diff --git a/custom/custom/alembic/env.py b/custom/custom/alembic/env.py
index 75f18d185..72c8c7993 100644
--- a/custom/custom/alembic/env.py
+++ b/custom/custom/alembic/env.py
@@ -1,10 +1,11 @@
 """Pyramid bootstrap environment. """
 
 from alembic import context
-from custom.models.meta import Base
 from pyramid.paster import get_appsettings, setup_logging
 from sqlalchemy import engine_from_config
 
+from custom.models.meta import Base
+
 config = context.config
 
 setup_logging(config.config_file_name)
diff --git a/custom/custom/scripts/initialize_db.py b/custom/custom/scripts/initialize_db.py
index ad0644727..f7a818abf 100644
--- a/custom/custom/scripts/initialize_db.py
+++ b/custom/custom/scripts/initialize_db.py
@@ -1,10 +1,11 @@
 import argparse
 import sys
 
-from custom.models.meta import Base
 from pyramid.paster import bootstrap, setup_logging
 from sqlalchemy.exc import OperationalError
 
+from custom.models.meta import Base
+
 
 def setup_models(dbsession):
     """
diff --git a/custom/custom/views/feedback.py b/custom/custom/views/feedback.py
index 5bd31c17b..0da4e22d0 100644
--- a/custom/custom/views/feedback.py
+++ b/custom/custom/views/feedback.py
@@ -5,9 +5,10 @@
 import pyramid.request
 import requests
 from cornice import Service
+from pyramid.httpexceptions import HTTPBadRequest
+
 from custom.models.feedback import Feedback
 from custom.util.send_mail import send_mail
-from pyramid.httpexceptions import HTTPBadRequest
 
 LOG = logging.getLogger(__name__)
 
diff --git a/custom/tests/conftest.py b/custom/tests/conftest.py
index 4145a9043..b241dffe0 100644
--- a/custom/tests/conftest.py
+++ b/custom/tests/conftest.py
@@ -6,12 +6,13 @@
 import pytest
 import transaction
 import webtest
-from custom import main, models
-from custom.models.meta import Base
 from pyramid.paster import get_appsettings
 from pyramid.scripting import prepare
 from pyramid.testing import DummyRequest, testConfig
 
+from custom import main, models
+from custom.models.meta import Base
+
 
 def pytest_addoption(parser):
     parser.addoption("--ini", action="store", metavar="INI_FILE")