diff --git a/src/backend/joanie/badges/models.py b/src/backend/joanie/badges/models.py
index 215763d1c..cd9850bc5 100644
--- a/src/backend/joanie/badges/models.py
+++ b/src/backend/joanie/badges/models.py
@@ -1,6 +1,7 @@
 """
 Declare and configure the models for the badges part
 """
+
 from functools import lru_cache
 
 from django.db import models
diff --git a/src/backend/joanie/celery_app.py b/src/backend/joanie/celery_app.py
index 68d5f7fa1..cc3e927ec 100644
--- a/src/backend/joanie/celery_app.py
+++ b/src/backend/joanie/celery_app.py
@@ -1,4 +1,5 @@
 """Joanie celery configuration file."""
+
 import os
 
 from celery import Celery
diff --git a/src/backend/joanie/client_urls.py b/src/backend/joanie/client_urls.py
index 862940eb5..0fadbb5ca 100644
--- a/src/backend/joanie/client_urls.py
+++ b/src/backend/joanie/client_urls.py
@@ -13,6 +13,7 @@
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
+
 from django.conf import settings
 from django.urls import include, path, re_path
 
diff --git a/src/backend/joanie/core/api/__init__.py b/src/backend/joanie/core/api/__init__.py
index 8505cee79..41b290f3c 100644
--- a/src/backend/joanie/core/api/__init__.py
+++ b/src/backend/joanie/core/api/__init__.py
@@ -1,4 +1,5 @@
 """API for the joanie project."""
+
 from http import HTTPStatus
 
 from django.core.exceptions import ValidationError as DjangoValidationError
diff --git a/src/backend/joanie/core/api/admin.py b/src/backend/joanie/core/api/admin.py
index b481ca788..1b380bc62 100755
--- a/src/backend/joanie/core/api/admin.py
+++ b/src/backend/joanie/core/api/admin.py
@@ -1,6 +1,7 @@
 """
 Admin API Endpoints
 """
+
 from http import HTTPStatus
 
 from django.core.exceptions import ValidationError
diff --git a/src/backend/joanie/core/api/base.py b/src/backend/joanie/core/api/base.py
index 1b50f8377..71e433e06 100644
--- a/src/backend/joanie/core/api/base.py
+++ b/src/backend/joanie/core/api/base.py
@@ -1,4 +1,5 @@
-"""Base API classes for the Joanie project. """
+"""Base API classes for the Joanie project."""
+
 from rest_framework import viewsets
 
 
diff --git a/src/backend/joanie/core/api/client.py b/src/backend/joanie/core/api/client.py
index 6bfc4995b..b22176777 100644
--- a/src/backend/joanie/core/api/client.py
+++ b/src/backend/joanie/core/api/client.py
@@ -1,6 +1,7 @@
 """
 Client API endpoints
 """
+
 # pylint: disable=too-many-ancestors, too-many-lines
 import io
 import uuid
@@ -470,9 +471,9 @@ def invoice(self, request, pk=None):  # pylint: disable=no-self-use, invalid-nam
         response = HttpResponse(
             invoice_pdf_bytes, content_type="application/pdf", status=HTTPStatus.OK
         )
-        response[
-            "Content-Disposition"
-        ] = f"attachment; filename={invoice.reference}.pdf;"
+        response["Content-Disposition"] = (
+            f"attachment; filename={invoice.reference}.pdf;"
+        )
 
         return response
 
diff --git a/src/backend/joanie/core/api/remote_endpoints.py b/src/backend/joanie/core/api/remote_endpoints.py
index fee67959d..5eb4f9f32 100644
--- a/src/backend/joanie/core/api/remote_endpoints.py
+++ b/src/backend/joanie/core/api/remote_endpoints.py
@@ -1,6 +1,7 @@
 """
 Remote endpoints API for other servers.
 """
+
 from http import HTTPStatus
 
 from django.http import JsonResponse
diff --git a/src/backend/joanie/core/apps.py b/src/backend/joanie/core/apps.py
index ceae20028..607a2d544 100644
--- a/src/backend/joanie/core/apps.py
+++ b/src/backend/joanie/core/apps.py
@@ -1,4 +1,5 @@
 """Joanie Core application"""
+
 from django.apps import AppConfig
 from django.db.models.signals import m2m_changed, post_save
 from django.utils.translation import gettext_lazy as _
diff --git a/src/backend/joanie/core/authentication.py b/src/backend/joanie/core/authentication.py
index 0938629f2..6aaf396e2 100644
--- a/src/backend/joanie/core/authentication.py
+++ b/src/backend/joanie/core/authentication.py
@@ -1,4 +1,5 @@
 """Authentication for joanie's core app."""
+
 from django.conf import settings
 from django.utils.functional import SimpleLazyObject
 from django.utils.translation import get_supported_language_variant
diff --git a/src/backend/joanie/core/enums.py b/src/backend/joanie/core/enums.py
index c26ec3494..26b248051 100644
--- a/src/backend/joanie/core/enums.py
+++ b/src/backend/joanie/core/enums.py
@@ -1,6 +1,7 @@
 """
 Core application enums declaration
 """
+
 from django.conf import global_settings, settings
 from django.utils.translation import gettext_lazy as _
 from django.utils.translation import pgettext_lazy
diff --git a/src/backend/joanie/core/factories.py b/src/backend/joanie/core/factories.py
index 49415f92f..91d6967fe 100644
--- a/src/backend/joanie/core/factories.py
+++ b/src/backend/joanie/core/factories.py
@@ -2,6 +2,7 @@
 """
 Core application factories
 """
+
 import hashlib
 import json
 import random
diff --git a/src/backend/joanie/core/fields/multiselect.py b/src/backend/joanie/core/fields/multiselect.py
index 48d8522f2..21b90348a 100644
--- a/src/backend/joanie/core/fields/multiselect.py
+++ b/src/backend/joanie/core/fields/multiselect.py
@@ -1,4 +1,5 @@
 """A multi select field where the array of values is stored as a comma separated string."""
+
 from django.core import checks, exceptions, validators
 from django.db import models
 from django.forms import MultipleChoiceField, widgets
diff --git a/src/backend/joanie/core/filters/admin.py b/src/backend/joanie/core/filters/admin.py
index 6c3586b7f..a3a67cbd5 100755
--- a/src/backend/joanie/core/filters/admin.py
+++ b/src/backend/joanie/core/filters/admin.py
@@ -1,6 +1,7 @@
 """
 Admin API Resource Filters
 """
+
 from typing import List
 
 from django.conf import settings
diff --git a/src/backend/joanie/core/filters/client.py b/src/backend/joanie/core/filters/client.py
index 32be8dd3c..c7ba23eb0 100755
--- a/src/backend/joanie/core/filters/client.py
+++ b/src/backend/joanie/core/filters/client.py
@@ -1,6 +1,7 @@
 """
 Client API Resource Filters
 """
+
 from typing import List
 
 from django.db.models import Q
diff --git a/src/backend/joanie/core/forms.py b/src/backend/joanie/core/forms.py
index d418ee8f1..9ff815555 100644
--- a/src/backend/joanie/core/forms.py
+++ b/src/backend/joanie/core/forms.py
@@ -1,6 +1,7 @@
 """
 Core application forms declaration
 """
+
 from django import forms
 from django.contrib.admin import widgets
 
diff --git a/src/backend/joanie/core/helpers.py b/src/backend/joanie/core/helpers.py
index bff0c6469..66bee3ea7 100644
--- a/src/backend/joanie/core/helpers.py
+++ b/src/backend/joanie/core/helpers.py
@@ -1,6 +1,7 @@
 """
 Helpers that can be useful throughout Joanie's core app
 """
+
 from joanie.core import enums
 
 
diff --git a/src/backend/joanie/core/management/commands/generate_certificates.py b/src/backend/joanie/core/management/commands/generate_certificates.py
index 368c121a2..d5bbe6b30 100644
--- a/src/backend/joanie/core/management/commands/generate_certificates.py
+++ b/src/backend/joanie/core/management/commands/generate_certificates.py
@@ -1,4 +1,5 @@
 """Management command to generate all pending certificates."""
+
 import logging
 
 from django.core.management import BaseCommand
diff --git a/src/backend/joanie/core/management/commands/synchronize_course_runs.py b/src/backend/joanie/core/management/commands/synchronize_course_runs.py
index cec260e72..e75725c70 100644
--- a/src/backend/joanie/core/management/commands/synchronize_course_runs.py
+++ b/src/backend/joanie/core/management/commands/synchronize_course_runs.py
@@ -1,4 +1,5 @@
 """Management command to synchronize course runs or equivalent course runs."""
+
 import logging
 from uuid import UUID
 
diff --git a/src/backend/joanie/core/middleware.py b/src/backend/joanie/core/middleware.py
index fdf1dcd18..825cf48d0 100644
--- a/src/backend/joanie/core/middleware.py
+++ b/src/backend/joanie/core/middleware.py
@@ -1,4 +1,5 @@
 """Middleware for joanie project."""
+
 import time
 
