Release 2a04c5bb4a; Exception message added to log in case of a callback exception

__init__.py

@@ -478,8 +478,8 @@ class pure_json_protocol(object):
                     try:
                         self.logger.debug("%s Executing callback %s to process received data", self.__log_prefix__(), callback.__name__)
                         status, data = callback(msg, *args, **kwargs)
-                    except Exception:
-                        logger.error('{lp} Exception raised. Check callback {callback_name} and it\'s return values for service_id  {service_id} and data_id {data_id}'.format(lp=self.__log_prefix__(), callback_name=callback.__name__, service_id=repr(msg.get_service_id()), data_id=repr(msg.get_data_id())))
+                    except Exception as e:
+                        logger.error('{lp} Exception raised. Check callback {callback_name}: "{message}" and it\'s return values for service_id  {service_id} and data_id {data_id}'.format(lp=self.__log_prefix__(), callback_name=callback.__name__, message=str(e), service_id=repr(msg.get_service_id()), data_id=repr(msg.get_data_id())))
                         status = STATUS_CALLBACK_ERROR
                         data = None
             else: