diff --git a/modules/cappedtv/backend.py b/modules/cappedtv/backend.py
index fefc4203..4eada73b 100644
--- a/modules/cappedtv/backend.py
+++ b/modules/cappedtv/backend.py
@@ -8,10 +8,11 @@
 # To Public License, Version 2, as published by Sam Hocevar. See
 # http://sam.zoy.org/wtfpl/COPYING for more details.
 
+from __future__ import with_statement
 
 from weboob.capabilities.video import ICapVideo
 from weboob.tools.backend import BaseBackend
-from .browser import CappedBrowser,CappedVideo
+from .browser import CappedBrowser, CappedVideo
 
 
 __all__ = ['CappedBackend']
diff --git a/modules/creditmutuel/backend.py b/modules/creditmutuel/backend.py
index bd2e2c79..aeef3a97 100644
--- a/modules/creditmutuel/backend.py
+++ b/modules/creditmutuel/backend.py
@@ -17,6 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
 
 from weboob.capabilities.bank import ICapBank, AccountNotFound, Recipient, Account
 from weboob.tools.backend import BaseBackend, BackendConfig
@@ -83,4 +84,3 @@ class CreditMutuelBackend(BaseBackend, ICapBank):
 
         with self.browser:
             return self.browser.transfer(account, to, amount, reason)
-
diff --git a/modules/freemobile/backend.py b/modules/freemobile/backend.py
index c6804515..5faf2ba0 100644
--- a/modules/freemobile/backend.py
+++ b/modules/freemobile/backend.py
@@ -17,6 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
 
 from weboob.capabilities.bill import ICapBill, SubscriptionNotFound
 from weboob.tools.backend import BaseBackend, BackendConfig
@@ -58,16 +59,14 @@ class FreeMobileBackend(BaseBackend, ICapBill):
         else:
             raise SubscriptionNotFound()
 
-    
     def iter_history(self, subscription):
         raise NotImplementedError()
-    
+
     def get_pdf(self, account):
         raise NotImplementedError()
 
     # The subscription is actually useless, but maybe for the futur...
-    def get_details(self, subscription): 
+    def get_details(self, subscription):
         with self.browser:
             for detail in self.browser.get_details():
                 yield detail
-
diff --git a/modules/hsbc/backend.py b/modules/hsbc/backend.py
index 567daddf..32eb902a 100644
--- a/modules/hsbc/backend.py
+++ b/modules/hsbc/backend.py
@@ -17,6 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
 
 from weboob.capabilities.bank import ICapBank, AccountNotFound
 from weboob.tools.backend import BaseBackend, BackendConfig
diff --git a/modules/pap/backend.py b/modules/pap/backend.py
index 542e8be2..3124a3e1 100644
--- a/modules/pap/backend.py
+++ b/modules/pap/backend.py
@@ -17,6 +17,8 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
+
 from weboob.capabilities.housing import ICapHousing, City, Housing, HousingPhoto
 from weboob.tools.backend import BaseBackend
 
diff --git a/modules/radiofrance/backend.py b/modules/radiofrance/backend.py
index 01ca6e0a..a474ed22 100644
--- a/modules/radiofrance/backend.py
+++ b/modules/radiofrance/backend.py
@@ -17,6 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
 
 from weboob.capabilities.base import NotLoaded
 from weboob.capabilities.video import ICapVideo
@@ -24,7 +25,6 @@ from weboob.capabilities.radio import ICapRadio, Radio, Stream, Emission
 from weboob.capabilities.collection import ICapCollection, CollectionNotFound, Collection
 from weboob.tools.backend import BaseBackend
 
-
 from .browser import RadioFranceBrowser, RadioFranceVideo
 
 
@@ -40,8 +40,8 @@ class RadioFranceBackend(BaseBackend, ICapRadio, ICapCollection, ICapVideo):
     LICENSE = 'AGPLv3+'
     BROWSER = RadioFranceBrowser
 
