diff --git a/pym/update/update.py b/pym/update/update.py
index fb78950..bbd3232 100644
--- a/pym/update/update.py
+++ b/pym/update/update.py
@@ -1,4 +1,4 @@
-#-*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 
 # Copyright 2014 Calculate Ltd. http://www.calculate-linux.org
 #
@@ -22,6 +22,7 @@ import os
 import time
 from calculate.core.server.gen_pid import search_worked_process
 from calculate.core.setup_cache import Cache as SetupCache
+from calculate.core.server.func import MethodsInterface
 from calculate.lib.cl_template import SystemIni
 from calculate.lib.datavars import DataVarsError
 
@@ -62,6 +63,7 @@ __ = getLazyLocalTranslate(_)
 class UpdateError(AddonError):
     """Update Error"""
 
+
 class OverlayOwnCache(MutableSet):
     """
     Сет оверлеев с интегрированным кэшем
@@ -120,7 +122,7 @@ def variable_module(var_env):
     return variable_module_decor
 
 
-class Update(object):
+class Update(MethodsInterface):
     """Основной объект для выполнения действий связанных с обновлением системы
 
     """
@@ -139,8 +141,9 @@ class Update(object):
         self.update_map = {}
         self.refresh_binhost = False
 
-    def get_prog_path(self, progname):
-        return getProgPath(progname)
+    @staticmethod
+    def get_prog_path(program_name):
+        return getProgPath(program_name)
 
     def _syncRepository(self, name, url, rpath, revision,
                         cb_progress=None):
@@ -149,16 +152,16 @@ class Update(object):
         """
         dv = self.clVars
         git = Git()
-        info_outdate = False
+        info_outdated = False
         try:
             self.stash_cache(rpath, name)
             if not git.checkExistsRep(rpath):
                 git.cloneTagRepository(url, rpath, revision,
                                        cb_progress=cb_progress)
-                info_outdate = True
+                info_outdated = True
             else:
+                cr = ""
                 try:
-                    cr = ""
                     need_update = False
                     tag_cr = git.getCommit(rpath, revision)
                     cr = git.getCurrentCommit(rpath)
@@ -174,8 +177,8 @@ class Update(object):
                                             cb_progress=cb_progress)
                     new_cr = git.getCurrentCommit(rpath)
                     if new_cr != cr:
-                        info_outdate = True
-            if info_outdate:
+                        info_outdated = True
+            if info_outdated:
                 self.raiseOutdate()
                 dv.Set('cl_update_outdate_set', 'on', force=True)
         finally:
@@ -279,8 +282,6 @@ class Update(object):
             raise UpdateError(_("Configuration variables for repositories "
                                 "are not setup"))
         chroot_path = path.normpath(self.clVars.Get('cl_chroot_path'))
-        # TODO: DEBUG
-        # print "DEBUG", repname, revision
         if chroot_path == '/':
             rpath_orig = rpath
         else:
@@ -321,7 +322,7 @@ class Update(object):
                     if path.exists(rpath_new):
                         removeDir(rpath_new)
         else:
-            if not self._syncRepository(repname, url, rpath, revision, branch):
+            if not self._syncRepository(repname, url, rpath, revision):
                 return "skip"
 
         layman = Layman(dv.Get('cl_update_layman_installed'),
@@ -329,8 +330,6 @@ class Update(object):
                         dv.Get('cl_update_layman_conf'),
                         prefix=chroot_path)
         if repname != "portage":
-            # TODO: debug block
-            #print "EEEE",repname, url, rpath_orig
             layman.add(repname, url, rpath_orig)
         return True
 
@@ -388,7 +387,6 @@ class Update(object):
             if all(not path.exists(path.join(rpath, x)) for x in cachenames):
                 OverlayOwnCache(self.clVars).discard(name)
 
-
     def syncLaymanRepository(self, repname):
         """
         Обновить репозиторий через layman
@@ -520,8 +518,7 @@ class Update(object):
         _print = self.color_print
         one = _print("{0}", num)
         two = _print("{0}", max_num)
-        part = _("({current} of {maximum})").format(current=one,
-                                                     maximum=two)
+        part = _("({current} of {maximum})").format(current=one, maximum=two)
         _print = _print.foreground(Colors.DEFAULT)
         if self.is_binary_pkg(pkg,binary):
             _colorprint = _print.foreground(Colors.PURPLE)
@@ -551,7 +548,6 @@ class Update(object):
             _print = _print.foreground(Colors.PURPLE)
         else:
             _print = _print.foreground(Colors.GREEN)
-        #print listDirectory('/var/db/pkg/%s' % pkg['CATEGORY'])
         pkg_key = "{CATEGORY}/{PF}".format(**pkg)
         if pkg_key in self.update_map:
             self.startTask(_("Installing {pkg} [{oldver}]").format(
@@ -559,7 +555,6 @@ class Update(object):
         else:
             self.startTask(_("Installing %s") % (_print(str(pkg))))
 
-
     def _printFetching(self, fn):
         """
         Вывод сообщения о скачивании
@@ -584,7 +579,7 @@ class Update(object):
 
         self.startTask(
             _("Unmerging{part} {package}").format(part=part,
-                                                 package=_print(str(pkg))))
+                                                  package=_print(str(pkg))))
 
     def emergelike(self, cmd, *params):
         """
@@ -977,23 +972,16 @@ class Update(object):
             if not profile_dv:
                 raise UpdateError(
                     _("Failed to use the new profile. Try again."))
-            for var_name in (#'cl_update_rep_rev',
-                             'cl_update_rep_path',
+            for var_name in ('cl_update_rep_path',
                              'cl_update_rep_url',
                              'cl_update_rep_name',
                              'cl_update_branch',
                              'cl_update_binhost_list',
                              'cl_update_branch_name',
                              'cl_profile_system',
-                             'cl_update_rep'
-                             ):
-                # TODO: debug block
-                #print var_name, ":", profile_dv.Get(var_name)
+                             'cl_update_rep'):
                 dv.Set(var_name, profile_dv.Get(var_name), force=True)
             dv.Set('cl_chroot_path', chroot, force=True)
-            # TODO: debug block
-            #print ('cl_builder_branch_name',
-            #       self.clVars.Get('cl_builder_branch_name'))
         except DataVarsError as e:
             print str(e)
             raise UpdateError(_("Wrong profile"))