PEP8 compliance for URL model

- Plus __str__ now prints like registereduser does

go/go/models.py

 # Future Imports
 from __future__ import unicode_literals, absolute_import, print_function, division
 
+# Python stdlib Imports
+import string
+
 # Django Imports
 from django.db import models
 from django.contrib.auth.models import User
@@ -12,7 +15,6 @@ from django.utils.encoding import python_2_unicode_compatible
 
 # Other Imports
 from hashids import Hashids # http://hashids.org/python/
-import string
 
 # generate the salt and initialize Hashids
 hashids = Hashids(salt="srct.gmu.edu", alphabet=(string.ascii_lowercase + string.digits))
@@ -24,9 +26,6 @@ class RegisteredUser(models.Model):
         exists, indicates that that user is registered.
     """
 
-    # Is this User Blocked?
-    blocked = models.BooleanField(default=False)
-
     # Let's associate a User to this RegisteredUser
     user = models.OneToOneField(User)
 
@@ -51,7 +50,10 @@ class RegisteredUser(models.Model):
     # Are you approved to use Go?
     approved = models.BooleanField(default=False)
 
-    # print(RegisteredUser)
+    # Is this User Blocked?
+    blocked = models.BooleanField(default=False)
+
+    # str(RegisteredUser)
     def __str__(self):
         return '<Registered User: %s - Approval Status: %s>' % (self.user, self.approved)
 
@@ -64,37 +66,37 @@ def handle_regUser_creation(sender, instance, created, **kwargs):
         RegisteredUser.objects.create(user=instance)
 
 
-"""
-    This model represents a stored URL redirection rule. Each URL has an
-    owner, target url, short identifier, click counter, and expiration
-    date.
-"""
 @python_2_unicode_compatible
 class URL(models.Model):
+    """
+        This model represents a stored URL redirection rule. Each URL has an
+        owner, target url, short identifier, click counter, and expiration
+        date.
+    """
 
     # Who is the owner of this Go link
     owner = models.ForeignKey(RegisteredUser)
     # When was this link created?
-    date_created = models.DateTimeField(default = timezone.now)
+    date_created = models.DateTimeField(default=timezone.now)
 
     # What is the target URL for this Go link
-    target = models.URLField(max_length = 1000)
+    target = models.URLField(max_length=1000)
     # What is the actual go link (short url) for this URL
-    short = models.SlugField(max_length = 20, primary_key = True)
+    short = models.SlugField(max_length=20, primary_key=True)
 
     # how many people have visited this Go link
-    clicks = models.IntegerField(default = 0)
+    clicks = models.IntegerField(default=0)
     # how many people have visited this Go link through the qr code
-    qrclicks = models.IntegerField(default = 0)
+    qrclicks = models.IntegerField(default=0)
     # how many people have visited the go link through social media
-    socialclicks = models.IntegerField(default = 0)
+    socialclicks = models.IntegerField(default=0)
 
     # does this Go link expire on a certain date
-    expires = models.DateTimeField(blank = True, null = True)
+    expires = models.DateTimeField(blank=True, null=True)
 
     # print(URL)
     def __str__(self):
-        return '<%s : %s>' % (self.owner.user, self.target)
+        return '<Owner: %s - Target URL: %s>' % (self.owner.user, self.target)
 
     # metadata for URL's
     class Meta: