Make pep8 happy on sachsen module

modules/sachsen/pages.py

@@ -19,12 +19,13 @@
 
 from datetime import datetime, date, time
 from weboob.tools.browser import BasePage
-
 from weboob.capabilities.gauge import Gauge, GaugeMeasure
 from weboob.capabilities.base import NotAvailable
 
+
 __all__ = ['ListPage', 'HistoryPage']
 
+
 class ListPage(BasePage):
     def get_rivers_list(self):
         l = []
@@ -58,6 +59,7 @@ class ListPage(BasePage):
             l.append(gauge)
         return l
 
+
 class HistoryPage(BasePage):
     def iter_history(self):
         table = self.document.getroot().cssselect('table[width="215"]')

modules/sachsen/test.py

@@ -20,6 +20,7 @@
 
 from weboob.tools.test import BackendTest
 
+
 class SachsenTest(BackendTest):
     BACKEND = 'sachsen'