diff --git a/apps/member/views.py b/apps/member/views.py
index 2bc2133c..066a7ef3 100644
--- a/apps/member/views.py
+++ b/apps/member/views.py
@@ -8,7 +8,6 @@ from django.contrib.auth import logout
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.contrib.auth.models import User
 from django.contrib.auth.views import LoginView
-from django.contrib.contenttypes.models import ContentType
 from django.db import transaction
 from django.db.models import Q, F
 from django.shortcuts import redirect
diff --git a/apps/note/tables.py b/apps/note/tables.py
index 0a0fd4ed..11d8ba78 100644
--- a/apps/note/tables.py
+++ b/apps/note/tables.py
@@ -172,6 +172,7 @@ class TrustTable(tables.Table):
                    else '')}},
         verbose_name=_("Delete"),)
 
+
 class TrustedTable(tables.Table):
     class Meta:
         attrs = {
@@ -184,7 +185,7 @@ class TrustedTable(tables.Table):
 
     show_header = False
     trusting = tables.Column(attrs={
-        'td': {'class': 'text-center', 'width':'100%'}})
+        'td': {'class': 'text-center', 'width': '100%'}})
 
     trust_back = tables.Column(
         verbose_name=_("Trust back"),
@@ -200,7 +201,7 @@ class TrustedTable(tables.Table):
     def render_trust_back(self, record):
         user_note = record.trusted
         trusting_note = record.trusting
-        if Trust.objects.filter(trusted=trusting_note, trusting=user_note) :
+        if Trust.objects.filter(trusted=trusting_note, trusting=user_note):
             return ""
         val = '<button id="'
         val += str(record.pk)
diff --git a/apps/treasury/models.py b/apps/treasury/models.py
index fc20da3b..e788e479 100644
--- a/apps/treasury/models.py
+++ b/apps/treasury/models.py
@@ -338,11 +338,11 @@ class SogeCredit(models.Model):
 #                if m.transaction not in self.transactions.all():
 #                    self.transactions.add(m.transaction)
 #
-#        if kfet_qs.exists():
-#            m = kfet_qs.get()
-#            if MembershipTransaction.objects.filter(membership=m).exists():  # non-free membership
-#                if m.transaction not in self.transactions.all():
-#                    self.transactions.add(m.transaction)
+#         if kfet_qs.exists():
+#             m = kfet_qs.get()
+#             if MembershipTransaction.objects.filter(membership=m).exists():  # non-free membership
+#                 if m.transaction not in self.transactions.all():
+#                     self.transactions.add(m.transaction)
 
         if 'wei' in settings.INSTALLED_APPS:
             from wei.models import WEIClub