diff --git a/apps/activity/api/serializers.py b/apps/activity/api/serializers.py
index 46bd838..b3c7033 100644
--- a/apps/activity/api/serializers.py
+++ b/apps/activity/api/serializers.py
@@ -2,9 +2,10 @@
 # Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from ..models import ActivityType, Activity, Guest
 from rest_framework import serializers
 
+from ..models import ActivityType, Activity, Guest
+
 
 class ActivityTypeSerializer(serializers.ModelSerializer):
     """
diff --git a/apps/api/urls.py b/apps/api/urls.py
index 475120f..4ff23e5 100644
--- a/apps/api/urls.py
+++ b/apps/api/urls.py
@@ -5,8 +5,6 @@
 from django.conf.urls import url, include
 from django.contrib.auth.models import User
 from rest_framework import routers, serializers, viewsets
-from rest_framework.authtoken import views as token_views
-
 from activity.api.urls import register_activity_urls
 from member.api.urls import register_members_urls
 from note.api.urls import register_note_urls
diff --git a/apps/member/api/serializers.py b/apps/member/api/serializers.py
index cf4420d..126d69b 100644
--- a/apps/member/api/serializers.py
+++ b/apps/member/api/serializers.py
@@ -2,9 +2,10 @@
 # Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from ..models import Profile, Club, Role, Membership
 from rest_framework import serializers
 
+from ..models import Profile, Club, Role, Membership
+
 
 class ProfileSerializer(serializers.ModelSerializer):
     """
diff --git a/apps/member/filters.py b/apps/member/filters.py
index 76e0d52..ab63795 100644
--- a/apps/member/filters.py
+++ b/apps/member/filters.py
@@ -2,14 +2,12 @@
 # Copyright (C) 2018-2019 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from django_filters import FilterSet, CharFilter, NumberFilter
+from django_filters import FilterSet, CharFilter
 from django.contrib.auth.models import User
 from django.db.models import CharField
 from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Layout, Submit
 
-from .models import Club
-
 
 class UserFilter(FilterSet):
     class Meta:
diff --git a/apps/member/forms.py b/apps/member/forms.py
index ef32e9b..3ea2376 100644
--- a/apps/member/forms.py
+++ b/apps/member/forms.py
@@ -2,17 +2,14 @@
 # Copyright (C) 2018-2019 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 from dal import autocomplete
-from django.contrib.auth.forms import UserChangeForm, UserCreationForm
+from django.contrib.auth.forms import UserCreationForm
 from django.contrib.auth.models import User
 from django import forms
 
 from .models import Profile, Club, Membership
 
-from django.utils.translation import gettext_lazy as _
-
 from crispy_forms.helper import FormHelper
-from crispy_forms import layout, bootstrap
-from crispy_forms.bootstrap import InlineField, FormActions, StrictButton, Div, Field
+from crispy_forms.bootstrap import Div
 from crispy_forms.layout import Layout
 
 
diff --git a/apps/member/models.py b/apps/member/models.py
index ae5d90d..1009fe1 100644
--- a/apps/member/models.py
+++ b/apps/member/models.py
@@ -4,8 +4,6 @@
 
 from django.conf import settings
 from django.db import models
-from django.db.models.signals import post_save
-from django.dispatch import receiver
 from django.utils.translation import gettext_lazy as _
 from django.urls import reverse, reverse_lazy
 
diff --git a/apps/member/tables.py b/apps/member/tables.py
index 8ae1047..e641735 100644
--- a/apps/member/tables.py
+++ b/apps/member/tables.py
@@ -1,10 +1,10 @@
 #!/usr/bin/env python
 
 import django_tables2 as tables
-from .models import Club
-from django.conf import settings
 from django.contrib.auth.models import User
 
