20 is still causing in use errors, try 30 seconds

diff --git a/server.py b/server.py
index 4bdcdd0..06aca7b 100755 (executable)
--- a/server.py
+++ b/server.py
@@ -77,7 +77,7 @@ class Door(dbus.service.Object):
             # emit signal
             self.status_changed(newstatus)
             # back off if broken
-            self.interval = [10,10,20][newstatus]
+            self.interval = [10,10,30][newstatus]
         
         # set up timeout again
         self.timeout = Timer(self.interval, self.poll)