Fix pep8 and pyflakes

__tryton__.py

@@ -14,7 +14,7 @@
     'website': 'http://www.tryton.org/',
     'description': '''
 ''',
-    'description_ca_ES': '''Afegeix les hores de treball al dia, setmana, mes i 
+    'description_ca_ES': '''Afegeix les hores de treball al dia, setmana, mes i
 any per companyia.
 ''',
     'depends': [

res.py

@@ -7,7 +7,7 @@ class User(ModelSQL, ModelView):
     _name = 'res.user'
 
     def _get_preferences(self, user, context_only=False):
-        res = super(User, self)._get_preferences(user, 
+        res = super(User, self)._get_preferences(user,
             context_only=context_only)
         if user.company:
             res['company_work_time'] = {

tests/test_company_work_time.py

@@ -2,7 +2,8 @@
 #This file is part of Tryton.  The COPYRIGHT file at the top level of
 #this repository contains the full copyright notices and license terms.
 
-import sys, os
+import sys
+import os
 DIR = os.path.abspath(os.path.normpath(os.path.join(__file__,
     '..', '..', '..', '..', '..', 'trytond')))
 if os.path.isdir(DIR):
@@ -33,6 +34,7 @@ class CompanyWorkTimeTestCase(unittest.TestCase):
         '''
         test_depends()
 
+
 def suite():
     suite = trytond.tests.test_tryton.suite()
     suite.addTests(unittest.TestLoader().loadTestsFromTestCase(