create a class in python with attributes code example

Example 1: how to make a class in python

class Person:
  def __init__(self, _name, _age):
    self.name = _name
    self.age = _age
   
  def sayHi(self):
    print('Hello, my name is ' + self.name + ' and I am ' + self.age + ' years old!')
    
p1 = Person('Bob', 25)
p1.sayHi() # Prints: Hello, my name is Bob and I am 25 years old!

Example 2: 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)
---------------------------------------------------------------
40

Example 3: class in python

2+3j
(5, 0, 10)
Traceback (most recent call last):
  File "<string>", line 27, in <module>
    print(num1.attr)
AttributeError: 'ComplexNumber' object has no attribute 'attr'

Example 4: how to define a class in python

class a_class:
  #This initalizes the object, and is executed when you define
  #a new object in the class
  def __init__(self, input1):
    self.__input1 = input1
    
  #This is a function of the object that can be called
  def return_input(self):
    return self.__input1
  
a_class_object = a_class("input string")
print(a_class_object.return_input())