how to call a class function in python code example

Example 1: call instance class python

# define class
class example:
# define __call__ function
   def __call__(self):
       print("It worked!")
# create instance
g = example()
# when attempting to call instance of class it will call the __class method
g()
# prints It worked!

Example 2: how to declare a class in python

class ClassName(object): #"(object)" isn't mandatory unless this class inherit from another
  	def __init__(self, var1=0, var2):
    
    	#the name of the construct must be "__init__" or it won't work
    	#the arguments "self" is mandatory but you can add more if you want 
    	self.age = var1
    	self.name = var2
    
    	#the construct will be execute when you declare an instance of this class
    
  	def otherFunction(self):
    	
        #the other one work like any basic fonction but in every methods,
    	#the first argument (here "self") return to the class in which you are

Example 3: classes in python

# Python classes

class Person():
  # Class object attributes (attributes that not needed to be mentioned when creating new class of person)
  alive = True
  
  def __init__(self, name, age):
    # In the __init__ method you can make attributes that will be mentioned when creating new class of person
    self.name = name
    self.age = age
    
  def speak(self):
    # In every method in class there will be self, and then other things (name, age, etc.)
    print(f'Hello, my name is {self.name} and my age is {self.age}') # f'' is type of strings that let you use variable within the string

person_one = Person('Sam', 23) # Sam is the name attribute, and 23 is the age attribute
person_one.speak() # Prints Hello, my name is Sam and my age is 23

==================================================================
# Output:

>>> 'Hello, my name is Sam and my age is 23'

Example 4: call a function from another class python

class A:
    def method1(arg1, arg2):
        # do code here

class B:
    A.method1(1,2)