 from dockerflow.django.middleware import DockerflowMiddleware
diff --git a/src/backend/joanie/core/models/__init__.py b/src/backend/joanie/core/models/__init__.py
index d4ca68aa2..f9c099b43 100644
--- a/src/backend/joanie/core/models/__init__.py
+++ b/src/backend/joanie/core/models/__init__.py
@@ -1,4 +1,5 @@
 """Make models.py a module containing one file per model as it was getting too long."""
+
 # pylint: disable=wildcard-import
 from .accounts import *
 from .certifications import *
diff --git a/src/backend/joanie/core/models/accounts.py b/src/backend/joanie/core/models/accounts.py
index 253315106..861c4e8ed 100644
--- a/src/backend/joanie/core/models/accounts.py
+++ b/src/backend/joanie/core/models/accounts.py
@@ -1,6 +1,7 @@
 """
 Declare and configure the models for the customers part
 """
+
 import django.contrib.auth.models as auth_models
 from django.conf import settings
 from django.core.exceptions import ValidationError
diff --git a/src/backend/joanie/core/models/base.py b/src/backend/joanie/core/models/base.py
index 46fa5d544..0b35a5175 100644
--- a/src/backend/joanie/core/models/base.py
+++ b/src/backend/joanie/core/models/base.py
@@ -4,6 +4,7 @@
 In this base model, we activate generic behaviours that apply to all our models and enforce
 checks and validation that go further than what Django is doing.
 """
+
 import uuid
 from itertools import chain
 
diff --git a/src/backend/joanie/core/models/certifications.py b/src/backend/joanie/core/models/certifications.py
index 49768d0ee..d38f84335 100644
--- a/src/backend/joanie/core/models/certifications.py
+++ b/src/backend/joanie/core/models/certifications.py
@@ -1,6 +1,7 @@
 """
 Declare and configure the models for the certifications part
 """
+
 import logging
 
 from django.conf import settings
diff --git a/src/backend/joanie/core/models/contracts.py b/src/backend/joanie/core/models/contracts.py
index dc8e58011..bfab68ae4 100644
--- a/src/backend/joanie/core/models/contracts.py
+++ b/src/backend/joanie/core/models/contracts.py
@@ -1,6 +1,7 @@
 """
 Declare and configure the models for Joanie's contracts
 """
+
 import logging
 import textwrap
 from datetime import timedelta
diff --git a/src/backend/joanie/core/models/course_wishes.py b/src/backend/joanie/core/models/course_wishes.py
index e38424ed3..5b93777bf 100644
--- a/src/backend/joanie/core/models/course_wishes.py
+++ b/src/backend/joanie/core/models/course_wishes.py
@@ -1,6 +1,7 @@
 """
 Declare and configure models for course wishes
 """
+
 from django.db import models
 from django.utils.translation import gettext_lazy as _
 
diff --git a/src/backend/joanie/core/models/courses.py b/src/backend/joanie/core/models/courses.py
index 940a81177..868336e4e 100644
--- a/src/backend/joanie/core/models/courses.py
+++ b/src/backend/joanie/core/models/courses.py
@@ -1,6 +1,7 @@
 """
 Declare and configure the models for the courses part
 """
+
 import itertools
 import logging
 from collections.abc import Mapping
diff --git a/src/backend/joanie/core/models/products.py b/src/backend/joanie/core/models/products.py
index e0a342a64..a1011a9de 100644
--- a/src/backend/joanie/core/models/products.py
+++ b/src/backend/joanie/core/models/products.py
@@ -1,6 +1,7 @@
 """
 Declare and configure the models for the product / order part
 """
+
 import itertools
 import logging
 from collections import defaultdict
diff --git a/src/backend/joanie/core/models/site.py b/src/backend/joanie/core/models/site.py
index 27e1b0b67..33b37bc14 100644
--- a/src/backend/joanie/core/models/site.py
+++ b/src/backend/joanie/core/models/site.py
@@ -1,4 +1,5 @@
 """Site extension models for the Joanie project."""
+
 import textwrap
 
 from django.contrib.sites.models import Site
diff --git a/src/backend/joanie/core/pagination.py b/src/backend/joanie/core/pagination.py
index a76b78f7c..640da6ecd 100644
--- a/src/backend/joanie/core/pagination.py
+++ b/src/backend/joanie/core/pagination.py
@@ -1,4 +1,5 @@
 """Pagination used by django rest framework."""
+
 from rest_framework.pagination import PageNumberPagination
 
 
diff --git a/src/backend/joanie/core/permissions.py b/src/backend/joanie/core/permissions.py
index eebbc67f1..6b462dc76 100644
--- a/src/backend/joanie/core/permissions.py
+++ b/src/backend/joanie/core/permissions.py
@@ -1,4 +1,5 @@
 """Permission handlers for joanie's core app."""
+
 from django.conf import settings
 
 from rest_framework import permissions
diff --git a/src/backend/joanie/core/serializers/admin.py b/src/backend/joanie/core/serializers/admin.py
index bc189ec16..19805c6fe 100755
--- a/src/backend/joanie/core/serializers/admin.py
+++ b/src/backend/joanie/core/serializers/admin.py
@@ -1,5 +1,6 @@
 # pylint: disable=too-many-lines
 """Admin serializers for Joanie Core app."""
+
 from django.conf import settings
 
 from drf_spectacular.utils import extend_schema_serializer
diff --git a/src/backend/joanie/core/serializers/base.py b/src/backend/joanie/core/serializers/base.py
index 7be9afcfd..1b844c727 100644
--- a/src/backend/joanie/core/serializers/base.py
+++ b/src/backend/joanie/core/serializers/base.py
@@ -1,4 +1,5 @@
 """Base Serializer classes for the Joanie project."""
+
 from django.conf import settings
 from django.core.cache import cache
 
diff --git a/src/backend/joanie/core/serializers/client.py b/src/backend/joanie/core/serializers/client.py
index c80849d57..3af9d738f 100644
--- a/src/backend/joanie/core/serializers/client.py
+++ b/src/backend/joanie/core/serializers/client.py
@@ -1,4 +1,5 @@
 """Client serializers for Joanie Core app."""
+
 # pylint: disable=too-many-lines
 from django.conf import settings
 from django.utils.translation import get_language
@@ -983,10 +984,10 @@ def validate(self, attrs):
         errors = {}
         if course_product_relation_id:
             try:
-                attrs[
-                    "course_product_relation"
-                ] = models.CourseProductRelation.objects.get(
-                    pk=course_product_relation_id
+                attrs["course_product_relation"] = (
+                    models.CourseProductRelation.objects.get(
+                        pk=course_product_relation_id
+                    )
                 )
             except models.CourseProductRelation.DoesNotExist:
                 errors["course_product_relation_id"] = (
diff --git a/src/backend/joanie/core/serializers/fields.py b/src/backend/joanie/core/serializers/fields.py
index 51867996b..0f02daef8 100644
--- a/src/backend/joanie/core/serializers/fields.py
+++ b/src/backend/joanie/core/serializers/fields.py
@@ -1,4 +1,5 @@
 """Custom serializer fields."""
+
 from drf_spectacular.types import OpenApiTypes
 from drf_spectacular.utils import extend_schema_field
 from easy_thumbnails.alias import aliases
diff --git a/src/backend/joanie/core/signals.py b/src/backend/joanie/core/signals.py
index 010f7a086..17d55dc40 100644
--- a/src/backend/joanie/core/signals.py
+++ b/src/backend/joanie/core/signals.py
@@ -1,6 +1,7 @@
 """
 Helpers that can be useful throughout Joanie's core app
 """
+
 import logging
 
 from django.core.exceptions import ValidationError
diff --git a/src/backend/joanie/core/storages.py b/src/backend/joanie/core/storages.py
index 9a89157e0..f432d0d31 100644
--- a/src/backend/joanie/core/storages.py
+++ b/src/backend/joanie/core/storages.py
@@ -1,4 +1,5 @@
 """Module containing specific storages."""
+
 from django.conf import settings
 
 from storages.backends.s3 import S3Storage
diff --git a/src/backend/joanie/core/tasks.py b/src/backend/joanie/core/tasks.py
index 4c973faee..14d3c1bd6 100644
--- a/src/backend/joanie/core/tasks.py
+++ b/src/backend/joanie/core/tasks.py
@@ -1,4 +1,5 @@
 """Celery tasks for the `core` app of Joanie"""
+
 from logging import getLogger
 
 from django.core.management import call_command
diff --git a/src/backend/joanie/core/templatetags/extra_tags.py b/src/backend/joanie/core/templatetags/extra_tags.py
index e59249f56..c9601f346 100644
--- a/src/backend/joanie/core/templatetags/extra_tags.py
+++ b/src/backend/joanie/core/templatetags/extra_tags.py
@@ -1,4 +1,5 @@
 """Custom template tags for the core application of Joanie."""
+
 import math
 
