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 Foo:
def __init__(self):
self.definition = Foo!
def hi():
# Some other code here :)
# Classes require an __init__ if you want to assign attributes. (self) defines what describes the attribs.
class fruit:
def __init__(self,color,taste,name):
self.color = color
self.name = name
self.taste = taste
def myfunc(self):
print("{} = Taste:{}, Color:{}".format(self.name, self.taste, self.color))
f1 = fruit("Red", "Sweet", "Red Apple")
f1.myfunc()>>> print(ObjectCreator) # you can print a class because it's an object
<class '__main__.ObjectCreator'>
>>> def echo(o):
... print(o)
...
>>> echo(ObjectCreator) # you can pass a class as a parameter
<class '__main__.ObjectCreator'>
>>> print(hasattr(ObjectCreator, 'new_attribute'))
False
>>> ObjectCreator.new_attribute = 'foo' # you can add attributes to a class
>>> print(hasattr(ObjectCreator, 'new_attribute'))
True
>>> print(ObjectCreator.new_attribute)
foo
>>> ObjectCreatorMirror = ObjectCreator # you can assign a class to a variable
>>> print(ObjectCreatorMirror.new_attribute)
foo
>>> print(ObjectCreatorMirror())
<__main__.ObjectCreator object at 0x8997b4c>