Python tkinter widgets Exercise: Create a Spinbox widget using tkinter module

Last update on April 25 2025 12:53:30 (UTC/GMT +8 hours)

Write a Python GUI program to create a Spinbox widget using tkinter module.

Sample Solution:

Python Code:

import tkinter as tk
root = tk.Tk()
text_var = tk.DoubleVar()

spin_box = tk.Spinbox(
    root,
    from_=0.6,
    to=50.0,
    increment=.01,
    textvariable=text_var
)
spin_box.pack()
root.mainloop()

Explanation:

In the exercise above -

import tkinter as tk - Import the Tkinter library (tkinter).
root = tk.Tk() - Create the main Tkinter window (root).
text_var = tk.DoubleVar() - Create a DoubleVar (text_var) to hold a double (floating-point) variable.
spin_box = tk.Spinbox( root, from_=0.6, to=50.0, increment=.01, textvariable=text_var) - Create a Spinbox widget (spin_box) for selecting numeric values. Set the allowed range for values (from 0.6 to 50.0) and the increment step (0.01). Associate the DoubleVar (text_var) with the Spinbox using textvariable.
spin_box.pack() - Display the Spinbox within the main window.
root.mainloop() - Start the Tkinter main loop to run the GUI application.

Sample Output:

Flowchart:

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