Class And Method In Python

In this python tutorial, we going to look at the class structure before start reading this article, if you don’t know functions you should read this article. This tutorial consist of class and method in python.

Class Syntax

We store the same type of functions in classes, and we can call the function from that class whenever needed. Classes consist of a combination of objects of the same type.

class className:
   functionName
   operation

An Example Class

Let’s create a sample class and call this class in the project. In this example class, let’s print a value on the screen when it is called, then we will enrich these examples with a different function.

class Product:
   productName = "Phone"

product = Product()
print(product.productName)

In the above example, we call the name object from the Product class and write to the screen. Let’s look at a new function structure. This function structure is init functions.

Init Functions

You can customize your classes with init, the init functions are run every time the class is called. The parameters in the init function must be added when the class is called.

class Product:
   def __init__(self, name, id):
      self.name = name
      self.id = id
   
   def GetCode(self):
      return self.name + self.id

product = Product("Phone" , "1")
print(product.GetCode())

class Product:
   def __init__(self, name, id):
      self.name = name
      self.id = id
   def GetCode(self):
      return self.name + self.id

product = Product("Phone" , "1")
product.name = "Iphone"
product.id = 2
print(product.GetCode())

class Product:
   def __init__(self, name, id):
      self.name = name
      self.id = id

product = Product("Phone" , "1")
del product.name
print(product.name)