So far, all the buttons and labels in examples have been rendered with a default look-and-feel that is standard for the underlying platform. With my machine’s color scheme, that usually means that they’re gray on Windows. tkinter widgets can be made to look arbitrarily different, though, using a handful of widget and packer options.
Because I generally can’t resist the temptation to customize widgets in examples, I want to cover this topic early on the tour. Example 8-1 introduces some of the configuration options available in tkinter.
Example 8-1. PP4E\Gui\Tour\config-label.py
from tkinter import * root = Tk() labelfont = ('times', 20, 'bold') # family, size, style widget = Label(root, text='Hello config world') widget.config(bg='black', fg='yellow') # yellow text on black label widget.config(font=labelfont) # use a larger font widget.config(height=3, width=20) # initial size: lines,chars widget.pack(expand=YES, fill=BOTH) root.mainloop()
Remember, we can call a widget’s
config method to reset its options at any time, instead of passing all
of them to the object’s constructor. Here, we use it to set options
that produce the window in Figure 8-1.
Figure 8-1. A custom label appearance
This may not be completely obvious unless you run this script on a real computer (alas, I can’t show it in color here), but the label’s text shows up in yellow on a black background, ...