May 2018
Beginner to intermediate
452 pages
11h 26m
English
Foreground and background are sufficient for simple widgets such as buttons, but more complex Tkinter widgets like the Text widget or the Ttk Treeview rely on a system of tags. A tag in Tkinter is a named region of a widget's content to which color and font settings can be applied. To see how this works, let's build a crude, but pretty, Python shell.
We'll start by creating a Text widget:
import tkinter as tk text = tk.Text(width=50, height=20, bg='black', fg='lightgreen') text.pack()
Here, we've used the fg and bg arguments to set up a green-on-black theme, popular with programmers. Rather than have only green text, though, let's configure different colors for our prompt and our interpreter output.
To do this, we'll define some ...