=== modified file 'mandos'
--- mandos	2014-02-16 13:12:20 +0000
+++ mandos	2014-02-22 17:13:00 +0000
@@ -1352,11 +1352,7 @@
                                        *args, **kwargs)
     
     def start_checker(self, *args, **kwargs):
-        old_checker = self.checker
-        if self.checker is not None:
-            old_checker_pid = self.checker.pid
-        else:
-            old_checker_pid = None
+        old_checker_pid = getattr(self.checker, "pid", None)
         r = Client.start_checker(self, *args, **kwargs)
         # Only if new checker process was started
         if (self.checker is not None

=== modified file 'mandos-monitor'
--- mandos-monitor	2014-02-16 13:12:20 +0000
+++ mandos-monitor	2014-02-22 17:13:00 +0000
@@ -32,7 +32,6 @@
 
 import sys
 import os
-import signal
 
 import datetime