por Do you know what it is and how to create the method within a Python class? The instances that are created from classes are objects that also have attributes. These allow you to give another layer of versatility to the code program you are building. In this case, we will continue building the practical example of modeling a deck of cards in Python. Therefore, in this post, we will tell you how to create the method within a class in Python.
What is a method in Python
According to the Python documentation, classes in Python are made up of objects: class objects, method objects in Python, and instance objects. The latter is where the methods in Python are found, since it is one of the attributes that are referenced in the Python instance objects. A method is a function that constitutes an object Python, and this, a class. Now that you know what a Python method is, you are ready to create the method inside a Python class.
Steps to create the method within a Python class
First of all, in order to create the method within a Python class you must have an established class. In this case, we will expand on the example from other articles of creating a new class of cards on the one hand, and a new class of deck on the other.
Once you have the Python class or classes established Of the methods in Python, you must define the method that you will develop in your code. In this case, we want the set of cards that we have established to be able to be shuffled:
def shuffle (self)
The next step is to think about ways to shuffle, which we will then pass into code. These can be:
Change two elements. Remove an element from a position and move it to the end. Remove an element from a position and move it to the beginning.
For access a specific element in a list you must use the index.
self.letters
self.letters(i)
Then you must generate a random number from the random library. We will use the random.randint (a, b) option. First, you must import this library in two ways:
#options to import the random library
import random
from random import randint
#define the method
random = randint(0, len(self.cards)-1)
For access any letteryou must add the following instruction:
cards_to_change = self.cards [aleatorio]
To delete a card, but not from the list, but from the random one and be able to use it later:
deleted_card = self.cards.pop (random)
For draw and put a card at the end of the list:
self.cards.append (deleted_card).
All previous, must be built into a loop so that the shuffling action can happen:
for i in range (random)
random = randint(0, len(self.cards)-1)
deleted_card = self.cards.pop (random)
self.cards.append (deleted_card)
Since we defined the entire shuffling method in the classes in Python with the object Python, you can run it in the console of your IDE. First, you’ll call the Python programming language, then you’ll import the shuffling class and function, create the deck, and finally, you’ll enter how many times you want your deck of cards to be shuffled. You will see it representing the following way in your console:
>python
#import deck
>> from impor deck
#create the deck of cards
>> Shuffle (12, [«oros», «copas» «espadas», «bastos»])
#Your created deck will appear on the console, so you can enter how many times you want to shuffle your cards
>>> shuffle.shuffle (100)
>>> deck of cards
#your shuffled cards will appear a hundred times
This way, you are ready to create the method inside a Python class and, furthermore, keep trying with other forms and approaches to the code.
Keep practicing with Python
Now that you know how to create the method within a Python class, you are ready to model a deck of cards along with the content presented in the other posts. It is essential that you continue to exercise your programming skills.
If you want to continue practicing, we recommend signing up for our Learn to Program from Scratch Bootcamp, where you can become an expert in code and, especially, in Python. Sign up!