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Source: alx-intranet.hbtn.io

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Contributed on Jul 04 2022

Drab Dolphin

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inheritance in python 3 example

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class Robot:
    
    def __init__(self, name):
        self.name = name
        
    def say_hi(self):
        print("Hi, I am " + self.name)
        
class PhysicianRobot(Robot):

    def say_hi(self):
        print("Everything will be okay! ") 
        print(self.name + " takes care of you!")

y = PhysicianRobot("James")
y.say_hi()

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Source: www.python-course.eu

Tags: inheritance inhe

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Contributed on Oct 25 2020

Foolish Finch

0 Answers Avg Quality 2/10

Python Inheritance

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class Student(Person):
  def __init__(self, fname, lname, year):
    super().__init__(fname, lname)
    self.graduationyear = year
 

x = Student("Michael", "Smith", 2020)

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Source: Grepper

Tags: inheritance inhe

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Contributed on Jun 29 2022

Javasper

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A python program to demonstrate inheritance

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# A Python program to demonstrate inheritance
  
# Base or Super class. Note object in bracket.
# (Generally, object is made ancestor of all classes)
# In Python 3.x "class Person" is
# equivalent to "class Person(object)"
class Person(object):
      
    # Constructor
    def __init__(self, name):
        self.name = name
  
    # To get name
    def getName(self):
        return self.name
  
    # To check if this person is an employee
    def isEmployee(self):
        return False
  
  
# Inherited or Subclass (Note Person in bracket)
class Employee(Person):
  
    # Here we return true
    def isEmployee(self):
        return True
  
# Driver code
emp = Person("Geek1")  # An Object of Person
print(emp.getName(), emp.isEmployee())
  
emp = Employee("Geek2") # An Object of Employee
print(emp.getName(), emp.isEmployee())

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Source: www.geeksforgeeks.org

Tags: inheritance inhe

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Contributed on Jul 07 2022

mathiasgodwin

0 Answers Avg Quality 2/10

A python program to demonstrate inheritance

Comment

# A Python program to demonstrate inheritance
  
# Base or Super class. Note object in bracket.
# (Generally, object is made ancestor of all classes)
# In Python 3.x "class Person" is
# equivalent to "class Person(object)"
class Person(object):
      
    # Constructor
    def __init__(self, name):
        self.name = name
  
    # To get name
    def getName(self):
        return self.name
  
    # To check if this person is an employee
    def isEmployee(self):
        return False
  
  
# Inherited or Subclass (Note Person in bracket)
class Employee(Person):
  
    # Here we return true
    def isEmployee(self):
        return True
  
# Driver code
emp = Person("Geek1")  # An Object of Person
print(emp.getName(), emp.isEmployee())
  
emp = Employee("Geek2") # An Object of Employee
print(emp.getName(), emp.isEmployee())

Popularity 9/10 Helpfulness 2/10 Language python

Source: www.geeksforgeeks.org

Tags: inheritance inhe

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Contributed on Jul 07 2022

mathiasgodwin

0 Answers Avg Quality 2/10

inheritance in python 3 example

Comment

class Robot:
    
    def __init__(self, name):
        self.name = name
        
    def say_hi(self):
        print("Hi, I am " + self.name)
        
class PhysicianRobot(Robot):
    pass

x = Robot("Marvin")
y = PhysicianRobot("James")

print(x, type(x))
print(y, type(y))

y.say_hi()

Popularity 10/10 Helpfulness 2/10 Language python

Source: www.python-course.eu

Tags: inheritance inhe

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Contributed on Oct 25 2020

Foolish Finch

0 Answers Avg Quality 2/10

inheritance in python 3 example

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inheritance in python 3 example

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