diff --git a/modules/contrib/hddtemp.py b/modules/contrib/hddtemp.py
index ff09d3b..0a70bf1 100644
--- a/modules/contrib/hddtemp.py
+++ b/modules/contrib/hddtemp.py
@@ -6,8 +6,8 @@ that runs on localhost and default port (7634)
 
 import socket
 
-import bumblebee.engine
-import bumblebee.output
+import core.module
+import core.widget
 
 HOST = 'localhost'
 PORT = 7634
@@ -16,17 +16,15 @@ CHUNK_SIZE = 1024
 RECORD_SIZE = 5
 SEPARATOR = '|'
 
+class Module(core.module.Module):
+    def __init__(self, config):
+        super().__init__(config, core.widget.Widget(self.hddtemps))
+        self.__hddtemps = self.__get_hddtemps()
 
-class Module(bumblebee.engine.Module):
-    def __init__(self, engine, config):
-        widget = bumblebee.output.Widget(full_text=self.hddtemps)
-        super(Module, self).__init__(engine, config, widget)
-        self._hddtemps = self._get_hddtemps()
+    def hddtemps(self, _):
+        return self.__hddtemps
 
-    def hddtemps(self, __):
-        return self._hddtemps
-
-    def _fetch_data(self):
+    def __fetch_data(self):
         """fetch data from hddtemp service"""
         try:
             with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
@@ -43,7 +41,7 @@ class Module(bumblebee.engine.Module):
             pass
 
     @staticmethod
-    def _get_parts(data):
+    def __get_parts(data):
         """
             split data using | separator and remove first item
             (because the first item is empty)
@@ -52,7 +50,7 @@ class Module(bumblebee.engine.Module):
         return parts
 
     @staticmethod
-    def _partition_parts(parts):
+    def __partition_parts(parts):
         """
             partition parts: one device record is five (5) items
         """
@@ -61,7 +59,7 @@ class Module(bumblebee.engine.Module):
         return per_disk
 
     @staticmethod
-    def _get_name_and_temp(device_record):
+    def __get_name_and_temp(device_record):
         """
             get device name (without /dev part, to save space on bar)
             and temperature (in °C) as tuple
@@ -71,20 +69,22 @@ class Module(bumblebee.engine.Module):
         return (device_name, device_temp)
 
     @staticmethod
-    def _get_hddtemp(device_record):
+    def __get_hddtemp(device_record):
         name, temp = device_record
         hddtemp = '{}+{}°C'.format(name, temp)
         return hddtemp
 
-    def _get_hddtemps(self):
-        data = self._fetch_data()
+    def __get_hddtemps(self):
+        data = self.__fetch_data()
         if data is None:
             return 'n/a'
-        parts = self._get_parts(data)
-        per_disk = self._partition_parts(parts)
-        names_and_temps = [self._get_name_and_temp(x) for x in per_disk]
-        hddtemps = [self._get_hddtemp(x) for x in names_and_temps]
+        parts = self.__get_parts(data)
+        per_disk = self.__partition_parts(parts)
+        names_and_temps = [self.__get_name_and_temp(x) for x in per_disk]
+        hddtemps = [self.__get_hddtemp(x) for x in names_and_temps]
         return SEPARATOR.join(hddtemps)
 
-    def update(self, __):
-        self._hddtemps = self._get_hddtemps()
+    def update(self):
+        self.__hddtemps = self.__get_hddtemps()
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4