Messagebox yes no python

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Python | Creating a button in tkinter
Python | Add style to tkinter button
Python | Add image on a Tkinter button
Python Tkinter – Label
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Python-Tkinter Scrollbar
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Источник

tkinter.messagebox — Tkinter message prompts¶

The tkinter.messagebox module provides a template base class as well as a variety of convenience methods for commonly used configurations. The message boxes are modal and will return a subset of (True, False, OK, None, Yes, No) based on the user’s selection. Common message box styles and layouts include but are not limited to:

class tkinter.messagebox. Message ( master = None , ** options ) ¶

Create a default information message box.

Information message box

tkinter.messagebox. showinfo ( title = None , message = None , ** options ) ¶

Warning message boxes

tkinter.messagebox. showwarning ( title = None , message = None , ** options ) ¶ tkinter.messagebox. showerror ( title = None , message = None , ** options ) ¶

Question message boxes

tkinter.messagebox. askquestion ( title = None , message = None , ** options ) ¶ tkinter.messagebox. askokcancel ( title = None , message = None , ** options ) ¶ tkinter.messagebox. askretrycancel ( title = None , message = None , ** options ) ¶ tkinter.messagebox. askyesno ( title = None , message = None , ** options ) ¶ tkinter.messagebox. askyesnocancel ( title = None , message = None , ** options ) ¶

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Create a Yes/No Message Box in Python using tkinter

In this short guide, you’ll see how to create a Yes/No message box in Python using tkinter. This includes:

A simple GUI with one button, called the ‘Exit Application‘ button
When you press on that button, you’ll have a choice between:
- Yes – to close the GUI
- No – to return back to the main display
The code used to create the Yes/No message box in Python

Here is the full code to create the Yes/No message box in Python using tkinter.

In the next section, you’ll see an explanation about each component used in the code.
```
import tkinter as tk from tkinter import messagebox root = tk.Tk() canvas1 = tk.Canvas(root, width=300, height=300) canvas1.pack() def exit_application(): msg_box = tk.messagebox.askquestion('Exit Application', 'Are you sure you want to exit the application?', icon='warning') if msg_box == 'yes': root.destroy() else: tk.messagebox.showinfo('Return', 'You will now return to the application screen') button1 = tk.Button(root, text='Exit Application', command=exit_application, bg='brown', fg='white') canvas1.create_window(150, 150, window=button1) root.mainloop()
```
Background about the code

Let’s now review the components used in the code.

(1) First, import the tkinter package. This package is used to create a Graphical User Interface (GUI) in Python:
```
import tkinter as tk from tkinter import messagebox
```
(2) Then, create the Canvas, which will become your GUI screen. You can then place items, such as buttons, on the canvas.

Note that you can change the width and height of your display by modifying the numeric values below:
```
canvas1 = tk.Canvas(root, width=300, height=300) canvas1.pack()
```
(3) Now, create a function to be called by the Exit Application button (aka button1).

When you press on the button, a message box would appear on your screen. You can edit the text within the message box:

msg_box = tk.messagebox.askquestion (‘Type here the title for your message box’, ‘type here the content that will be displayed within the message box’)

Then, you’ll need to use an If function:
- If msg_box == ‘yes’then the GUI will be closed
- else: another message box would appear on your screen to indicate that you’ll now return back to the application screen
```
def exit_application(): msg_box = tk.messagebox.askquestion('Exit Application', 'Are you sure you want to exit the application?', icon='warning') if msg_box == 'yes': root.destroy() else: tk.messagebox.showinfo('Return', 'You will now return to the application screen')
```
(4) Finally, add a button (aka button1) to call the ‘exit_application’ function above.

The button should be placed on the GUI. You can control the position of the button by changing the numeric values below:
```
button1 = tk.Button(root, text='Exit Application', command=exit_application, bg='brown', fg='white') canvas1.create_window(150, 150, window=button1)
```
Running the Python Code

Run the Python code, and you’ll see a simple GUI that has a single button to exit the application.

Press on the ‘Exit Application’ button, and you’ll get a message box, where you’ll have two options to choose from. If you you click on ‘Yes‘, you’ll exit the application.

However, if you click on ‘No‘, you’ll get this second message box:

Once you click on ‘OK’ you’ll return back to the application screen.

You may check the following guide for a more comprehensive GUI that you can create using tkinter, or visit the tkinter documentation.

Источник

Tkinter messagebox – Ask Yes or No

In Tkinter, the messagebox.askyesno() method is used to ask the user a question with two buttons: Yes, No.

If user clicks on Yes button, then askyesno() returns True, or else if user clicks on No button, then askyesno() returns False. Based on the returned value, we can proceed with the required logic.

In this tutorial, you will learn how to ask a question in a message box using messagebox.askyesno() method in Tkinter, with an example program.

Syntax of messagebox.askyesno()

The syntax of askyesno() method is
```
messagebox.askyesno(title, message)
```
If user clicks on Yes, then we get the following output in Terminal.

If user clicks on No, then we get the following output in Terminal.

Summary

In this Python Tkinter tutorial, we learned how to ask a question with Yes and No actions in a message box in Tkinter, with examples.

Источник

Messagebox yes no python