How to create a tkinter toggle button?

python, python-2.x, tkinter, toggle

Solution

The background and fg are set only in the if-clause. You need to set them also in the `else` clause:

def onNightMode(self):
    if index:
        self.text.config(font=('courier', 12, 'normal'), background='black', fg='green')

    else:
        self.text.config(font=('courier', 12, 'normal'))

    index = not index

i.e.,

else:
    self.text.config(font=('courier', 12, 'normal'), background='green', fg='black')

Problem

I've been working on a text editor using Tkinter in Python 2.7. A feature that I'm trying to implement is the Night Mode, where the user can toggle between a black background and a light one, that switches from light to dark with a click of the toggle button. ``` from Tkinter import * from tkSimpleDialog import askstring from tkFileDialog import asksaveasfilename from tkFileDialog import askopenfilename from tkMessageBox import askokcancel Window = Tk() Window.title("TekstEDIT") index = 0 class Editor(ScrolledText): Button(frm, text='Night-Mode', command=self.onNightMode).pack(side=LEFT) def onNightMode(self): if index: self.text.config(font=('courier', 12, 'normal'), background='black', fg='green') else: self.text.config(font=('courier', 12, 'normal')) index = not index ``` However, on running the code, it is always in the night mode and the toggle doesn't work. Help. Source Code: http://ideone.com/IVJuxX

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