Mastering GUI Programming with Python

Structuring the module

To begin our module, we're going to start by adding the code for our three classes. We're going to put each one in a separate file; this isn't strictly necessary, but it will help us to keep our code decoupled and make it easier to find the class we want to edit.

Therefore, under qtictactoe, create three files:

• engine.py will hold our game engine class. Copy in the TicTacToeEngine definition along with the necessary PyQt5 import statements for the classes it uses. In this case, you only need QtCore.
• board.py will hold the TTTBoard class. Copy in that code as well as the full set of PyQt5 import statements.
• Finally, mainwindow.py will hold the MainWindow class. Copy in the code for that class as well as the PyQt5 imports. ...