How to use super() when subclassing Tkinter widgets? [duplicate] How to use super() when subclassing Tkinter widgets? [duplicate] tkinter tkinter

How to use super() when subclassing Tkinter widgets? [duplicate]


While it is true that Tkinter uses old-style classes, this limitation can be overcome by additionally deriving the subclass Application from object (using Python multiple inheritance):

import Tkinter as tkclass Application(tk.Frame, object):    def __init__(self, master):        super(Application, self).__init__(master)        self.grid()def main():    root = tk.Tk()    root.geometry('200x150')    app = Application(root)    root.mainloop()main()

This will work so long as the Tkinter class doesn't attempt any behaviour which requires being an old-style class to work (which I highly doubt it would). I tested the example above with Python 2.7.7 without any issues.

This work around was suggested here. This behaviour is also included by default in Python 3 (referenced in link).


Tkinter uses old-style classes. super() can only be used with new-style classes.