-    _MP3_URL =  u'http://mp3.live.tv-radio.com/%s/all/%s.mp3'
-    _MP3_HD_URL =  u'http://mp3.live.tv-radio.com/%s/all/%shautdebit.mp3'
+    _MP3_URL = u'http://mp3.live.tv-radio.com/%s/all/%s.mp3'
+    _MP3_HD_URL = u'http://mp3.live.tv-radio.com/%s/all/%shautdebit.mp3'
     _RADIOS = {'franceinter': (u'France Inter', True),
         'franceculture': (u'France Culture', True),
         'franceinfo': (u'France Info', False),
diff --git a/modules/seloger/backend.py b/modules/seloger/backend.py
index 14d9d5fe..5d673df3 100644
--- a/modules/seloger/backend.py
+++ b/modules/seloger/backend.py
@@ -17,6 +17,8 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
+
 from weboob.capabilities.housing import ICapHousing, City, Housing, HousingPhoto
 from weboob.tools.backend import BaseBackend
 
diff --git a/tools/install_xdg.py b/tools/install_xdg.py
index dc5d46b2..670af856 100755
--- a/tools/install_xdg.py
+++ b/tools/install_xdg.py
@@ -1,9 +1,12 @@
 #!/usr/bin/env python
+from __future__ import with_statement
+
 import glob
 import subprocess
 import os
 import sys
 
+
 def check_executable(executable):
     with open('/dev/null', 'w') as devnull:
         process = subprocess.Popen(['which', executable], stdout=devnull)
@@ -14,6 +17,7 @@ def check_executable(executable):
         print >>sys.stderr, 'Error: %s is not installed on your system.' % executable
         sys.exit(1)
 
+
 def install_xdg():
     print 'installing desktop menu files'
     check_executable('xdg-desktop-menu')
diff --git a/weboob/applications/galleroob/galleroob.py b/weboob/applications/galleroob/galleroob.py
index 80c945bf..8c41499c 100644
--- a/weboob/applications/galleroob/galleroob.py
+++ b/weboob/applications/galleroob/galleroob.py
@@ -17,6 +17,8 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
+
 import sys
 import os
 from re import search, sub
@@ -114,8 +116,8 @@ class Galleroob(ReplApplication):
         try:
             os.mkdir(dest)
         except OSError:
-            pass # ignore error on existing directory
-        os.chdir(dest) # fail here if dest couldn't be created
+            pass  # ignore error on existing directory
+        os.chdir(dest)  # fail here if dest couldn't be created
 
         i = 0
         for img in backend.iter_gallery_images(gallery):
@@ -123,9 +125,9 @@ class Galleroob(ReplApplication):
             if i < first:
                 continue
 
-            backend.fillobj(img, ('url','data'))
+            backend.fillobj(img, ('url', 'data'))
             if img.data is None:
-                backend.fillobj(img, ('url','data'))
+                backend.fillobj(img, ('url', 'data'))
                 if img.data is None:
                     print >>sys.stderr, "Couldn't get page %d, exiting" % i
                     break
@@ -136,7 +138,6 @@ class Galleroob(ReplApplication):
             else:
                 ext = "jpg"
 
-
             name = '%03d.%s' % (i, ext)
             print 'Writing file %s' % name
 
@@ -155,7 +156,7 @@ class Galleroob(ReplApplication):
 
         gallery = self.get_object(_id, 'get_gallery')
         if not gallery:
-            print >>sys.stderr, 'Gallery not found: %s' %  _id
+            print >>sys.stderr, 'Gallery not found: %s' % _id
             return 3
         self.format(gallery)
         self.flush()
diff --git a/weboob/tools/application/qt/backendcfg.py b/weboob/tools/application/qt/backendcfg.py
index a4689a16..5e29800a 100644
--- a/weboob/tools/application/qt/backendcfg.py
+++ b/weboob/tools/application/qt/backendcfg.py
@@ -17,6 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import with_statement
 
 from PyQt4.QtGui import QDialog, QTreeWidgetItem, QLabel, QFormLayout, \
                         QMessageBox, QPixmap, QImage, QIcon, QHeaderView, \
@@ -56,6 +57,7 @@ class RepositoriesDialog(QDialog):
             fp.write(self.ui.reposEdit.toPlainText())
         self.accept()
 
+
 class IconFetcher(QThread):
     def __init__(self, weboob, item, minfo):
         QThread.__init__(self)
@@ -67,17 +69,19 @@ class IconFetcher(QThread):
         self.weboob.repositories.retrieve_icon(self.minfo)
         self.emit(SIGNAL('retrieved'), self)
 
+
 class ProgressDialog(IProgress, QProgressDialog):
     def __init__(self, *args, **kwargs):
         QProgressDialog.__init__(self, *args, **kwargs)
 
     def progress(self, percent, message):
-        self.setValue(int(percent*100))
+        self.setValue(int(percent * 100))
         self.setLabelText(message)
 
     def error(self, message):
         QMessageBox.critical(self, self.tr('Error'), '%s' % message, QMessageBox.Ok)
 
+
 class BackendCfg(QDialog):
     def __init__(self, weboob, caps=None, parent=None):
         QDialog.__init__(self, parent)