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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 Spinbox widget

The ttk.Spinbox widget adds increment and decrement buttons to a regular Entry widget, making it suitable for numerical data.

Prior to Python 3.7, Spinbox was only available in Tkinter, not ttk. If you're using Python 3.6 or an older version, use the Tkinter.Spinbox widget instead. The sample code uses the Tkinter version for compatibility.

A Spinbox widget is created as follows:

my_spinbox = tk.Spinbox(
    parent,
    from_=0.5,
    to=52.0,
    increment=.01,
    textvariable=my_double_var)

As seen in the preceding code, the Spinbox widget takes some extra constructor arguments to control the increment and decrement button behavior, as follows:

  • from_: This argument determines the lowest value to which the arrows decrement. The ending ...
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Publisher Resources

ISBN: 9781788835886Supplemental Content