from tkinter import Tk, Frame, Menu
class Example(Frame):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.master.title("Submenu")
menubar = Menu(self.master)
self.master.config(menu=menubar)
fileMenu = Menu(menubar)
submenu = Menu(fileMenu)
submenu.add_command(label="New feed")
submenu.add_command(label="Bookmarks")
submenu.add_command(label="Mail")
fileMenu.add_cascade(label='Import', menu=submenu, underline=0)
fileMenu.add_separator()
fileMenu.add_command(label="Exit", underline=0, command=self.onExit)
menubar.add_cascade(label="File", underline=0, menu=fileMenu)
def onExit(self):
self.quit()
def main():
root = Tk()
root.geometry("250x150+300+300")
app = Example()
root.mainloop()
if __name__ == '__main__':
main()