diff --git a/calendrier/admin.py b/calendrier/admin.py
index 616027a..b2aebb3 100644
--- a/calendrier/admin.py
+++ b/calendrier/admin.py
@@ -2,10 +2,22 @@ from django.contrib import admin
 
 from .models import Event, Participants
 
+
 class ParticipantsAdmin(admin.ModelAdmin):
-    fields = ["event", "participant", "reponse", "instrument", "instrument_autre", "dont_play_main", "details", "creationDate", "updateDate" ]
-    readonly_fields = [ "creationDate", "updateDate" ]
-    list_display = ["participant", "event", "reponse", "creationDate", "updateDate" ]
+    fields = [
+        "event",
+        "participant",
+        "reponse",
+        "instrument",
+        "instrument_autre",
+        "dont_play_main",
+        "details",
+        "creationDate",
+        "updateDate",
+    ]
+    readonly_fields = ["creationDate", "updateDate"]
+    list_display = ["participant", "event", "reponse", "creationDate", "updateDate"]
+
 
 # Add event by admin page return a 502 error
 admin.site.register(Event)
diff --git a/calendrier/forms.py b/calendrier/forms.py
index 38aaf76..56a9d2b 100644
--- a/calendrier/forms.py
+++ b/calendrier/forms.py
@@ -1,8 +1,8 @@
 from django import forms
 from django.utils.translation import gettext_lazy as _
+from gestion.models import ErnestoUser
 
 from calendrier.models import Event, Participants
-from gestion.models import ErnestoUser
 
 
 class ModifEventForm(forms.ModelForm):
diff --git a/calendrier/migrations/0007_auto_20220314_2320.py b/calendrier/migrations/0007_auto_20220314_2320.py
index 50f830c..efa672d 100644
--- a/calendrier/migrations/0007_auto_20220314_2320.py
+++ b/calendrier/migrations/0007_auto_20220314_2320.py
@@ -1,25 +1,31 @@
 # Generated by Django 2.2.25 on 2022-03-14 23:20
 
-from django.db import migrations, models
 import django.utils.timezone
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('calendrier', '0006_auto_20210929_1629'),
+        ("calendrier", "0006_auto_20210929_1629"),
     ]
 
     operations = [
         migrations.AddField(
-            model_name='participants',
-            name='creationDate',
-            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now, verbose_name='Date de création'),
+            model_name="participants",
+            name="creationDate",
+            field=models.DateTimeField(
+                auto_now_add=True,
+                default=django.utils.timezone.now,
+                verbose_name="Date de création",
+            ),
             preserve_default=False,
         ),
         migrations.AddField(
-            model_name='participants',
-            name='updateDate',
-            field=models.DateTimeField(auto_now=True, verbose_name='Dernière mise à jour'),
+            model_name="participants",
+            name="updateDate",
+            field=models.DateTimeField(
+                auto_now=True, verbose_name="Dernière mise à jour"
+            ),
         ),
     ]
diff --git a/calendrier/models.py b/calendrier/models.py
index c562094..89fcbde 100644
--- a/calendrier/models.py
+++ b/calendrier/models.py
@@ -2,7 +2,6 @@ import uuid
 
 from django.db import models
 from django.utils.translation import gettext_lazy as _
-
 from gestion.models import INSTRU_CHOICES, ErnestoUser
 
 ANSWERS = (
@@ -73,5 +72,9 @@ class Participants(models.Model):
         choices=[("Non", _("Non")), ("Oui", _("Oui"))],
     )
     details = models.CharField(max_length=50, blank=True)
-    creationDate = models.DateTimeField(auto_now_add=True, verbose_name = _("Date de création"))
-    updateDate = models.DateTimeField(auto_now=True, verbose_name = _("Dernière mise à jour"))
+    creationDate = models.DateTimeField(
+        auto_now_add=True, verbose_name=_("Date de création")
+    )
+    updateDate = models.DateTimeField(
+        auto_now=True, verbose_name=_("Dernière mise à jour")
+    )
diff --git a/calendrier/tests/test_views.py b/calendrier/tests/test_views.py
index 081f7b8..0aa0157 100644
--- a/calendrier/tests/test_views.py
+++ b/calendrier/tests/test_views.py
@@ -4,7 +4,6 @@ from django.contrib.auth import get_user_model
 from django.template.defaultfilters import urlencode
 from django.test import Client, TestCase
 from django.utils import timezone
-
 from gestion.models import ErnestoUser
 
 from ..models import Event
diff --git a/calendrier/views.py b/calendrier/views.py
index c80ff0b..c8914bc 100644
--- a/calendrier/views.py
+++ b/calendrier/views.py
@@ -4,20 +4,20 @@ from calendar import monthrange
 from collections import defaultdict
 from datetime import date, datetime
 
+from actu.models import Actu
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.db.models import Q
 from django.shortcuts import get_object_or_404, redirect, render
 from django.urls import reverse, reverse_lazy
 from django.utils.safestring import mark_safe
 from django.views.generic import DeleteView, TemplateView, UpdateView
+from gestion.mixins import ChefEventRequiredMixin, ChefRequiredMixin
+from gestion.models import Photo
 
-from actu.models import Actu
 from calendrier.calend import EventCalendar
 from calendrier.forms import (ChangeDoodleName, EventForm, ModifEventForm,
                               ParticipantsForm)
 from calendrier.models import Event, Participants
-from gestion.mixins import ChefEventRequiredMixin, ChefRequiredMixin
-from gestion.models import Photo
 
 
 def generer(*args):
@@ -379,7 +379,7 @@ class ReponseEvent(LoginRequiredMixin, TemplateView):
             p = Participants.objects.get(event=ev, participant=part)
         except Participants.DoesNotExist:
             p = None
-        form = self.form_class(request.POST, instance = p)
+        form = self.form_class(request.POST, instance=p)
         if form.is_valid():
             obj = form.save(commit=False)
             # Si la participation existe déjà, ces 2 ligne sont redondantes