diff --git a/README.md b/README.md
index 5b0cf88..924a398 100644
--- a/README.md
+++ b/README.md
@@ -43,8 +43,8 @@ Installation
 
         <script type="text/javascript" src="https://appcenter.intuit.com/Content/IA/intuit.ipp.anywhere.js"></script>
         <script>intuit.ipp.anywhere.setup({
-            menuProxy: '{{ base_url }}{% url quickbooks:quickbooks.views.blue_dot_menu %}',
-            grantUrl: '{{ base_url }}{% url quickbooks:quickbooks.views.request_oauth_token %}'
+            menuProxy: '{{ base_url }}{% url "quickbooks:blue_dot_menu" %}',
+            grantUrl: '{{ base_url }}{% url "quickbooks:request_oauth_token" %}'
         });</script>
 
 8. Add the connect button HTML (perhaps in user preferences):
diff --git a/quickbooks/api.py b/quickbooks/api.py
index 836504c..c874548 100644
--- a/quickbooks/api.py
+++ b/quickbooks/api.py
@@ -1,8 +1,11 @@
-import urllib
+try:
+    from urllib import quote
+except ImportError:
+    from urllib.parse import quote
 
 from requests_oauthlib import OAuth1Session
 from django.conf import settings
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from quickbooks.models import QuickbooksToken
 
 APPCENTER_URL_BASE = 'https://appcenter.intuit.com/api/v1/'
@@ -38,6 +41,7 @@ class DuplicateItemError(ApiError):
 class QuickbooksApi(object):
     """ This is an interface to the QBD and QBO v3 api."""
     def __init__(self, owner_or_token):
+        User = get_user_model()
         if isinstance(owner_or_token, User):
             self.token = QuickbooksToken.objects.filter(user=owner_or_token).first()
         elif isinstance(owner_or_token, QuickbooksToken):
@@ -104,7 +108,7 @@ def query(self, query):
             It is similar to SQL.
         """
         # [todo] - add error handling for v3 query
-        constructed_url = "{}/company/{}/query?query={}".format(self.url_base, self.realm_id, urllib.quote(query))
+        constructed_url = "{}/company/{}/query?query={}".format(self.url_base, self.realm_id, quote(query))
         return self.session.get(constructed_url).json()
 
     def create(self, object_type, object_body):
diff --git a/quickbooks/migrations/0001_initial.py b/quickbooks/migrations/0001_initial.py
index a99cacf..b296487 100644
--- a/quickbooks/migrations/0001_initial.py
+++ b/quickbooks/migrations/0001_initial.py
@@ -1,76 +1,27 @@
-# encoding: utf-8
-import datetime
-from south.db import db
-from south.v2 import SchemaMigration
-from django.db import models
-
-
-class Migration(SchemaMigration):
-
-    def forwards(self, orm):
-
-        # Adding model 'QuickbooksToken'
-        db.create_table('quickbooks_quickbookstoken', (
-            ('id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
-            ('user', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['auth.User'])),
-            ('access_token', self.gf('django.db.models.fields.CharField')(max_length=64)),
-            ('access_token_secret', self.gf('django.db.models.fields.CharField')(max_length=64)),
-            ('realm_id', self.gf('django.db.models.fields.CharField')(max_length=64)),
-            ('data_source', self.gf('django.db.models.fields.CharField')(max_length=10)),
-        ))
-        db.send_create_signal('quickbooks', ['QuickbooksToken'])
-
-    def backwards(self, orm):
-
-        # Deleting model 'QuickbooksToken'
-        db.delete_table('quickbooks_quickbookstoken')
-
-    models = {
-        'auth.group': {
-            'Meta': {'object_name': 'Group'},
-            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
-            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
-            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
-        },
-        'auth.permission': {
-            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
-            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
-            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
-            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
-            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
-        },
-        'auth.user': {
-            'Meta': {'object_name': 'User'},
-            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(2012, 6, 27, 11, 36, 43, 422782)'}),
-            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
-            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
-            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
-            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
-            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
-            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
-            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
-            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(2012, 6, 27, 11, 36, 43, 422631)'}),
-            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
-            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
-            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
-            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
-        },
-        'contenttypes.contenttype': {
-            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
-            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
-            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
-            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
-            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
-        },
-        'quickbooks.quickbookstoken': {
-            'Meta': {'object_name': 'QuickbooksToken'},
-            'access_token': ('django.db.models.fields.CharField', [], {'max_length': '64'}),
-            'access_token_secret': ('django.db.models.fields.CharField', [], {'max_length': '64'}),
-            'data_source': ('django.db.models.fields.CharField', [], {'max_length': '10'}),
-            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
-            'realm_id': ('django.db.models.fields.CharField', [], {'max_length': '64'}),
-            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
-        }
-    }
-
-    complete_apps = ['quickbooks']
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import django_extensions.db.fields.encrypted
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='QuickbooksToken',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('access_token', django_extensions.db.fields.encrypted.EncryptedCharField(max_length=255)),
+                ('access_token_secret', django_extensions.db.fields.encrypted.EncryptedCharField(max_length=255)),
+                ('realm_id', models.CharField(max_length=64)),
+                ('data_source', models.CharField(max_length=10)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]
diff --git a/quickbooks/models.py b/quickbooks/models.py
index 053254b..d2c6a3c 100644
--- a/quickbooks/models.py
+++ b/quickbooks/models.py
@@ -3,11 +3,10 @@
 from django.contrib.auth import get_user_model
 from django.conf import settings
 
