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!class Person:#set name of class to call it
def __init__(self, name, age):#func set ver
self.name = name#set name
self.age = age#set age
def myfunc(self):#func inside of class
print("Hello my name is " + self.name)# code that the func dose
p1 = Person("barry", 50)# setting a ver fo rthe class
p1.myfunc() #call the func and whitch ver you want it to be with # Standard way of writing a simple class
class Person1:
# Type hinting not required
def __init__(self, name: str, age: int, num_children=0):
self.name = name
self.age = age
self.num_children = num_children
def __repr__(self):
return f'My name is {self.name}, I am {self.age} years old, and I have {self.num_children} children'
from dataclasses import dataclass
# A class using data classes. Dataclasses are simpler but can't support operations during initialization
@dataclass()
class Person2:
""" This class handles the values related to a person. """
name: str # Indicating types is required
age: int
num_children = 0 # Default values don't require an indication of a type
def __repr__(self):
return f'My name is {self.name}, I am {self.age} years old, and I have {self.num_children} children'
# Both classes (Person1 and Person2) achieve the same thing but require different code to do it
person1 = Person1('Joe', 28, 2)
print(person1)
# Result: My name is Joe, I am 28 years old, and I have 2 children
person2 = Person2('Emma', 19)
print(person2)
# Result: My name is Emma, I am 19 years old, and I have 0 childrenclass Parrot:
# class attribute
species = "bird"
# instance attribute
def __init__(self, name, age):
self.name = name
self.age = age
# instantiate the Parrot class
blu = Parrot("Blu", 10)
woo = Parrot("Woo", 15)
# access the class attributes
print("Blu is a {}".format(blu.__class__.species))
print("Woo is also a {}".format(woo.__class__.species))
# access the instance attributes
print("{} is {} years old".format( blu.name, blu.age))
print("{} is {} years old".format( woo.name, woo.age))class Person:
def __init__(self, name, age):
self.name = name
self.age = age
def myfunc(self):
print("Hello my name is " + self.name +".")
p1 = Person("Victor", 24)
p1.myfunc()class Person:
def __init__(self, name, age, gender):
self.name = name
self.age = age
self.gender = gender
def greet(self, person_to_greet):
# person_to_greet will be another Person object
print(f"Hey {person_to_greet.name}, nice to meet you I'm {self.name}")
def ask_age(self, ask_from):
print(f"{self.name}: {ask_from.name}, How old are you?")
print(f"{ask_from.name}: i am {ask_from.age}")
# Creating a person object
tom = Person("Tom", 50, "Male")
# we can also create an object with keyword arguments
jack = Person(name="Jack", age=19, gender="Male")
# Here we call the greet method of tom, and we pass the Jack Person Object Created above
tom.greet(jack)
# if we call the greet method of jack and pass the Tom person object, then jack greets tom
jack.greet(tom)
# Here Jack will ask age of tom, and tom will reply with his age
jack.ask_age(tom)