SW-772: re doesn't like escaping in unicode, so use raw strings

LCS/Messaging/python/messaging/messagebus.py

@@ -1076,8 +1076,8 @@ class AbstractMessageHandler:
         """
 
         # introspection magic to get all methods called from within this handler's handle_message method.
-        r1 = re.compile("self\.on(.)+\(.*\)")
-        r2 = re.compile("\(.*")
+        r1 = re.compile(r"self\.on(.)+\(.*\)")
+        r2 = re.compile(r"\(.*")
         called_template_methods_from_handle_message = set([r2.sub("", l.strip().replace("self.","")) for l in inspect.getsource(self.handle_message).split('\n') if r1.search(l)])
 
         for method_name, member_func in inspect.getmembers(self, inspect.ismethod):