Python method-Classes ,objects and functios in python

------>what is a method in Python Programming Language. Moreover, we will learn Python Class Method and Python Object. Along with this, we will study the python functions.

1. Python Method – Objective

Introduction:

"Python is an object-oriented language"

• This means that it can deal with classes and objects to model the real world. A
• Python method is a label that you can call on an object; it is a piece of code to execute on that object

Python Class Method:

1. Python Class is an Abstract Data Type (ADT). Think of it like a blueprint.
2. A rocket made from referring to its blueprint is according to plan.
3. It has all the properties mentioned in the plan, and behaves accordingly. Likewise, a class is a blueprint for an object.
4. To take an example, we would suggest thinking of a car

Here, this is an object of the class Car, and we may choose to call it ‘car1’ or ‘blackverna’.

>>> class Car:
          def __init__(self,brand,model,color,fuel):
                  self.brand=brand
                  self.model=model
                  self.color=color
                  self.fuel=fuel
           def start(self):
                  pass
           def halt(self):
                  pass
           def drift(self):
                  pass
           def speedup(self):
                  pass
           def turn(self):
                  pass

Python Objects

• A Python object is an instance of a class. It can have properties and behavior.
• We just created the class Car. Now, let’s create an object blackverna from this class. Remember that you can use a class to create as many objects

>>> blackverna=Car('Hyundai','Verna','Black

• This creates a Car object, called blackverna, with the aforementioned attributes.
• We did this by calling the class like a function (the syntax).
• Now, let’s access its fuel attribute

An interesting discovery– 

• When we first defined the class Car, we did not pass the ‘self’ parameter to the five methods of the class.
• This worked fine with the attributes, but when we called the drift() method on blackverna, it gave us this error:

Traceback(most recent call last):

File “<pyshell#19>”, line 1, in <module>

blackverna.drift()

TypeError: drift() takes 0 positional arguments but 1 was given

• From this error, we figured that we were missing the ‘self’ parameter to all those methods.
• Then we added it to all of them, and called drift() on blackverna again. It still didn’t work.