diff --git a/cabot/cabotapp/tasks.py b/cabot/cabotapp/tasks.py
index a13412627..e748699e6 100644
--- a/cabot/cabotapp/tasks.py
+++ b/cabot/cabotapp/tasks.py
@@ -99,11 +99,7 @@ def clean_db(days_to_retain=7, batch_size=10000):
     InstanceStatusSnapshot.objects.filter(id__in=instance_snapshot_ids).delete()
 
     # If we reached the batch size on either we need to re-queue to continue cleaning up.
-    if (
-            result_count == batch_size or
-            service_snapshot_count == batch_size or
-            instance_snapshot_count == batch_size
-    ):
+    if result_count == batch_size or service_snapshot_count == batch_size or instance_snapshot_count == batch_size:
         clean_db.apply_async(kwargs={
             'days_to_retain': days_to_retain,
             'batch_size': batch_size},
diff --git a/cabot/cabotapp/views.py b/cabot/cabotapp/views.py
index 734a657ea..fdaf635ea 100644
--- a/cabot/cabotapp/views.py
+++ b/cabot/cabotapp/views.py
@@ -265,7 +265,7 @@ class Meta:
             }),
             'text_match': forms.TextInput(attrs={
                 'style': 'width: 100%',
-                'placeholder': '[Aa]rachnys\s+[Rr]ules',
+                'placeholder': r'[Aa]rachnys\s+[Rr]ules',
             }),
             'status_code': forms.TextInput(attrs={
                 'style': 'width: 20%',
diff --git a/cabot/settings.py b/cabot/settings.py
index 187860113..7699138a3 100644
--- a/cabot/settings.py
+++ b/cabot/settings.py
@@ -164,7 +164,7 @@
 COMPRESS_PRECOMPILERS = (
     ('text/coffeescript', 'coffee --compile --stdio'),
     ('text/eco',
-     'eco -i TEMPLATES {infile} && cat "$(echo "{infile}" | sed -e "s/\.eco$/.js/g")"'),
+     r'eco -i TEMPLATES {infile} && cat "$(echo "{infile}" | sed -e "s/\.eco$/.js/g")"'),
     ('text/less', 'lessc {infile} > {outfile}'),
 )