Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

Getting ready

You must ensure that this file is placed in the same directory.

Since we are using Tkinter (one of many available add-ons for Python), we need to ensure that it is installed. It should be installed by default on the standard Raspbian image. We can confirm it is installed by importing it from the Python prompt, as follows:    Python3    >>> import tkinter If it is not installed, an ImportError exception will be raised, in which case you can install it using the following command (use Ctrl + Z to exit the Python prompt):    sudo apt-get install python3-tk If the module did load, you can use the following command to read more about the module (use Q to quit when you are done reading):    >>>help(tkinter) You can also get ...