 from django import template
diff --git a/src/backend/joanie/core/utils/__init__.py b/src/backend/joanie/core/utils/__init__.py
index 0c7b3e685..4d23c9102 100755
--- a/src/backend/joanie/core/utils/__init__.py
+++ b/src/backend/joanie/core/utils/__init__.py
@@ -1,6 +1,7 @@
 """
 Utils that can be useful throughout Joanie's core app
 """
+
 import base64
 import collections.abc
 import json
diff --git a/src/backend/joanie/core/utils/contract.py b/src/backend/joanie/core/utils/contract.py
index bdbf30e0a..c9b213fed 100644
--- a/src/backend/joanie/core/utils/contract.py
+++ b/src/backend/joanie/core/utils/contract.py
@@ -1,4 +1,5 @@
 """Utility to generate a ZIP archive of PDF bytes files for contracts that are signed"""
+
 import io
 import zipfile
 from logging import getLogger
diff --git a/src/backend/joanie/core/utils/contract_definition.py b/src/backend/joanie/core/utils/contract_definition.py
index 627198f51..c7ffedcb3 100644
--- a/src/backend/joanie/core/utils/contract_definition.py
+++ b/src/backend/joanie/core/utils/contract_definition.py
@@ -1,4 +1,5 @@
 """Utility to `generate document context` data"""
+
 from django.conf import settings
 from django.contrib.sites.models import Site
 from django.utils.translation import gettext as _
diff --git a/src/backend/joanie/core/utils/course_run.py b/src/backend/joanie/core/utils/course_run.py
index 9a93b4535..4ebba7f55 100644
--- a/src/backend/joanie/core/utils/course_run.py
+++ b/src/backend/joanie/core/utils/course_run.py
@@ -1,6 +1,7 @@
 """
 Utility methods for Course Run on enrollments metrics and orders made.
 """
+
 import logging
 
 from django.core.exceptions import ValidationError
diff --git a/src/backend/joanie/core/utils/issuers.py b/src/backend/joanie/core/utils/issuers.py
index 0e677388a..68926a508 100644
--- a/src/backend/joanie/core/utils/issuers.py
+++ b/src/backend/joanie/core/utils/issuers.py
@@ -1,4 +1,5 @@
 """Utils that can be useful throughout Joanie's core app for document issuers"""
+
 from pathlib import Path
 
 from django.template import Context
diff --git a/src/backend/joanie/core/utils/webhooks.py b/src/backend/joanie/core/utils/webhooks.py
index 1ca364826..5770aeff8 100644
--- a/src/backend/joanie/core/utils/webhooks.py
+++ b/src/backend/joanie/core/utils/webhooks.py
@@ -1,6 +1,7 @@
 """
 Utils that can be useful throughout Joanie's core app to synchronize data with other services
 """
+
 import hashlib
 import hmac
 import json
diff --git a/src/backend/joanie/core/views/__init__.py b/src/backend/joanie/core/views/__init__.py
index 1fbbce629..8c6bc22f0 100644
--- a/src/backend/joanie/core/views/__init__.py
+++ b/src/backend/joanie/core/views/__init__.py
@@ -1,3 +1,4 @@
 """Views of the ``core`` app of the Joanie project."""
+
 from .certificate import *
 from .redirect import *
diff --git a/src/backend/joanie/core/views/certificate.py b/src/backend/joanie/core/views/certificate.py
index 018f976d6..81ef01f9d 100644
--- a/src/backend/joanie/core/views/certificate.py
+++ b/src/backend/joanie/core/views/certificate.py
@@ -1,4 +1,5 @@
 """Certificate views for the Joanie core app."""
+
 import base64
 
 from django.contrib.sites.models import Site
diff --git a/src/backend/joanie/core/views/redirect.py b/src/backend/joanie/core/views/redirect.py
index 2c89e9752..9bc6a5e75 100644
--- a/src/backend/joanie/core/views/redirect.py
+++ b/src/backend/joanie/core/views/redirect.py
@@ -1,4 +1,5 @@
 """Redirect views of the `core`app."""
+
 from django.conf import settings
 from django.views.generic.base import RedirectView
 
diff --git a/src/backend/joanie/debug/views.py b/src/backend/joanie/debug/views.py
index dd1c3548c..7110df4d3 100644
--- a/src/backend/joanie/debug/views.py
+++ b/src/backend/joanie/debug/views.py
@@ -1,4 +1,5 @@
 """All debug views of the `debug`app."""
+
 import base64
 import datetime
 from logging import getLogger
diff --git a/src/backend/joanie/demo/management/commands/create_dev_demo.py b/src/backend/joanie/demo/management/commands/create_dev_demo.py
index 2ac024636..02b1133b0 100644
--- a/src/backend/joanie/demo/management/commands/create_dev_demo.py
+++ b/src/backend/joanie/demo/management/commands/create_dev_demo.py
@@ -1,5 +1,6 @@
 # ruff: noqa: S311, PLR0913, PLR0915
 """Management command to initialize some fake data (products, courses and course runs)"""
+
 import random
 
 from django.conf import settings
diff --git a/src/backend/joanie/demo/management/commands/generate_jwt_tokens.py b/src/backend/joanie/demo/management/commands/generate_jwt_tokens.py
index b3b63bcbd..108334f7e 100644
--- a/src/backend/joanie/demo/management/commands/generate_jwt_tokens.py
+++ b/src/backend/joanie/demo/management/commands/generate_jwt_tokens.py
@@ -1,4 +1,5 @@
 """Management command to generate user JWT tokens"""
+
 import json
 from datetime import datetime, timedelta
 
