diff --git a/conntrackt/views.py b/conntrackt/views.py
--- a/conntrackt/views.py
+++ b/conntrackt/views.py
@@ -1,13 +1,13 @@
-# For generating ZIP files.
+# Standard library imports.
 from StringIO import StringIO
 from zipfile import ZipFile, ZIP_DEFLATED
 
-# Django-specific imports.
+# Django imports.
 from django.http import HttpResponse
 from django.shortcuts import render_to_response, get_object_or_404
 from django.views.generic import TemplateView, DetailView
 
-# Application-specific imports.
+# Application imports.
 from .models import Project, Entity, Location
 from .utils import generate_entity_iptables
 
@@ -62,8 +62,8 @@ class ProjectView(DetailView):
 
         # Add the (location, entities) tuple for each location that has entities
         # belonging to the related project.
-        for location in Location.objects.filter(entity__project = self.object).distinct():
-            entities = Entity.objects.filter(project = self.object, location = location)
+        for location in Location.objects.filter(entity__project=self.object).distinct():
+            entities = Entity.objects.filter(project=self.object, location=location)
             location_entities.append((location, entities))
 
         # Add the (location, entities) tuples to context.
@@ -118,7 +118,7 @@ def entity_iptables(request, pk):
 
     # Fetch the entity, and construct the response with iptables rules as
     # content.
-    entity = get_object_or_404(Entity, pk = pk)
+    entity = get_object_or_404(Entity, pk=pk)
     content = generate_entity_iptables(entity)
     response = HttpResponse(content, mimetype='text/plain')
     
@@ -129,7 +129,7 @@ def entity_iptables(request, pk):
     return response
 
 
-def project_iptables(request, project_id, location_id = None):
+def project_iptables(request, project_id, location_id=None):
     """
     Custom view for obtaining iptables for all entities of a project or project
     location in a single ZIP file.
@@ -152,7 +152,7 @@ def project_iptables(request, project_id
     """
 
     # Fetch the project.
-    project = get_object_or_404(Project, pk = project_id)
+    project = get_object_or_404(Project, pk=project_id)
 
     # Set-up a string IO object to which we'll write the ZIP file (in-memory).
     buff = StringIO()
@@ -169,7 +169,7 @@ def project_iptables(request, project_id
     # set-up the filename that will be suggested to the browser.
     if location_id:
         location = get_object_or_404(Location, pk=location_id)
-        entities = project.entity_set.filter(location = location)
+        entities = project.entity_set.filter(location=location)
         filename = '%s_%s-iptables.zip' % (project.name, location.name)
     else:
         entities = project.entity_set.all()