combobox

[Agusben]

Thanks, that was useful.
Now I have another problem.
I want to create a Label that displays whatever I selected.
I try this:

if box.get() == "small":
  chosen_label = Label(root, text="You choose 'small'")
  chosen_labes.grid(column = 1, row = 4)

I try to put this after all the others buttons but it didn't work.
Is there a way to add a widget depending on what you choose on the combobox?