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Tkinter GUI Programming by Example by David Love

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A second top-level window

The new window that will spawn for our find/replace box shall be stored in a new file. Create a new script called findwindow.py and begin by entering the following:

import tkinter as tkimport tkinter.ttk as ttkclass FindWindow(tk.Toplevel):    def __init__(self, master, **kwargs):        super().__init__(**kwargs  )        self.geometry('350x100')        self.title('Find and Replace')        self.text_to_find = tk.StringVar()        self.text_to_replace_with = tk.StringVar()        top_frame = tk.Frame(self)        middle_frame = tk.Frame(self)        bottom_frame = tk.Frame(self)

We will only need our usual Tkinter and ttk imports for this class.

We subclass Tkinter's Toplevel widget, which is a window that can act as a pop-up window to be displayed on top of a main window. ...

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