How to create a message box with tkinter?

Question

I've been trying to build a fairly simple message box in tkinter that has "YES" and "NO" buttons. When I push the "YES" button internally it must go and write YES to a file. Similarly, when "NO" is pushed, NO must be written to a file. How can I do this?

Answer 1

You can use the module tkMessageBox for Python 2.7 or the corresponding version for Python 3 called tkinter.messagebox.

It looks like askquestion() is exactly the function that you want. It will even return the string "yes" or "no" for you.

Answer 2

Here's how you can ask a question using a message box in Python 2.7. You need specifically the module tkMessageBox.

from Tkinter import *
import tkMessageBox


root = Tk().withdraw()  # hiding the main window
var = tkMessageBox.askyesno("Title", "Your question goes here?")

filename = "log.txt"

f = open(filename, "w")
f.write(str(var))
print str(var) + " has been written to the file " + filename
f.close()

Answer 3

You can assign the return value of the askquestion function to a variable, and then you simply write the variable to a file:

from tkinter import messagebox

variable = messagebox.askquestion('title','question')

with open('myfile.extension', 'w') as file: # option 'a' to append
    file.write(variable + '\n')