-User = get_user_model()
 
 
 class QuickbooksToken(models.Model):
-    user = models.ForeignKey(settings.AUTH_USER_MODEL)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
     access_token = EncryptedCharField(max_length=255)
     access_token_secret = EncryptedCharField(max_length=255)
     realm_id = models.CharField(max_length=64)
@@ -19,6 +18,7 @@ class MissingTokenException(Exception):
 
 
 def find_quickbooks_token(request_or_user):
+    User = get_user_model()
     if isinstance(request_or_user, User):
         user = request_or_user
     else:
diff --git a/quickbooks/south_migrations/0001_initial.py b/quickbooks/south_migrations/0001_initial.py
new file mode 100644
index 0000000..a99cacf
--- /dev/null
+++ b/quickbooks/south_migrations/0001_initial.py
@@ -0,0 +1,76 @@
+# encoding: utf-8
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+
+        # Adding model 'QuickbooksToken'
+        db.create_table('quickbooks_quickbookstoken', (
+            ('id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
+            ('user', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['auth.User'])),
+            ('access_token', self.gf('django.db.models.fields.CharField')(max_length=64)),
+            ('access_token_secret', self.gf('django.db.models.fields.CharField')(max_length=64)),
+            ('realm_id', self.gf('django.db.models.fields.CharField')(max_length=64)),
+            ('data_source', self.gf('django.db.models.fields.CharField')(max_length=10)),
+        ))
+        db.send_create_signal('quickbooks', ['QuickbooksToken'])
+
+    def backwards(self, orm):
+
+        # Deleting model 'QuickbooksToken'
+        db.delete_table('quickbooks_quickbookstoken')
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(2012, 6, 27, 11, 36, 43, 422782)'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(2012, 6, 27, 11, 36, 43, 422631)'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'quickbooks.quickbookstoken': {
+            'Meta': {'object_name': 'QuickbooksToken'},
+            'access_token': ('django.db.models.fields.CharField', [], {'max_length': '64'}),
+            'access_token_secret': ('django.db.models.fields.CharField', [], {'max_length': '64'}),
+            'data_source': ('django.db.models.fields.CharField', [], {'max_length': '10'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'realm_id': ('django.db.models.fields.CharField', [], {'max_length': '64'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        }
+    }
+
+    complete_apps = ['quickbooks']
diff --git a/quickbooks/migrations/0002_auto__chg_field_quickbookstoken_access_token__chg_field_quickbookstoke.py b/quickbooks/south_migrations/0002_auto__chg_field_quickbookstoken_access_token__chg_field_quickbookstoke.py
similarity index 100%
rename from quickbooks/migrations/0002_auto__chg_field_quickbookstoken_access_token__chg_field_quickbookstoke.py
rename to quickbooks/south_migrations/0002_auto__chg_field_quickbookstoken_access_token__chg_field_quickbookstoke.py
diff --git a/quickbooks/migrations/__init__.py b/quickbooks/south_migrations/__init__.py
similarity index 100%
rename from quickbooks/migrations/__init__.py
rename to quickbooks/south_migrations/__init__.py
diff --git a/quickbooks/urls.py b/quickbooks/urls.py
index a3ac9f1..7d8227a 100644
--- a/quickbooks/urls.py
+++ b/quickbooks/urls.py
@@ -1,9 +1,12 @@
-from django.conf.urls import patterns
+from django.conf.urls import url
 
-urlpatterns = patterns('quickbooks.views',
-    (r'^request_oauth_token/?$',    'request_oauth_token'),
-    (r'^get_access_token/?$',       'get_access_token'),
-    (r'^blue_dot_menu/?$',          'blue_dot_menu'),
-    (r'^disconnect/?$',             'disconnect'),
-)
+from . import views
+
+app_name = 'quickbooks'
 
+urlpatterns = (
+    url(r'^request_oauth_token/?$',    views.request_oauth_token,  name='request_oauth_token'),
+    url(r'^get_access_token/?$',       views.get_access_token,     name='get_access_token'),
+    url(r'^blue_dot_menu/?$',          views.blue_dot_menu,        name='blue_dot_menu'),
+    url(r'^disconnect/?$',             views.disconnect,           name='disconnect'),
+)
diff --git a/quickbooks/views.py b/quickbooks/views.py
index b7ba44c..9516acf 100644
--- a/quickbooks/views.py
+++ b/quickbooks/views.py
@@ -9,6 +9,11 @@
 from .api import QuickbooksApi, AuthenticationFailure
 from .signals import qb_connected
 
+try:
+    unicode
+except NameError:
+    unicode = str
+
 REQUEST_TOKEN_URL = 'https://oauth.intuit.com/oauth/v1/get_request_token'
 ACCESS_TOKEN_URL = 'https://oauth.intuit.com/oauth/v1/get_access_token'
 AUTHORIZATION_URL = 'https://appcenter.intuit.com/Connect/Begin'