Using Tkinter in python to edit the title bar

If you don't create a root window, Tkinter will create one for you when you try to create any other widget. Thus, in your __init__, because you haven't yet created a root window when you initialize the frame, Tkinter will create one for you. Then, you call make_widgets which creates a second root window. That is why you are seeing two windows.

A well-written Tkinter program should always explicitly create a root window before creating any other widgets.

When you modify your code to explicitly create the root window, you'll end up with one window with the expected title.

Example:

from tkinter import Tk, Button, Frame, Entry, ENDclass ABC(Frame):    def __init__(self,parent=None):        Frame.__init__(self,parent)        self.parent = parent        self.pack()        self.make_widgets()    def make_widgets(self):        # don't assume that self.parent is a root window.        # instead, call `winfo_toplevel to get the root window        self.winfo_toplevel().title("Simple Prog")        # this adds something to the frame, otherwise the default        # size of the window will be very small        label = Entry(self)        label.pack(side="top", fill="x")root = Tk()abc = ABC(root)root.mainloop()

Also note the use of self.make_widgets() rather than ABC.make_widgets(self). While both end up doing the same thing, the former is the proper way to call the function.

Here it is nice and simple.

root = tkinter.Tk()root.title('My Title')

root is the window you create and root.title() sets the title of that window.

Try something like:

from tkinter import Tk, Button, Frame, Entry, ENDclass ABC(Frame):    def __init__(self, master=None):        Frame.__init__(self, master)        self.pack()        root = Tk()app = ABC(master=root)app.master.title("Simple Prog")app.mainloop()root.destroy()

Now you should have a frame with a title, then afterwards you can add windows fordifferent widgets if you like.