Book Image

Artificial Intelligence with Python - Second Edition

By : Prateek Joshi
Book Image

Artificial Intelligence with Python - Second Edition

By: Prateek Joshi

Overview of this book

Artificial Intelligence with Python, Second Edition is an updated and expanded version of the bestselling guide to artificial intelligence using the latest version of Python 3.x. Not only does it provide you an introduction to artificial intelligence, this new edition goes further by giving you the tools you need to explore the amazing world of intelligent apps and create your own applications. This edition also includes seven new chapters on more advanced concepts of Artificial Intelligence, including fundamental use cases of AI; machine learning data pipelines; feature selection and feature engineering; AI on the cloud; the basics of chatbots; RNNs and DL models; and AI and Big Data. Finally, this new edition explores various real-world scenarios and teaches you how to apply relevant AI algorithms to a wide swath of problems, starting with the most basic AI concepts and progressively building from there to solve more difficult challenges so that by the end, you will have gained a solid understanding of, and when best to use, these many artificial intelligence techniques.
Table of Contents (26 chapters)
24
Other Books You May Enjoy
25
Index

Building a bot to play Tic-Tac-Toe

Tic-Tac-Toe (Noughts and Crosses) is perhaps one of the most famous games in the world. Let's see how to build a game where the computer can play against the user. This is a minor variant of the Tic-Tac-Toe recipe given in the easyAI library.

Create a new Python file and import the following packages:

from easyAI import TwoPlayersGame, AI_Player, Negamax
from easyAI.Player import Human_Player

Define a class that contains all the methods to play the game. Start by defining the players and who starts the game:

class GameController(TwoPlayersGame): 
    def __init__(self, players):
        # Define the players 
        self.players = players

        # Define who starts the game 
        self.nplayer = 1

We will be using a 3×3 board numbered from one to nine row-wise:

    # Define the board
    self.board = [0] * 9

Define a method to compute all the possible moves:

    # Define possible...