The following code enables the status bar to remain at the bottom of the window and expand to fill the window when the window is resized. How can I replace pack() with grid() to do the same thing? import tkinter as tk from tkinter import ttk colour='blue' class StatusBar(ttk.Frame): def __init__(self, container): super().__init__(container) self.columnconfigure(0, weight=1) self.rowconfigure(0,weight=1) self.label=tk.Label(self, text="STATUS BAR") self.label.grid() self.pack(fill='x', expand=True, anchor='s') class App(tk.Tk): def __init__(self): super().__init__() self.title('Replace') self.geometry('800x500') self.resizable(1, 1) self.configure(bg=colour) if __name__ == "__main__": app = App() sb = StatusBar(app) app.mainloop() Continue reading...