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Python GUI Programming with Tkinter
book

Python GUI Programming with Tkinter

by Alan D. Moore
May 2018
Beginner to intermediate content levelBeginner to intermediate
452 pages
11h 26m
English
Packt Publishing
Content preview from Python GUI Programming with Tkinter

The Button widget

The ttk.Button widget should also be familiar from Chapter 1, Introduction to Tkinter. It's just a straightforward button that you click with the mouse or spacebar, as shown in the following screenshot:

Just like the Checkbutton widget, this widget uses the text and textvariable configuration options to control the label on the button. The Button objects don't take variable, but they do take a command argument, which specifies a Python function to run when the button is clicked.

The following example shows the use of a Button object:

tvar = tk.StringVar()
def swaptext():    if tvar.get() == 'Hi':        tvar.set('There')    else: tvar.set('Hi') ...
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Publisher Resources

ISBN: 9781788835886Supplemental Content