diff --git a/registrasion/controllers/discount.py b/registrasion/controllers/discount.py
index 6b9b7582..e73928d0 100644
--- a/registrasion/controllers/discount.py
+++ b/registrasion/controllers/discount.py
@@ -71,7 +71,7 @@ def available_discounts(user, categories, products):
         # is not available any more.
         past_uses = commerce.DiscountItem.objects.filter(
             cart__user=user,
-            cart__status=commerce.Cart.STATUS_PAID, # Only past carts count
+            cart__status=commerce.Cart.STATUS_PAID,  # Only past carts count
             discount=real_discount,
         )
         agg = past_uses.aggregate(Sum("quantity"))
diff --git a/registrasion/templatetags/registrasion_tags.py b/registrasion/templatetags/registrasion_tags.py
index bd31d1f4..fabc7754 100644
--- a/registrasion/templatetags/registrasion_tags.py
+++ b/registrasion/templatetags/registrasion_tags.py
@@ -10,6 +10,7 @@ register = template.Library()
 
 _ProductAndQuantity = namedtuple("ProductAndQuantity", ["product", "quantity"])
 
+
 class ProductAndQuantity(_ProductAndQuantity):
     ''' Class that holds a product and a quantity.
 
diff --git a/registrasion/tests/test_cart.py b/registrasion/tests/test_cart.py
index bf781bb1..790c1df9 100644
--- a/registrasion/tests/test_cart.py
+++ b/registrasion/tests/test_cart.py
@@ -26,12 +26,16 @@ class RegistrationCartTestCase(SetTimeMixin, TestCase):
         super(RegistrationCartTestCase, self).setUp()
 
     def tearDown(self):
-        if False:
+        if True:
             # If you're seeing segfaults in tests, enable this.
-            call_command('flush', verbosity=0, interactive=False,
-                             reset_sequences=False,
-                             allow_cascade=False,
-                             inhibit_post_migrate=False)
+            call_command(
+                'flush',
+                verbosity=0,
+                interactive=False,
+                reset_sequences=False,
+                allow_cascade=False,
+                inhibit_post_migrate=False
+            )
 
         super(RegistrationCartTestCase, self).tearDown()
 
@@ -51,11 +55,11 @@ class RegistrationCartTestCase(SetTimeMixin, TestCase):
             password='top_secret')
 
         attendee1 = people.Attendee.get_instance(cls.USER_1)
-        profile1 = people.AttendeeProfileBase.objects.create(
+        people.AttendeeProfileBase.objects.create(
             attendee=attendee1,
         )
         attendee2 = people.Attendee.get_instance(cls.USER_2)
-        profile2 = people.AttendeeProfileBase.objects.create(
+        people.AttendeeProfileBase.objects.create(
             attendee=attendee2,
         )
 
diff --git a/registrasion/tests/test_invoice.py b/registrasion/tests/test_invoice.py
index 9e5b55cf..f1ed6ed0 100644
--- a/registrasion/tests/test_invoice.py
+++ b/registrasion/tests/test_invoice.py
@@ -484,7 +484,7 @@ class InvoiceTestCase(RegistrationCartTestCase):
         invoice.pay("Paying into the void.", cnval, pre_validate=False)
 
         notes = commerce.CreditNote.objects.filter(invoice=invoice.invoice)
-        notes = sorted(notes, key = lambda note: note.value)
+        notes = sorted(notes, key=lambda note: note.value)
 
         self.assertEqual(cnval, notes[0].value)
         self.assertEqual(val, notes[1].value)
diff --git a/registrasion/views.py b/registrasion/views.py
index 19417b55..f10de90f 100644
--- a/registrasion/views.py
+++ b/registrasion/views.py
@@ -21,7 +21,6 @@ from django.contrib import messages
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.exceptions import ValidationError
 from django.http import Http404
-from django.shortcuts import get_object_or_404
 from django.shortcuts import redirect
 from django.shortcuts import render
 
@@ -42,17 +41,17 @@ class GuidedRegistrationSection(_GuidedRegistrationSection):
     ''' Represents a section of a guided registration page.
 
     Attributes:
-        title (str): The title of the section.
+       title (str): The title of the section.
 
-        discounts ([registrasion.contollers.discount.DiscountAndQuantity, ...]):
+       discounts ([registrasion.contollers.discount.DiscountAndQuantity, ...]):
             A list of discount objects that are available in the section. You
             can display ``.clause`` to show what the discount applies to, and
             ``.quantity`` to display the number of times that discount can be
             applied.
 
-        description (str): A description of the section.
+       description (str): A description of the section.
 
-        form (forms.Form): A form to display.
+       form (forms.Form): A form to display.
     '''
     pass
 
@@ -569,7 +568,6 @@ def invoice_access(request, access_code):
         user__attendee__access_code=access_code,
     ).order_by("-issue_time")
 
-
     if not invoices:
         raise Http404()
 
@@ -635,6 +633,7 @@ def _staff_only(user):
     ''' Returns true if the user is staff. '''
     return user.is_staff
 
+
 @user_passes_test(_staff_only)
 def manual_payment(request, invoice_id):
     ''' Allows staff to make manual payments or refunds on an invoice.
diff --git a/setup.cfg b/setup.cfg
index 257d3cd6..290fdb45 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,2 +1,2 @@
 [flake8]
-exclude = registrasion/migrations/*, build/*
+exclude = registrasion/migrations/*, build/*, docs/*