[Urwid] detecting when an edit box has changed

[Ian Ward]

Eric S. Johansson wrote:
> What do you mean by hooking a function in Python?  I'm familiar with 
> lots of techniques using pointers to functions in a variety of different 
> languages.  so is there a function I overload or pass into the constructor?

In python you the easiest way is to override the function in a subclass. eg:

class FancyEdit(urwid.Edit):
	def set_edit_text(self, text):
		# do things
		urwid.Edit.set_edit_text(self, text)

Ian