tkinter how to update optionmenu contents
import Tkinter as tk
class App():
def __init__(self, parent):
self.parent = parent
self.options = ['one', 'two', 'three']
self.om_variable = tk.StringVar(self.parent)
self.om_variable.set(self.options[0])
self.om_variable.trace('w', self.option_select)
self.om = tk.OptionMenu(self.parent, self.om_variable, *self.options)
self.om.grid(column=0, row=0)
self.label = tk.Label(self.parent, text='Enter new option')
self.entry = tk.Entry(self.parent)
self.button = tk.Button(self.parent, text='Add option to list', command=self.add_option)
self.label.grid(column=1, row=0)
self.entry.grid(column=1, row=1)
self.button.grid(column=1, row=2)
self.update_button = tk.Button(self.parent, text='Update option menu', command=self.update_option_menu)
self.update_button.grid(column=0, row=2)
def update_option_menu(self):
menu = self.om["menu"]
menu.delete(0, "end")
for string in self.options:
menu.add_command(label=string,
command=lambda value=string: self.om_variable.set(value))
def add_option(self):
self.options.append(self.entry.get())
self.entry.delete(0, 'end')
print self.options
def option_select(self, *args):
print self.om_variable.get()
root = tk.Tk()
App(root)
root.mainloop()