diff --git a/src/backend/joanie/edx_imports/checks.py b/src/backend/joanie/edx_imports/checks.py
index 8627373fe..73a1245df 100644
--- a/src/backend/joanie/edx_imports/checks.py
+++ b/src/backend/joanie/edx_imports/checks.py
@@ -3,6 +3,7 @@
 """
 Check the environment variables and database connections required for the import tasks.
 """
+
 from http import HTTPStatus
 from logging import getLogger
 
diff --git a/src/backend/joanie/edx_imports/edx_factories.py b/src/backend/joanie/edx_imports/edx_factories.py
index 3bb52aafc..adf32acf8 100644
--- a/src/backend/joanie/edx_imports/edx_factories.py
+++ b/src/backend/joanie/edx_imports/edx_factories.py
@@ -1,4 +1,5 @@
 """Factory classes for generating fake data for testing."""
+
 import random
 
 import factory
diff --git a/src/backend/joanie/edx_imports/edx_models.py b/src/backend/joanie/edx_imports/edx_models.py
index aa72aaf74..f90b7970a 100644
--- a/src/backend/joanie/edx_imports/edx_models.py
+++ b/src/backend/joanie/edx_imports/edx_models.py
@@ -1,4 +1,5 @@
 """Models for the Open edX database."""
+
 import datetime
 import decimal
 from typing import List, Optional
@@ -42,9 +43,9 @@ class User(Base):
     user_api_userpreference: Mapped[List["UserPreference"]] = relationship(
         "UserPreference", back_populates="user"
     )
-    certificates_generatedcertificate: Mapped[
-        List["GeneratedCertificate"]
-    ] = relationship("GeneratedCertificate", back_populates="user")
+    certificates_generatedcertificate: Mapped[List["GeneratedCertificate"]] = (
+        relationship("GeneratedCertificate", back_populates="user")
+    )
 
 
 class UserProfile(Base):
@@ -216,9 +217,9 @@ class Course(Base):
     course_overviews_courseoverview: Mapped["CourseOverview"] = relationship(
         "CourseOverview", back_populates="course"
     )
-    courses_courseuniversityrelation: Mapped[
-        List["CourseUniversityRelation"]
-    ] = relationship("CourseUniversityRelation", back_populates="course")
+    courses_courseuniversityrelation: Mapped[List["CourseUniversityRelation"]] = (
+        relationship("CourseUniversityRelation", back_populates="course")
+    )
 
 
 class University(Base):
@@ -250,9 +251,9 @@ class University(Base):
     banner: Mapped[Optional[str]] = mapped_column(String(100))
     certificate_logo: Mapped[Optional[str]] = mapped_column(String(100))
 
-    courses_courseuniversityrelation: Mapped[
-        List["CourseUniversityRelation"]
-    ] = relationship("CourseUniversityRelation", back_populates="university")
+    courses_courseuniversityrelation: Mapped[List["CourseUniversityRelation"]] = (
+        relationship("CourseUniversityRelation", back_populates="university")
+    )
 
 
 class CourseUniversityRelation(Base):
diff --git a/src/backend/joanie/edx_imports/edx_mongodb.py b/src/backend/joanie/edx_imports/edx_mongodb.py
index 816db25a9..179818aaf 100644
--- a/src/backend/joanie/edx_imports/edx_mongodb.py
+++ b/src/backend/joanie/edx_imports/edx_mongodb.py
@@ -1,4 +1,5 @@
 """Module to connect to Open edX mongodb and extract data"""
+
 from django.conf import settings
 
 from pymongo import MongoClient
diff --git a/src/backend/joanie/edx_imports/management/commands/migrate_edx.py b/src/backend/joanie/edx_imports/management/commands/migrate_edx.py
index 9d0402f8d..fc5ba3897 100644
--- a/src/backend/joanie/edx_imports/management/commands/migrate_edx.py
+++ b/src/backend/joanie/edx_imports/management/commands/migrate_edx.py
@@ -1,4 +1,5 @@
 """Import data from Open edX database to Joanie database"""
+
 import logging
 
 from django.core.management import BaseCommand
diff --git a/src/backend/joanie/edx_imports/tasks/__init__.py b/src/backend/joanie/edx_imports/tasks/__init__.py
index 127b71c7e..e47ec08d1 100644
--- a/src/backend/joanie/edx_imports/tasks/__init__.py
+++ b/src/backend/joanie/edx_imports/tasks/__init__.py
@@ -1,4 +1,5 @@
 """Module for importing tasks."""
+
 from .certificates import import_certificates_batch_task
 from .course_runs import import_course_runs_batch_task
 from .enrollments import import_enrollments_batch_task
diff --git a/src/backend/joanie/edx_imports/tasks/universities.py b/src/backend/joanie/edx_imports/tasks/universities.py
index 17ba8c481..2c1d39041 100644
--- a/src/backend/joanie/edx_imports/tasks/universities.py
+++ b/src/backend/joanie/edx_imports/tasks/universities.py
@@ -1,4 +1,5 @@
 """Celery tasks for importing Open edX universities to Joanie organizations."""
+
 from logging import getLogger
 
