Python 3 – Tkinter tkMessageBox

If you have ever developed a GUI application in Python using Tkinter, you know how essential it is to provide the user feedback regarding the progress of the application or the result of an operation. One way to accomplish this is by using message boxes.

Tkinter comes with a built-in module called tkMessageBox. It provides a set of methods that can be used to create message boxes that display different types of messages such as error, info, warning or question messages. You can easily integrate tkMessageBox into your Tkinter application and use it to display messages to the user.

Using tkMessageBox

To use tkMessageBox, you first need to import it using the following line of code:

import tkinter.messagebox

After that, you can use the methods provided by tkMessageBox to display different types of message boxes.

showinfo()

The showinfo() method can be used to display an info message box. This method takes two arguments: the title of the message box and the message to display.

Here’s an example code that displays an info message box:

import tkinter as tk
import tkinter.messagebox as msg

root = tk.Tk()

msg.showinfo("Info", "This is an info message box.")

root.mainloop()

When you run this code, it will display an info message box with the title “Info” and the message “This is an info message box.”

showwarning()

The showwarning() method can be used to display a warning message box. This method takes two arguments: the title of the message box and the message to display.

Here’s an example code that displays a warning message box:

import tkinter as tk
import tkinter.messagebox as msg

root = tk.Tk()

msg.showwarning("Warning", "This is a warning message box.")

root.mainloop()

When you run this code, it will display a warning message box with the title “Warning” and the message “This is a warning message box.”

showerror()

The showerror() method can be used to display an error message box. This method takes two arguments: the title of the message box and the message to display.

Here’s an example code that displays an error message box:

import tkinter as tk
import tkinter.messagebox as msg

root = tk.Tk()

msg.showerror("Error", "This is an error message box.")

root.mainloop()

When you run this code, it will display an error message box with the title “Error” and the message “This is an error message box.”

askquestion()

The askquestion() method can be used to display a question message box with “yes” and “no” buttons. This method takes two arguments: the title of the message box and the message to display.

Here’s an example code that displays a question message box:

import tkinter as tk
import tkinter.messagebox as msg

root = tk.Tk()

answer = msg.askquestion("Question", "Do you like Python?")

root.mainloop()

When you run this code, it will display a question message box with the title “Question” and the message “Do you like Python?” The askquestion() method returns “yes” or “no” depending on the user’s response.

askyesno()

The askyesno() method can be used to display a question message box with “yes” and “no” buttons. This method takes two arguments: the title of the message box and the message to display.

Here’s an example code that displays a question message box:

import tkinter as tk
import tkinter.messagebox as msg

root = tk.Tk()

answer = msg.askyesno("Question", "Do you like Python?")

root.mainloop()

When you run this code, it will display a question message box with the title “Question” and the message “Do you like Python?” The askyesno() method returns True if the user clicked “yes” and False if they clicked “no.”

askokcancel()

The askokcancel() method can be used to display a question message box with “ok” and “cancel” buttons. This method takes two arguments: the title of the message box and the message to display.

Here’s an example code that displays a question message box:

import tkinter as tk
import tkinter.messagebox as msg

root = tk.Tk()

answer = msg.askokcancel("Question", "Do you like Python?")

root.mainloop()

When you run this code, it will display a question message box with the title “Question” and the message “Do you like Python?” The askokcancel() method returns True if the user clicked “ok” and False if they clicked “cancel.”

Conclusion

tkMessageBox is a useful module that can be used to display different types of message boxes in your Tkinter application. It provides a simple and efficient way to provide user feedback or to ask the user for confirmation. With the examples provided in this article, you should have a good understanding of how to use tkMessageBox in your own applications.