A bunch of comments adhering to pep8

- and some formatting fixes I believe

go/go/admin.py

+"""
+go/admin.py
+"""
+
 # Future Imports
 from __future__ import unicode_literals, absolute_import, print_function, division
 

go/go/cas_callbacks.py

+"""
+go/cas_callbacks.py
+"""
+
 # Future Imports
 from __future__ import unicode_literals, absolute_import, print_function, division
 

go/go/forms.py

+"""
+go/forms.py
+"""
+
 # Future Imports
 from __future__ import unicode_literals, absolute_import, print_function, division
 

go/go/models.py

+"""
+go/models.py
+"""
+
 # Future Imports
-from __future__ import unicode_literals, absolute_import, print_function, division
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
 
 # Python stdlib Imports
 import string
 
 # Django Imports
-from django.db import models
 from django.contrib.auth.models import User
-from django.utils import timezone
 from django.core.cache import cache
+from django.db import models
 from django.db.models.signals import post_save
 from django.dispatch import receiver
+from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
 
 # Other Imports
-from hashids import Hashids # http://hashids.org/python/
+from hashids import Hashids  # http://hashids.org/python/
 
 # generate the salt and initialize Hashids
-hashids = Hashids(salt="srct.gmu.edu", alphabet=(string.ascii_lowercase + string.digits))
+HASHIDS = Hashids(
+    salt="srct.gmu.edu", alphabet=(string.ascii_lowercase + string.digits)
+)
 
 @python_2_unicode_compatible
 class RegisteredUser(models.Model):
     """
-    This is simply a wrapper model for the user object  which, if an object
+    This is simply a wrapper model for the user object which, if an object
     exists, indicates that that user is registered.
     """
 
@@ -58,13 +65,15 @@ class RegisteredUser(models.Model):
         str(RegisteredUser)
         """
 
-        return '<Registered User: %s - Approval Status: %s>' % (self.user, self.approved)
+        return '<Registered User: %s - Approval Status: %s>' % (
+            self.user, self.approved
+        )
 
 
 @receiver(post_save, sender=User)
 def handle_regUser_creation(sender, instance, created, **kwargs):
     """
-    When a post_save is called on a User object (and it is newly created), this 
+    When a post_save is called on a User object (and it is newly created), this
     is called to create an associated RegisteredUser
     """
 
@@ -105,7 +114,9 @@ class URL(models.Model):
         print(URL)
         """
 
-        return '<Owner: %s - Target URL: %s>' % (self.owner.user, self.target)
+        return '<Owner: %s - Target URL: %s>' % (
+            self.owner.user, self.target
+        )
 
     class Meta:
         """
@@ -124,13 +135,14 @@ class URL(models.Model):
         if cache.get("hashids_counter") is None:
             cache.set("hashids_counter", URL.objects.count())
         cache.incr("hashids_counter")
-        short = hashids.encrypt(cache.get("hashids_counter"))
+        short = HASHIDS.encrypt(cache.get("hashids_counter"))
         tries = 1
         while tries < 100:
             try:
-                URL.objects.get(short__iexact = short)
+                URL.objects.get(short__iexact=short)
                 tries += 1
                 cache.incr("hashids_counter")
             except URL.DoesNotExist as ex:
+                print(ex)
                 return short
         return None

go/go/test_views.py

+"""
+go/test_views.py
+
+References:
+    - http://stackoverflow.com/a/11887308
+"""
+
 # Future Imports
-from __future__ import unicode_literals, absolute_import, print_function, division
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
 
 # Django Imports
 from django.test import TestCase
 
 # App Imports
-from go.views import index, view, my_links, delete, signup, redirection, useradmin
+from go.views import (
+    index, view, my_links, delete, signup, redirection, useradmin
+)
 
 class IndexTest(TestCase):
     """

go/go/views.py

+"""
+go/views.py
+"""
+
 # Future Imports
 from __future__ import unicode_literals, absolute_import, print_function, division
 
@@ -12,7 +16,6 @@ from django.utils import timezone
 from django.core.exceptions import PermissionDenied  # ValidationError
 from django.core.mail import send_mail, EmailMessage
 from django.contrib.auth import REDIRECT_FIELD_NAME
-from django.contrib.auth.models import User
 from django.contrib.auth.decorators import user_passes_test, login_required
 from django.shortcuts import render, get_object_or_404, redirect
 
@@ -61,9 +64,7 @@ def index(request):
 
             # If there is a 500 error returned, handle it
             if res == 500:
-                return HttpResponseServerError(
-                    render(request, 'admin/500.html', {})
-                )
+                return HttpResponseServerError(render(request, '500.html'))
 
             # Redirect to the shiny new URL
             return redirect('view', res.short)
@@ -86,7 +87,7 @@ def index(request):
 @ratelimit(key='user', rate='25/d', method='POST', block=True)
 def post(request, url_form):
     """
-    Function that handles POST requests for the URL creation ProcessLookupError
+    Helper function that handles POST requests for the URL creation
     """
 
     # We don't commit the url object yet because we need to add its
@@ -138,8 +139,8 @@ def post(request, url_form):
 
 def view(request, short):
     """
-    This view allows the user to view details about a URL. Note that they
-    do not need to be logged in to view info.
+    This view allows the user to "view details" about a URL. Note that they
+    do not need to be logged in to view this information.
     """
 
     # Get the current domain info
@@ -204,7 +205,8 @@ def delete(request, short):
 @login_required
 def signup(request):
     """
-    This view presents the user with a registration form. You can register yourself.
+    This view presents the user with a registration form. You can register
+    yourself.
     """
 
     # Do not display signup page to registered or approved users
@@ -317,7 +319,7 @@ def redirection(request, short):
 
     # If the user is trying to make a Go link to itself, we 404 them
     if url.target == domain + short:
-        return redirect('admin/404.html')
+        return redirect('404.html')
 
     # If the user is coming from a QR request then increment qrclicks
     if 'qr' in request.GET:
@@ -339,8 +341,8 @@ def staff_member_required(view_func, redirect_field_name=REDIRECT_FIELD_NAME, lo
 
     return user_passes_test(
         lambda u: u.is_active and u.is_staff,
-        login_url = login_url,
-        redirect_field_name = redirect_field_name
+        login_url=login_url,
+        redirect_field_name=redirect_field_name
     )(view_func)
 
 @staff_member_required