diff -r d51af006fa6b -r 64d8f52bc8c8 runtime/ServicePublisher.py
--- a/runtime/ServicePublisher.py	Fri Aug 11 15:18:19 2017 +0300
+++ b/runtime/ServicePublisher.py	Mon Aug 14 19:13:01 2017 +0300
@@ -30,20 +30,20 @@
     def __init__(self):
         # type: fully qualified service type name
         self.serviceproperties = {'description':'Beremiz remote PLC'}
-        
+
         self.name = None
         self.ip_32b = None
         self.port = None
         self.server = None
         self.service_name = None
         self.retrytimer = None
-        
+
     def RegisterService(self, name, ip, port):
         try:
             self._RegisterService(name, ip, port)
         except Exception,e:
             self.retrytimer = threading.Timer(2,self.RegisterService,[name, ip, port])
-            self.retrytimer.start() 
+            self.retrytimer.start()
 
     def _RegisterService(self, name, ip, port):
         # name: fully qualified service name
@@ -66,20 +66,20 @@
                                   self.port,
                                   properties = self.serviceproperties))
         self.retrytimer=None
-    
+
     def UnRegisterService(self):
         if self.retrytimer is not None:
             self.retrytimer.cancel()
 
         self.server.unregisterService(
-                                      Zeroconf.ServiceInfo(service_type, 
-                                                           self.service_name, 
-                                                           self.ip_32b, 
-                                                           self.port, 
+                                      Zeroconf.ServiceInfo(service_type,
+                                                           self.service_name,
+                                                           self.ip_32b,
+                                                           self.port,
                                                            properties = self.serviceproperties))
         self.server.close()
         self.server = None
-    
+
     def gethostaddr(self, dst = '224.0.1.41'):
         s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
         try: