diff --git a/la_chariotte/asgi.py b/la_chariotte/asgi.py
index cbce385..5baa79f 100644
--- a/la_chariotte/asgi.py
+++ b/la_chariotte/asgi.py
@@ -11,6 +11,6 @@ import os
 
 from django.core.asgi import get_asgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'la_chariotte.settings')
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "la_chariotte.settings")
 
 application = get_asgi_application()
diff --git a/la_chariotte/order/apps.py b/la_chariotte/order/apps.py
index 4cd66cc..337993a 100644
--- a/la_chariotte/order/apps.py
+++ b/la_chariotte/order/apps.py
@@ -2,5 +2,5 @@ from django.apps import AppConfig
 
 
 class OrderConfig(AppConfig):
-    default_auto_field = 'django.db.models.BigAutoField'
-    name = 'la_chariotte.order'
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "la_chariotte.order"
diff --git a/la_chariotte/order/models.py b/la_chariotte/order/models.py
index ef55d2e..4088d2f 100644
--- a/la_chariotte/order/models.py
+++ b/la_chariotte/order/models.py
@@ -4,37 +4,56 @@ from django.db import models
 
 from django.utils import timezone
 
+
 class Grouped_order(models.Model):
     name = models.CharField(max_length=100, null=True)  # optionnal
-    orga = models.CharField(max_length=100) # a changer, utiliser ForeignKey de user
-    delivery_date = models.DateField('Date de livraison')
-    deadline = models.DateTimeField('Date limite de commande')
+    orga = models.CharField(max_length=100)  # a changer, utiliser ForeignKey de user
+    delivery_date = models.DateField("Date de livraison")
+    deadline = models.DateTimeField("Date limite de commande")
 
     def is_ongoing(self):
         """Returns True if the grouped order is open for new Orders - False if it's too late"""
         return self.deadline >= timezone.now()
 
     def __str__(self):
-        return self.name if self.name else f"Commande groupée {self.pk} du {self.date} organisée par {self.orga}"
+        return (
+            self.name
+            if self.name
+            else f"Commande groupée {self.pk} du {self.date} organisée par {self.orga}"
+        )
+
 
 class Order(models.Model):
-    grouped_order = models.ForeignKey(Grouped_order, on_delete=models.CASCADE,related_name="order_set")
-    author = models.CharField(max_length=100, verbose_name='Personne qui passe la commande') # a changer, utiliser ForeignKey de user
+    grouped_order = models.ForeignKey(
+        Grouped_order, on_delete=models.CASCADE, related_name="order_set"
+    )
+    author = models.CharField(
+        max_length=100, verbose_name="Personne qui passe la commande"
+    )  # a changer, utiliser ForeignKey de user
+
     def __str__(self):
         return f"Commande de {self.author} pour la commande groupée {self.grouped_order.pk}"
 
+
 class Item(models.Model):
     name = models.CharField(max_length=100)
-    grouped_order = models.ForeignKey(Grouped_order, on_delete=models.CASCADE)      # à transformer en manytomany quand il y aura un catalogue
+    grouped_order = models.ForeignKey(
+        Grouped_order, on_delete=models.CASCADE
+    )  # à transformer en manytomany quand il y aura un catalogue
     ordered_nb = models.IntegerField(default=0)
 
     def __str__(self):
         return f"{self.name} dans la commande groupée {self.grouped_order.pk}"
 
+
 class OrderedItem(models.Model):
     """Item in one specific Order, and its number"""
-    nb = models.PositiveSmallIntegerField(default=0) # works up to 32767
-    order = models.ForeignKey(Order, on_delete=models.CASCADE, related_name="ordered_items")
+
+    nb = models.PositiveSmallIntegerField(default=0)  # works up to 32767
+    order = models.ForeignKey(
+        Order, on_delete=models.CASCADE, related_name="ordered_items"
+    )
     item = models.ForeignKey(Item, on_delete=models.CASCADE, related_name="orders")
+
     def __str__(self):
         return f"{self.nb} {self.item}, dans la commande {self.order.pk}"
diff --git a/la_chariotte/order/tests/test_models.py b/la_chariotte/order/tests/test_models.py
index 2977c49..b36d2e3 100644
--- a/la_chariotte/order/tests/test_models.py
+++ b/la_chariotte/order/tests/test_models.py
@@ -4,9 +4,9 @@ from django.utils import timezone
 from la_chariotte.order.models import Grouped_order
 
 
-
-class TestGroupedOrdersModel():
+class TestGroupedOrdersModel:
     """Tests for Grouped orders model"""
+
     def test_is_ongoing_with_ongoing_grouped_order(self):
         """
         is_ongoing() returns True if the deadline is not crossed
@@ -21,4 +21,4 @@ class TestGroupedOrdersModel():
         """
         deadline = timezone.now() - datetime.timedelta(hours=1)
         ongoing_gr_order = Grouped_order(deadline=deadline)
-        assert not ongoing_gr_order.is_ongoing()
\ No newline at end of file
+        assert not ongoing_gr_order.is_ongoing()
diff --git a/la_chariotte/order/tests/test_views.py b/la_chariotte/order/tests/test_views.py
index 1074ae3..b3d9364 100644
--- a/la_chariotte/order/tests/test_views.py
+++ b/la_chariotte/order/tests/test_views.py
@@ -8,74 +8,125 @@ from la_chariotte.order.models import Grouped_order
 
 pytestmark = pytest.mark.django_db
 
-def create_grouped_order(days_before_delivery_date,days_before_deadline,name):
+
+def create_grouped_order(days_before_delivery_date, days_before_deadline, name):
     """
     Creates a grouped order.
     """
     date = timezone.now().date() + datetime.timedelta(days=days_before_delivery_date)
     deadline = timezone.now() + datetime.timedelta(days=days_before_deadline)
-    return Grouped_order.objects.create(name=name, orga="test orga",delivery_date=date,deadline=deadline)
+    return Grouped_order.objects.create(
+        name=name, orga="test orga", delivery_date=date, deadline=deadline
+    )
+
 
 class TestGroupedOrderIndexView:
-    def test_no_grouped_orders(self,client):
+    def test_no_grouped_orders(self, client):
         """
         If no grouped order exist, an appropriate message is displayed
         """
-        response = client.get(reverse('order:index'))
+        response = client.get(reverse("order:index"))
         assert response.status_code == 200
         assert "Pas de commande groupée pour l'instant" in response.content.decode()
-        assert len(response.context['grouped_order_list']['old_grouped_orders']) == 0
-        assert len(response.context['grouped_order_list']['orders_over_grouped_orders']) == 0
-        assert len(response.context['grouped_order_list']['incoming_grouped_orders']) == 0
+        assert len(response.context["grouped_order_list"]["old_grouped_orders"]) == 0
+        assert (
+            len(response.context["grouped_order_list"]["orders_over_grouped_orders"])
+            == 0
+        )
+        assert (
+            len(response.context["grouped_order_list"]["incoming_grouped_orders"]) == 0
+        )
 
-    def test_grouped_orders_in_right_section(self,client):
+    def test_grouped_orders_in_right_section(self, client):
         """
         According to their delivery date and deadline, grouped orders are placed in the correct section : several gr orders
         """
-        future_grouped_order = create_grouped_order(days_before_delivery_date=5,days_before_deadline=2,name="future")
-        crossed_deadline_gr_order = create_grouped_order(days_before_delivery_date=2, days_before_deadline=-1,name="crossed deadline")
-        old_gr_order = create_grouped_order(days_before_delivery_date=-1, days_before_deadline=-3,name="old")
-        response = client.get(reverse('order:index'))
+        future_grouped_order = create_grouped_order(
+            days_before_delivery_date=5, days_before_deadline=2, name="future"
+        )
+        crossed_deadline_gr_order = create_grouped_order(
+            days_before_delivery_date=2,
+            days_before_deadline=-1,
+            name="crossed deadline",
+        )
+        old_gr_order = create_grouped_order(
+            days_before_delivery_date=-1, days_before_deadline=-3, name="old"
+        )
+        response = client.get(reverse("order:index"))
         assert response.status_code == 200
         assert "Pas de commande groupée pour l'instant" not in response.content.decode()
         assert "Commandes groupées à venir" in response.content.decode()
         assert "Livraison à venir" in response.content.decode()
         assert "Livraison passée" in response.content.decode()
-        assert len(response.context['grouped_order_list']['old_grouped_orders']) == 1
-        assert len(response.context['grouped_order_list']['orders_over_grouped_orders']) == 1
-        assert len(response.context['grouped_order_list']['incoming_grouped_orders']) == 1
-        assert response.context['grouped_order_list']['old_grouped_orders'][0] == old_gr_order
-        assert response.context['grouped_order_list']['orders_over_grouped_orders'][0] == crossed_deadline_gr_order
-        assert response.context['grouped_order_list']['incoming_grouped_orders'][0] == future_grouped_order
+        assert len(response.context["grouped_order_list"]["old_grouped_orders"]) == 1
+        assert (
+            len(response.context["grouped_order_list"]["orders_over_grouped_orders"])
+            == 1
+        )
+        assert (
+            len(response.context["grouped_order_list"]["incoming_grouped_orders"]) == 1
+        )
+        assert (
+            response.context["grouped_order_list"]["old_grouped_orders"][0]
+            == old_gr_order
+        )
+        assert (
+            response.context["grouped_order_list"]["orders_over_grouped_orders"][0]
+            == crossed_deadline_gr_order
+        )
+        assert (
+            response.context["grouped_order_list"]["incoming_grouped_orders"][0]
+            == future_grouped_order
+        )
 
-    def test_grouped_orders_in_right_section__with_only_old(self,client):
+    def test_grouped_orders_in_right_section__with_only_old(self, client):
         """
         According to their delivery date and deadline, grouped orders are placed in correct section : only old gr order
         """
-        old_gr_order = create_grouped_order(days_before_delivery_date=-1, days_before_deadline=-3,name="passée")
-        response = client.get(reverse('order:index'))
+        old_gr_order = create_grouped_order(
+            days_before_delivery_date=-1, days_before_deadline=-3, name="passée"
+        )
+        response = client.get(reverse("order:index"))
         assert response.status_code == 200
         assert "Pas de commande groupée pour l'instant" not in response.content.decode()
         assert "Commandes groupées à venir" not in response.content.decode()
         assert "Livraison à venir" not in response.content.decode()
         assert "Livraison passée" in response.content.decode()
-        assert len(response.context['grouped_order_list']['old_grouped_orders']) == 1
-        assert len(response.context['grouped_order_list']['orders_over_grouped_orders']) == 0
-        assert len(response.context['grouped_order_list']['incoming_grouped_orders']) == 0
-        assert response.context['grouped_order_list']['old_grouped_orders'][0] == old_gr_order
+        assert len(response.context["grouped_order_list"]["old_grouped_orders"]) == 1
+        assert (
+            len(response.context["grouped_order_list"]["orders_over_grouped_orders"])
+            == 0
+        )
+        assert (
+            len(response.context["grouped_order_list"]["incoming_grouped_orders"]) == 0
+        )
+        assert (
+            response.context["grouped_order_list"]["old_grouped_orders"][0]
+            == old_gr_order
+        )
 
-    def test_grouped_orders_in_right_section__with_only_future(self,client):
+    def test_grouped_orders_in_right_section__with_only_future(self, client):
         """
         According to their delivery date and deadline, grouped orders are placed in correct section : only incoming gr order
         """
-        future_grouped_order = create_grouped_order(days_before_delivery_date=5,days_before_deadline=2,name="future")
-        response = client.get(reverse('order:index'))
+        future_grouped_order = create_grouped_order(
+            days_before_delivery_date=5, days_before_deadline=2, name="future"
+        )
+        response = client.get(reverse("order:index"))
         assert response.status_code == 200
         assert "Pas de commande groupée pour l'instant" not in response.content.decode()
         assert "Commandes groupées à venir" in response.content.decode()
         assert "Livraison à venir" not in response.content.decode()
         assert "Livraison passée" not in response.content.decode()
-        assert len(response.context['grouped_order_list']['old_grouped_orders']) == 0
-        assert len(response.context['grouped_order_list']['orders_over_grouped_orders']) == 0
-        assert len(response.context['grouped_order_list']['incoming_grouped_orders']) == 1
-        assert response.context['grouped_order_list']['incoming_grouped_orders'][0] == future_grouped_order
\ No newline at end of file
+        assert len(response.context["grouped_order_list"]["old_grouped_orders"]) == 0
+        assert (
+            len(response.context["grouped_order_list"]["orders_over_grouped_orders"])
+            == 0
+        )
+        assert (
+            len(response.context["grouped_order_list"]["incoming_grouped_orders"]) == 1
+        )
+        assert (
+            response.context["grouped_order_list"]["incoming_grouped_orders"][0]
+            == future_grouped_order
+        )
diff --git a/la_chariotte/order/urls.py b/la_chariotte/order/urls.py
index 74c6383..a769aa3 100644
--- a/la_chariotte/order/urls.py
+++ b/la_chariotte/order/urls.py
@@ -2,10 +2,14 @@ from django.urls import path
 
 from . import views
 
-app_name = 'order'
+app_name = "order"
 urlpatterns = [
-    path('', views.IndexView.as_view(), name='index'),
-    path('<int:pk>/', views.GroupedOrderDetailView.as_view(), name='grouped_order_detail'),
-    path('<int:pk>/orga', views.GroupedOrderOrgaView.as_view(), name='grouped_order_orga'),
-    path('<int:grouped_order_id>/commander/', views.order, name='order'),
-]
\ No newline at end of file
+    path("", views.IndexView.as_view(), name="index"),
+    path(
+        "<int:pk>/", views.GroupedOrderDetailView.as_view(), name="grouped_order_detail"
+    ),
+    path(
+        "<int:pk>/orga", views.GroupedOrderOrgaView.as_view(), name="grouped_order_orga"
+    ),
+    path("<int:grouped_order_id>/commander/", views.order, name="order"),
+]
diff --git a/la_chariotte/order/views.py b/la_chariotte/order/views.py
index 72ce0ec..8a969c0 100644
--- a/la_chariotte/order/views.py
+++ b/la_chariotte/order/views.py
@@ -9,49 +9,77 @@ from .models import Grouped_order, Item, Order, OrderedItem
 
 class IndexView(generic.ListView):
     """Vue de toutes les commandes groupées existantes - plus tard, de toutes les commandes groupées de l'utilisateur connecté"""
-    template_name = 'order/index.html'
-    context_object_name = 'grouped_order_list'
+
+    template_name = "order/index.html"
+    context_object_name = "grouped_order_list"
 
     def get_queryset(self):
         """Return the 5 most recent old grouped orders"""
-        old_grouped_orders = Grouped_order.objects.filter(delivery_date__lt=timezone.now().date()).order_by("-delivery_date")[:5]        # delivery date < today (delivered)
+        old_grouped_orders = Grouped_order.objects.filter(
+            delivery_date__lt=timezone.now().date()
+        ).order_by("-delivery_date")[
+            :5
+        ]  # delivery date < today (delivered)
         """Return all grouped orders, for which we cannot order anymore but the delivery date is still to come"""
-        orders_over_grouped_orders = Grouped_order.objects.filter(delivery_date__gte=timezone.now().date()).filter(deadline__lt=timezone.now()).order_by("-delivery_date")   # delivery date >= today (not delivered) and deadline < today (we cannot order)
+        orders_over_grouped_orders = (
+            Grouped_order.objects.filter(delivery_date__gte=timezone.now().date())
+            .filter(deadline__lt=timezone.now())
+            .order_by("-delivery_date")
+        )  # delivery date >= today (not delivered) and deadline < today (we cannot order)
         """Return all incoming grouped orders"""
-        incoming_grouped_orders = Grouped_order.objects.filter(deadline__gte=timezone.now()).order_by("deadline")       # dealine >= today (we can still order)
-        return {'old_grouped_orders': old_grouped_orders,'orders_over_grouped_orders': orders_over_grouped_orders,'incoming_grouped_orders': incoming_grouped_orders}
+        incoming_grouped_orders = Grouped_order.objects.filter(
+            deadline__gte=timezone.now()
+        ).order_by(
+            "deadline"
+        )  # dealine >= today (we can still order)
+        return {
+            "old_grouped_orders": old_grouped_orders,
+            "orders_over_grouped_orders": orders_over_grouped_orders,
+            "incoming_grouped_orders": incoming_grouped_orders,
+        }
 
 
 class GroupedOrderDetailView(generic.DetailView):
     """Vue de détail d'une commande groupée - possibilité de commander si elle est en cours"""
+
     model = Grouped_order
-    template_name = 'order/grouped_order_detail.html'
+    template_name = "order/grouped_order_detail.html"
 
 
 class GroupedOrderOrgaView(generic.DetailView):
     """Vue de supervision d'une commande groupée"""
+
     model = Grouped_order
-    template_name = 'order/grouped_order_orga.html'
+    template_name = "order/grouped_order_orga.html"
 
 
-def order(request, grouped_order_id):   # crée une commande (order) pour cette commande groupée, avec l'item selectionné dedans
+def order(
+    request, grouped_order_id
+):  # crée une commande (order) pour cette commande groupée, avec l'item selectionné dedans
     grouped_order = get_object_or_404(Grouped_order, pk=grouped_order_id)
     try:
-        selected_item = grouped_order.item_set.get(pk=request.POST['item'])
+        selected_item = grouped_order.item_set.get(pk=request.POST["item"])
     except (KeyError, Item.DoesNotExist):
         # Redisplay the order form for this grouped order.
-        return render(request, 'order/grouped_order_detail.html', {
-            'grouped_order': grouped_order,
-            'error_message': "You didn't select an item.",
-        })
+        return render(
+            request,
+            "order/grouped_order_detail.html",
+            {
+                "grouped_order": grouped_order,
+                "error_message": "You didn't select an item.",
+            },
+        )
     else:
-        order = Order.objects.create(author="Auteur teur",grouped_order=grouped_order)
-        OrderedItem.objects.create(nb=1,order=order,item=selected_item)
+        order = Order.objects.create(author="Auteur teur", grouped_order=grouped_order)
+        OrderedItem.objects.create(nb=1, order=order, item=selected_item)
         compute_ordered_nb(selected_item)
         # Always return an HttpResponseRedirect after successfully dealing
         # with POST data. This prevents data from being posted twice if a
         # user hits the Back button.
-        return HttpResponseRedirect(reverse('order:grouped_order_orga', args=(grouped_order.pk,)))
+        return HttpResponseRedirect(
+            reverse("order:grouped_order_orga", args=(grouped_order.pk,))
+        )
+
 
 def compute_ordered_nb(item):
     """Calcule le nombre de produits de ce produit commandés (pour cette commande groupée)"""
diff --git a/la_chariotte/settings.py b/la_chariotte/settings.py
index fe657cb..9de6adb 100644
--- a/la_chariotte/settings.py
+++ b/la_chariotte/settings.py
@@ -20,7 +20,7 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 # See https://docs.djangoproject.com/en/4.1/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = 'django-insecure-f66vu+dj79c(5u(w2i0indkrlf$qtt!b$dmotnm%5!0a*9+=my'
+SECRET_KEY = "django-insecure-f66vu+dj79c(5u(w2i0indkrlf$qtt!b$dmotnm%5!0a*9+=my"
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
@@ -31,57 +31,57 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
-    'la_chariotte.order',
-    'django.contrib.admin',
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
+    "la_chariotte.order",
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
 ]
 
 MIDDLEWARE = [
-    'django.middleware.security.SecurityMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
 ]
 
-ROOT_URLCONF = 'la_chariotte.urls'
+ROOT_URLCONF = "la_chariotte.urls"
 
 TEMPLATES = [
     {
-        'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [],
-        'APP_DIRS': True,
-        'OPTIONS': {
-            'context_processors': [
-                'django.template.context_processors.debug',
-                'django.template.context_processors.request',
-                'django.contrib.auth.context_processors.auth',
-                'django.contrib.messages.context_processors.messages',
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
             ],
         },
     },
 ]
 
-WSGI_APPLICATION = 'la_chariotte.wsgi.application'
+WSGI_APPLICATION = "la_chariotte.wsgi.application"
 
 
 # Database
 # https://docs.djangoproject.com/en/4.1/ref/settings/#databases
 
 DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.postgresql',
-        'NAME': 'chariotte-db',
-        'USER': 'laetitia',
-        'PASSWORD': 'toto',
-        'HOST': '127.0.0.1',
-        'PORT': '5432',
+    "default": {
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": "chariotte-db",
+        "USER": "laetitia",
+        "PASSWORD": "toto",
+        "HOST": "127.0.0.1",
+        "PORT": "5432",
     }
 }
 
@@ -91,16 +91,16 @@ DATABASES = {
 
 AUTH_PASSWORD_VALIDATORS = [
     {
-        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
     },
 ]
 
@@ -108,9 +108,9 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/4.1/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = 'Europe/Paris'
+TIME_ZONE = "Europe/Paris"
 
 USE_I18N = True
 
@@ -120,9 +120,9 @@ USE_TZ = True
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/4.1/howto/static-files/
 
-STATIC_URL = 'static/'
+STATIC_URL = "static/"
 
 # Default primary key field type
 # https://docs.djangoproject.com/en/4.1/ref/settings/#default-auto-field
 
-DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
diff --git a/la_chariotte/urls.py b/la_chariotte/urls.py
index ebc0a7d..6bea7b4 100644
--- a/la_chariotte/urls.py
+++ b/la_chariotte/urls.py
@@ -14,9 +14,9 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path,include
+from django.urls import path, include
 
 urlpatterns = [
-    path('admin/', admin.site.urls),
-    path('commande/', include('la_chariotte.order.urls')),
+    path("admin/", admin.site.urls),
+    path("commande/", include("la_chariotte.order.urls")),
 ]
diff --git a/la_chariotte/wsgi.py b/la_chariotte/wsgi.py
index e4e5d8a..0e3a6e0 100644
--- a/la_chariotte/wsgi.py
+++ b/la_chariotte/wsgi.py
@@ -11,6 +11,6 @@ import os
 
 from django.core.wsgi import get_wsgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'la_chariotte.settings')
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "la_chariotte.settings")
 
 application = get_wsgi_application()
diff --git a/manage.py b/manage.py
index 0f7ee05..23c217b 100755
--- a/manage.py
+++ b/manage.py
@@ -6,7 +6,7 @@ import sys
 
 def main():
     """Run administrative tasks."""
-    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'la_chariotte.settings')
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "la_chariotte.settings")
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:
@@ -18,5 +18,5 @@ def main():
     execute_from_command_line(sys.argv)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/pyproject.toml b/pyproject.toml
index d9b0533..b165014 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,4 +3,16 @@ name = "la chariotte"
 version = "0.0.1"
 description = "Web application for organising grouped orders"
 readme = "readMe.md"
-license = {file = "LICENSE"}
\ No newline at end of file
+license = {file = "LICENSE"}
+
+[tool.black]
+line-length = 88
+exclude = '''
+
+(
+  /(
+    | migrations
+    | static
+  )/
+)
+'''
diff --git a/readMe.md b/readMe.md
index 910b1a4..574c3ec 100644
--- a/readMe.md
+++ b/readMe.md
@@ -9,3 +9,9 @@ Avec pytest,
 ```bash
 pytest
 ```
+
+Formater les fichiers avec black : 
+
+```bash
+black .
+```