Non-polling file monitoring in wxPython

I have a wxPython application that needs to know when a certain file gets deleted, but I'd like to do it without having to use a "polling" technique开发者_JS百科.. Since this is a Linux-only app, I thought I could use GIO, but it looks like it needs a call to gtk.main() and I can't do that because that'd stop the execution flow on the wxPython side...

Is there a workaround or an alternative way?

(Xubuntu 9.04, wxPython 2.8.9.1)

Pyinotify can do that

or you can run inotifywait in the background and have it send you a signal when the event occurs.

or perhaps roll your own with inotifywait() in C