Answers for "create popup in tkintert"

popups in tkinter

from tkinter import messagebox
messagebox.showinfo(title="Error", message="No Data File Found.")

tkinter popup menu

    #display menu on right click
    def do_popup(self,event):
        try:
            self.popup_menu.tk_popup(event.x_root,
                                     event.y_root)
        finally:
            self.popup_menu.grab_release()