 from joanie.celery_app import app
diff --git a/src/backend/joanie/lms_handler/__init__.py b/src/backend/joanie/lms_handler/__init__.py
index edaa11272..6fe417908 100644
--- a/src/backend/joanie/lms_handler/__init__.py
+++ b/src/backend/joanie/lms_handler/__init__.py
@@ -1,4 +1,5 @@
 """LMS Handler"""
+
 import re
 
 from django.conf import settings
diff --git a/src/backend/joanie/lms_handler/api.py b/src/backend/joanie/lms_handler/api.py
index 99177b581..fbc00b8c2 100644
--- a/src/backend/joanie/lms_handler/api.py
+++ b/src/backend/joanie/lms_handler/api.py
@@ -1,6 +1,7 @@
 """
 API endpoints
 """
+
 import hashlib
 import hmac
 from http import HTTPStatus
diff --git a/src/backend/joanie/lms_handler/backends/moodle.py b/src/backend/joanie/lms_handler/backends/moodle.py
index 7d72a7579..a7ead3a51 100644
--- a/src/backend/joanie/lms_handler/backends/moodle.py
+++ b/src/backend/joanie/lms_handler/backends/moodle.py
@@ -1,6 +1,7 @@
 """
 Backend to connect Joanie to Moodle LMS
 """
+
 import logging
 from urllib.parse import parse_qs, urlparse
 
diff --git a/src/backend/joanie/lms_handler/backends/openedx.py b/src/backend/joanie/lms_handler/backends/openedx.py
index 409cd2717..b4eb40d16 100644
--- a/src/backend/joanie/lms_handler/backends/openedx.py
+++ b/src/backend/joanie/lms_handler/backends/openedx.py
@@ -1,6 +1,7 @@
 """
 Backend to connect Joanie to OpenEdX LMS
 """
+
 import json
 import logging
 import re
diff --git a/src/backend/joanie/lms_handler/serializers.py b/src/backend/joanie/lms_handler/serializers.py
index 7945f1e36..0bfcc7c5d 100644
--- a/src/backend/joanie/lms_handler/serializers.py
+++ b/src/backend/joanie/lms_handler/serializers.py
@@ -1,4 +1,5 @@
 """Serializers for Joanie's LMS handler."""
+
 from django.utils.functional import lazy
 
 from rest_framework import serializers
diff --git a/src/backend/joanie/lms_handler/urls.py b/src/backend/joanie/lms_handler/urls.py
index 6af3de8c0..0731435ae 100644
--- a/src/backend/joanie/lms_handler/urls.py
+++ b/src/backend/joanie/lms_handler/urls.py
@@ -1,6 +1,7 @@
 """
 API routes exposed by our LMS handler app.
 """
+
 from django.urls import re_path
 
 from rest_framework import routers
diff --git a/src/backend/joanie/payment/__init__.py b/src/backend/joanie/payment/__init__.py
index 26c8b50e9..f3506983c 100644
--- a/src/backend/joanie/payment/__init__.py
+++ b/src/backend/joanie/payment/__init__.py
@@ -1,4 +1,5 @@
 """Payment"""
+
 from django.conf import settings
 from django.utils.module_loading import import_string
 
diff --git a/src/backend/joanie/payment/admin.py b/src/backend/joanie/payment/admin.py
index ce7c66dea..dfd3c77db 100644
--- a/src/backend/joanie/payment/admin.py
+++ b/src/backend/joanie/payment/admin.py
@@ -1,6 +1,7 @@
 """
 Payment application admin
 """
+
 from django.contrib import admin
 from django.contrib.admin.options import csrf_protect_m
 from django.urls import reverse
diff --git a/src/backend/joanie/payment/api.py b/src/backend/joanie/payment/api.py
index 4b70b0b8a..f4c9ecd27 100644
--- a/src/backend/joanie/payment/api.py
+++ b/src/backend/joanie/payment/api.py
@@ -1,6 +1,7 @@
 """
 API endpoints
 """
+
 import logging
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/payment/apps.py b/src/backend/joanie/payment/apps.py
index a034cc887..16a2d69e0 100644
--- a/src/backend/joanie/payment/apps.py
+++ b/src/backend/joanie/payment/apps.py
@@ -1,4 +1,5 @@
 """Joanie Payment application"""
+
 from django.apps import AppConfig
 from django.utils.translation import gettext_lazy as _
 
