#!/usr/bin/env python

import gtk  
import gobject

manager = gtk.recent_manager_get_default()
file_uri ="/path/to/file"

if manager.add_item(file_uri):
	print "added "+ file_uri + " to recentlyused"
else:
	print "could not add "+ file_uri + " to recentlyused"

if manager.lookup_item(file_uri):
	print "Found file in RecentlyUsed"	
else:	
	print "Could not find the file: ", file_uri