diff --git a/colab/proxy/gitlab/admin.py b/colab/proxy/gitlab/admin.py
deleted file mode 100644
index 8c38f3f..0000000
--- a/colab/proxy/gitlab/admin.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.contrib import admin
-
-# Register your models here.
diff --git a/colab/proxy/gitlab/models.py b/colab/proxy/gitlab/models.py
index 2998b7d..c0bd5e6 100644
--- a/colab/proxy/gitlab/models.py
+++ b/colab/proxy/gitlab/models.py
@@ -1,6 +1,5 @@
 from django.db import models
-from django.conf import settings
-from colab.accounts.models import User
+
 
 class GitlabProject(models.Model):
 
diff --git a/colab/proxy/gitlab/tests.py b/colab/proxy/gitlab/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/colab/proxy/gitlab/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/colab/proxy/jenkins/admin.py b/colab/proxy/jenkins/admin.py
deleted file mode 100644
index 8c38f3f..0000000
--- a/colab/proxy/jenkins/admin.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.contrib import admin
-
-# Register your models here.
diff --git a/colab/proxy/jenkins/models.py b/colab/proxy/jenkins/models.py
index 71a8362..e69de29 100644
--- a/colab/proxy/jenkins/models.py
+++ b/colab/proxy/jenkins/models.py
@@ -1,3 +0,0 @@
-from django.db import models
-
-# Create your models here.
diff --git a/colab/proxy/jenkins/tests.py b/colab/proxy/jenkins/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/colab/proxy/jenkins/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/colab/proxy/jenkins/views.py b/colab/proxy/jenkins/views.py
index e7ab64e..5555788 100644
--- a/colab/proxy/jenkins/views.py
+++ b/colab/proxy/jenkins/views.py
@@ -1,6 +1,4 @@
 
-from django.conf import settings
-
 from ..utils.views import ColabProxyView
 
 
diff --git a/colab/proxy/noosfero/admin.py b/colab/proxy/noosfero/admin.py
deleted file mode 100644
index 8c38f3f..0000000
--- a/colab/proxy/noosfero/admin.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.contrib import admin
-
-# Register your models here.
diff --git a/colab/proxy/noosfero/models.py b/colab/proxy/noosfero/models.py
index 71a8362..e69de29 100644
--- a/colab/proxy/noosfero/models.py
+++ b/colab/proxy/noosfero/models.py
@@ -1,3 +0,0 @@
-from django.db import models
-
-# Create your models here.
diff --git a/colab/proxy/noosfero/tests.py b/colab/proxy/noosfero/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/colab/proxy/noosfero/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/colab/proxy/redmine/admin.py b/colab/proxy/redmine/admin.py
deleted file mode 100644
index 8c38f3f..0000000
--- a/colab/proxy/redmine/admin.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.contrib import admin
-
-# Register your models here.
diff --git a/colab/proxy/redmine/models.py b/colab/proxy/redmine/models.py
index 71a8362..e69de29 100644
--- a/colab/proxy/redmine/models.py
+++ b/colab/proxy/redmine/models.py
@@ -1,3 +0,0 @@
-from django.db import models
-
-# Create your models here.
diff --git a/colab/proxy/redmine/tests.py b/colab/proxy/redmine/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/colab/proxy/redmine/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/colab/proxy/redmine/views.py b/colab/proxy/redmine/views.py
index 34f6f06..de1994e 100644
--- a/colab/proxy/redmine/views.py
+++ b/colab/proxy/redmine/views.py
@@ -1,6 +1,4 @@
 
-from django.conf import settings
-
 from ..utils.views import ColabProxyView
 
 
diff --git a/colab/proxy/trac/admin.py b/colab/proxy/trac/admin.py
index 6127dc7..bb4382f 100644
--- a/colab/proxy/trac/admin.py
+++ b/colab/proxy/trac/admin.py
@@ -1,3 +1 @@
-from django.contrib import admin
-
-from . import signals
+from . import signals  # noqa
diff --git a/colab/proxy/trac/routers.py b/colab/proxy/trac/routers.py
index 9d053cb..37a8ee9 100644
--- a/colab/proxy/trac/routers.py
+++ b/colab/proxy/trac/routers.py
@@ -11,7 +11,7 @@ class TracRouter(object):
 
     def allow_relation(self, obj1, obj2, **hints):
         if obj1._meta.app_label == 'proxy' or \
-            obj2._meta.app_label == 'proxy':
+           obj2._meta.app_label == 'proxy':
             return True
         return None
 
diff --git a/colab/proxy/trac/search_indexes.py b/colab/proxy/trac/search_indexes.py
index a4c0e97..0e0923f 100644
--- a/colab/proxy/trac/search_indexes.py
+++ b/colab/proxy/trac/search_indexes.py
@@ -1,10 +1,8 @@
 # -*- coding: utf-8 -*-
 
-import math
 import string
 
 from django.template import loader, Context
-from django.utils.text import slugify
 from haystack import indexes
 from haystack.utils import log as logging
 
@@ -15,7 +13,7 @@ from .models import Attachment, Ticket, Wiki, Revision
 logger = logging.getLogger('haystack')
 
 # the string maketrans always return a string encoded with latin1
-# http://stackoverflow.com/questions/1324067/how-do-i-get-str-translate-to-work-with-unicode-strings
+# http://stackoverflow.com/questions/1324067/how-do-i-get-str-translate-to-work-with-unicode-strings # noqa
 table = string.maketrans(
     string.punctuation,
     '.' * len(string.punctuation)
diff --git a/colab/proxy/trac/signals.py b/colab/proxy/trac/signals.py
index 62eb17c..cb0d4d1 100644
--- a/colab/proxy/trac/signals.py
+++ b/colab/proxy/trac/signals.py
@@ -12,22 +12,22 @@ def change_session_attribute_email(sender, instance, **kwargs):
 
     cursor.execute(("UPDATE session_attribute SET value=%s "
                     "WHERE name='email' AND sid=%s"),
-                    [instance.email, instance.username])
+                   [instance.email, instance.username])
     cursor.execute(("UPDATE session_attribute SET value=%s "
                     "WHERE name='name' AND sid=%s"),
-                    [instance.get_full_name(), instance.username])
+                   [instance.get_full_name(), instance.username])
 
     cursor.execute(("INSERT INTO session_attribute "
                     "(sid, authenticated,  name, value) "
                     "SELECT %s, '1', 'email', %s WHERE NOT EXISTS "
                     "(SELECT 1 FROM session_attribute WHERE sid=%s "
                     "AND name='email')"),
-                    [instance.username, instance.email, instance.username])
+                   [instance.username, instance.email, instance.username])
 
     cursor.execute(("INSERT INTO session_attribute "
                     "(sid, authenticated, name, value) "
                     "SELECT %s, '1', 'name', %s WHERE NOT EXISTS "
                     "(SELECT 1 FROM session_attribute WHERE sid=%s "
                     "AND name='name')"),
-                    [instance.username, instance.get_full_name(),
-                     instance.username])
+                   [instance.username, instance.get_full_name(),
+                    instance.username])
diff --git a/colab/proxy/trac/tests.py b/colab/proxy/trac/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/colab/proxy/trac/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/colab/proxy/trac/views.py b/colab/proxy/trac/views.py
index d7291e4..c189e91 100644
--- a/colab/proxy/trac/views.py
+++ b/colab/proxy/trac/views.py
@@ -1,6 +1,4 @@
 
-from django.conf import settings
-
 from hitcounter.views import HitCounterViewMixin
 
 from ..utils.views import ColabProxyView
--
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