+from .models import Club
+
 
 class ClubTable(tables.Table):
     class Meta:
diff --git a/apps/member/urls.py b/apps/member/urls.py
index d4e3e6a..d21c2a6 100644
--- a/apps/member/urls.py
+++ b/apps/member/urls.py
@@ -10,16 +10,16 @@ from . import views
 
 app_name = 'member'
 urlpatterns = [
-    path('signup/',views.UserCreateView.as_view(),name="signup"),
-    path('club/',views.ClubListView.as_view(),name="club_list"),
-    path('club/<int:pk>/',views.ClubDetailView.as_view(),name="club_detail"),
-    path('club/<int:pk>/add_member/',views.ClubAddMemberView.as_view(),name="club_add_member"),
-    path('club/create/',views.ClubCreateView.as_view(),name="club_create"),
-    path('user/',views.UserListView.as_view(),name="user_list"),
-    path('user/<int:pk>',views.UserDetailView.as_view(),name="user_detail"),
-    path('user/<int:pk>/update',views.UserUpdateView.as_view(),name="user_update_profile"),
+    path('signup/', views.UserCreateView.as_view(), name="signup"),
+    path('club/', views.ClubListView.as_view(), name="club_list"),
+    path('club/<int:pk>/', views.ClubDetailView.as_view(), name="club_detail"),
+    path('club/<int:pk>/add_member/', views.ClubAddMemberView.as_view(), name="club_add_member"),
+    path('club/create/', views.ClubCreateView.as_view(), name="club_create"),
+    path('user/', views.UserListView.as_view(), name="user_list"),
+    path('user/<int:pk>', views.UserDetailView.as_view(), name="user_detail"),
+    path('user/<int:pk>/update', views.UserUpdateView.as_view(), name="user_update_profile"),
     path('manage-auth-token/', views.ManageAuthTokens.as_view(), name='auth_token'),
 
     # API for the user autocompleter
-    path('user/user-autocomplete',views.UserAutocomplete.as_view(),name="user_autocomplete"),
+    path('user/user-autocomplete', views.UserAutocomplete.as_view(), name="user_autocomplete"),
 ]
diff --git a/apps/member/views.py b/apps/member/views.py
index 86ce3b1..020b984 100644
--- a/apps/member/views.py
+++ b/apps/member/views.py
@@ -6,23 +6,21 @@ from dal import autocomplete
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.shortcuts import redirect
 from django.utils.translation import gettext_lazy as _
-from django.views.generic import CreateView, ListView, DetailView, UpdateView, RedirectView, TemplateView
+from django.views.generic import CreateView, DetailView, UpdateView, TemplateView
 from django.contrib.auth.models import User
 from django.urls import reverse_lazy
 from django.db.models import Q
-
 from django_tables2.views import SingleTableView
 from rest_framework.authtoken.models import Token
+from note.models import Alias, NoteUser
+from note.models.transactions import Transaction
+from note.tables import HistoryTable
 
-from note.models import Alias, Note, NoteUser
 from .models import Profile, Club, Membership
 from .forms import SignUpForm, ProfileForm, ClubForm, MembershipForm, MemberFormSet, FormSetHelper
 from .tables import ClubTable, UserTable
 from .filters import UserFilter, UserFilterFormHelper
 
-from note.models.transactions import Transaction
-from note.tables import HistoryTable
-
 
 class UserCreateView(CreateView):
     """
@@ -197,9 +195,9 @@ class UserAutocomplete(autocomplete.Select2QuerySetView):
         return qs
 
 
-###################################
-############## CLUB ###############
-###################################
+# ******************************* #
+#              CLUB               #
+# ******************************* #
 
 
 class ClubCreateView(LoginRequiredMixin, CreateView):
diff --git a/apps/note/api/serializers.py b/apps/note/api/serializers.py
index 90c802a..a0b9272 100644
--- a/apps/note/api/serializers.py
+++ b/apps/note/api/serializers.py
@@ -2,11 +2,12 @@
 # Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from ..models.notes import Note, NoteClub, NoteSpecial, NoteUser, Alias
-from ..models.transactions import TransactionTemplate, Transaction, MembershipTransaction
 from rest_framework import serializers
 from rest_polymorphic.serializers import PolymorphicSerializer
 
+from ..models.notes import Note, NoteClub, NoteSpecial, NoteUser, Alias
+from ..models.transactions import TransactionTemplate, Transaction, MembershipTransaction
+
 
 class NoteSerializer(serializers.ModelSerializer):
     """
diff --git a/apps/note/api/views.py b/apps/note/api/views.py
index a63cf10..1d01512 100644
--- a/apps/note/api/views.py
+++ b/apps/note/api/views.py
@@ -75,12 +75,12 @@ class NotePolymorphicViewSet(viewsets.ModelViewSet):
 
         note_type = self.request.query_params.get("type", None)
         if note_type:
-            l = str(note_type).lower()
-            if "user" in l:
+            types = str(note_type).lower()
+            if "user" in types:
                 queryset = queryset.filter(polymorphic_ctype__model="noteuser")
-            elif "club" in l:
+            elif "club" in types:
                 queryset = queryset.filter(polymorphic_ctype__model="noteclub")
-            elif "special" in l:
+            elif "special" in types:
                 queryset = queryset.filter(
                     polymorphic_ctype__model="notespecial")
             else:
@@ -116,14 +116,14 @@ class AliasViewSet(viewsets.ModelViewSet):
 
         note_type = self.request.query_params.get("type", None)
         if note_type:
-            l = str(note_type).lower()
-            if "user" in l:
+            types = str(note_type).lower()
+            if "user" in types:
                 queryset = queryset.filter(
                     note__polymorphic_ctype__model="noteuser")
-            elif "club" in l:
+            elif "club" in types:
                 queryset = queryset.filter(
                     note__polymorphic_ctype__model="noteclub")
-            elif "special" in l:
+            elif "special" in types:
                 queryset = queryset.filter(
                     note__polymorphic_ctype__model="notespecial")
             else:
diff --git a/apps/note/forms.py b/apps/note/forms.py
index 8f67045..225afb9 100644
--- a/apps/note/forms.py
+++ b/apps/note/forms.py
@@ -1,7 +1,8 @@
 #!/usr/bin/env python
 
-from dal import autocomplete, forward
+from dal import autocomplete
 from django import forms
+
 from .models import Transaction, TransactionTemplate
 
 
diff --git a/apps/note/models/transactions.py b/apps/note/models/transactions.py
index 5c24225..95940b6 100644
--- a/apps/note/models/transactions.py
+++ b/apps/note/models/transactions.py
@@ -7,12 +7,13 @@ from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
 from django.urls import reverse
 
-from .notes import Note,NoteClub
+from .notes import Note, NoteClub
 
 """
 Defines transactions
 """
 
+
 class TransactionCategory(models.Model):
     """
     Defined a recurrent transaction category
@@ -32,6 +33,7 @@ class TransactionCategory(models.Model):
     def __str__(self):
         return str(self.name)
 
+
 class TransactionTemplate(models.Model):
     """
     Defined a recurrent transaction
@@ -57,7 +59,7 @@ class TransactionTemplate(models.Model):
         TransactionCategory,
         on_delete=models.PROTECT,
         verbose_name=_('type'),
-        max_length=31
+        max_length=31,
     )
 
     class Meta:
@@ -65,7 +67,7 @@ class TransactionTemplate(models.Model):
         verbose_name_plural = _("transaction templates")
 
     def get_absolute_url(self):
-        return reverse('note:template_update',args=(self.pk,))
+        return reverse('note:template_update', args=(self.pk, ))
 
 
 class Transaction(models.Model):
@@ -98,9 +100,7 @@ class Transaction(models.Model):
         verbose_name=_('quantity'),
         default=1,
     )
-    amount = models.PositiveIntegerField(
-        verbose_name=_('amount'),
-    )
+    amount = models.PositiveIntegerField(verbose_name=_('amount'), )
     transaction_type = models.CharField(
         verbose_name=_('type'),
         max_length=31,
@@ -142,7 +142,7 @@ class Transaction(models.Model):
 
     @property
     def total(self):
-        return self.amount*self.quantity
+        return self.amount * self.quantity
 
 
 class MembershipTransaction(Transaction):
diff --git a/apps/note/tables.py b/apps/note/tables.py
index f13b502..4a52dd1 100644
--- a/apps/note/tables.py
+++ b/apps/note/tables.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 import django_tables2 as tables
 from django.db.models import F
 
@@ -15,11 +14,10 @@ class HistoryTable(tables.Table):
         template_name = 'django_tables2/bootstrap.html'
         sequence = ('...', 'total', 'valid')
 
-    total = tables.Column()  #will use Transaction.total() !!
+    total = tables.Column()  # will use Transaction.total() !!
 
-    def order_total(self, QuerySet, is_descending):
+    def order_total(self, queryset, is_descending):
         # needed for rendering
-        QuerySet = QuerySet.annotate(
-            total=F('amount') *
-            F('quantity')).order_by(('-' if is_descending else '') + 'total')
-        return (QuerySet, True)
+        queryset = queryset.annotate(total=F('amount') * F('quantity')) \
+            .order_by(('-' if is_descending else '') + 'total')
+        return (queryset, True)
diff --git a/apps/note/urls.py b/apps/note/urls.py
index 7c19c42..6567cb9 100644
--- a/apps/note/urls.py
+++ b/apps/note/urls.py
@@ -10,12 +10,12 @@ from .models import Note
 app_name = 'note'
 urlpatterns = [
     path('transfer/', views.TransactionCreate.as_view(), name='transfer'),
-    path('buttons/create/',views.TransactionTemplateCreateView.as_view(),name='template_create'),
-    path('buttons/update/<int:pk>/',views.TransactionTemplateUpdateView.as_view(),name='template_update'),
-    path('buttons/',views.TransactionTemplateListView.as_view(),name='template_list'),
-    path('consos/<str:template_type>/',views.ConsoView.as_view(),name='consos'),
-    path('consos/',views.ConsoView.as_view(),name='consos'),
+    path('buttons/create/', views.TransactionTemplateCreateView.as_view(), name='template_create'),
+    path('buttons/update/<int:pk>/', views.TransactionTemplateUpdateView.as_view(), name='template_update'),
+    path('buttons/', views.TransactionTemplateListView.as_view(), name='template_list'),
+    path('consos/<str:template_type>/', views.ConsoView.as_view(), name='consos'),
+    path('consos/', views.ConsoView.as_view(), name='consos'),
 
     # API for the note autocompleter
-    path('note-autocomplete/', views.NoteAutocomplete.as_view(model=Note),name='note_autocomplete'),
+    path('note-autocomplete/', views.NoteAutocomplete.as_view(model=Note), name='note_autocomplete'),
 ]
diff --git a/apps/note/views.py b/apps/note/views.py
index d4590e5..e777668 100644
--- a/apps/note/views.py
+++ b/apps/note/views.py
@@ -5,11 +5,11 @@
 from dal import autocomplete
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.db.models import Q
-from django.urls import reverse_lazy, reverse
+from django.urls import reverse
 from django.utils.translation import gettext_lazy as _
-from django.views.generic import CreateView, ListView, DetailView, UpdateView
+from django.views.generic import CreateView, ListView, UpdateView
 
-from .models import Note, Transaction, TransactionCategory, TransactionTemplate, Alias
+from .models import Transaction, TransactionCategory, TransactionTemplate, Alias
 from .forms import TransactionForm, TransactionTemplateForm, ConsoForm
 
 
@@ -75,12 +75,12 @@ class NoteAutocomplete(autocomplete.Select2QuerySetView):
         # Filtrage par type de note (user, club, special)
         note_type = self.forwarded.get("note_type", None)
         if note_type:
-            l = str(note_type).lower()
-            if "user" in l:
+            types = str(note_type).lower()
+            if "user" in types:
                 qs = qs.filter(note__polymorphic_ctype__model="noteuser")
-            elif "club" in l:
+            elif "club" in types:
                 qs = qs.filter(note__polymorphic_ctype__model="noteclub")
-            elif "special" in l:
+            elif "special" in types:
                 qs = qs.filter(note__polymorphic_ctype__model="notespecial")
             else:
                 qs = qs.none()