diff --git a/src/backend/joanie/payment/backends/base.py b/src/backend/joanie/payment/backends/base.py
index f1b832d06..e3f17d3e0 100644
--- a/src/backend/joanie/payment/backends/base.py
+++ b/src/backend/joanie/payment/backends/base.py
@@ -1,4 +1,5 @@
 """Base Payment Backend"""
+
 import smtplib
 from logging import getLogger
 
diff --git a/src/backend/joanie/payment/backends/dummy.py b/src/backend/joanie/payment/backends/dummy.py
index 903f19822..7b2cc560f 100644
--- a/src/backend/joanie/payment/backends/dummy.py
+++ b/src/backend/joanie/payment/backends/dummy.py
@@ -1,4 +1,5 @@
 """Dummy Payment Backend"""
+
 import json
 import logging
 from decimal import Decimal as D
diff --git a/src/backend/joanie/payment/backends/payplug/__init__.py b/src/backend/joanie/payment/backends/payplug/__init__.py
index 89baae478..9fbb0e830 100644
--- a/src/backend/joanie/payment/backends/payplug/__init__.py
+++ b/src/backend/joanie/payment/backends/payplug/__init__.py
@@ -1,4 +1,5 @@
 """Payplug Payment Backend"""
+
 import logging
 from decimal import Decimal as D
 
diff --git a/src/backend/joanie/payment/backends/payplug/factories.py b/src/backend/joanie/payment/backends/payplug/factories.py
index a434dd541..20fd4e700 100644
--- a/src/backend/joanie/payment/backends/payplug/factories.py
+++ b/src/backend/joanie/payment/backends/payplug/factories.py
@@ -1,4 +1,5 @@
 """Payplug objects factories"""
+
 import string
 
 import factory
diff --git a/src/backend/joanie/payment/exceptions.py b/src/backend/joanie/payment/exceptions.py
index 788b5a710..023d44015 100644
--- a/src/backend/joanie/payment/exceptions.py
+++ b/src/backend/joanie/payment/exceptions.py
@@ -1,4 +1,5 @@
 """Payment exceptions"""
+
 from http import HTTPStatus
 
 from django.utils.translation import gettext_lazy as _
diff --git a/src/backend/joanie/payment/factories.py b/src/backend/joanie/payment/factories.py
index dd1ca2e48..6a6591ca5 100644
--- a/src/backend/joanie/payment/factories.py
+++ b/src/backend/joanie/payment/factories.py
@@ -1,6 +1,7 @@
 """
 Payment application factories
 """
+
 import string
 
 import factory.fuzzy
diff --git a/src/backend/joanie/payment/models.py b/src/backend/joanie/payment/models.py
index f36552fdf..9df84d3eb 100644
--- a/src/backend/joanie/payment/models.py
+++ b/src/backend/joanie/payment/models.py
@@ -1,6 +1,7 @@
 """
 Declare and configure models for the payment part
 """
+
 import logging
 from decimal import Decimal as D
 
diff --git a/src/backend/joanie/payment/serializers.py b/src/backend/joanie/payment/serializers.py
index 3f556499f..f9babd08b 100644
--- a/src/backend/joanie/payment/serializers.py
+++ b/src/backend/joanie/payment/serializers.py
@@ -1,4 +1,5 @@
 """Serializers for api."""
+
 from rest_framework import serializers
 
 from joanie.payment import models
diff --git a/src/backend/joanie/payment/urls.py b/src/backend/joanie/payment/urls.py
index 27e5c51c7..32037bdf4 100644
--- a/src/backend/joanie/payment/urls.py
+++ b/src/backend/joanie/payment/urls.py
@@ -1,6 +1,7 @@
 """
 API routes exposed by our Payment app
 """
+
 from django.urls import re_path
 
 from rest_framework.routers import DefaultRouter
diff --git a/src/backend/joanie/remote_endpoints_urls.py b/src/backend/joanie/remote_endpoints_urls.py
index 5f7470da9..3a0152bcd 100644
--- a/src/backend/joanie/remote_endpoints_urls.py
+++ b/src/backend/joanie/remote_endpoints_urls.py
@@ -1,6 +1,7 @@
 """
 API routes exposed for server to server. Requires a specific token to request.
 """
+
 from django.conf import settings
 from django.urls import path
 
diff --git a/src/backend/joanie/settings.py b/src/backend/joanie/settings.py
index e135a71b0..e7d20a9fd 100755
--- a/src/backend/joanie/settings.py
+++ b/src/backend/joanie/settings.py
@@ -9,6 +9,7 @@
 For the full list of settings and their values, see
 https://docs.djangoproject.com/en/3.1/ref/settings/
 """
+
 import json
 import os
 
diff --git a/src/backend/joanie/signature/api.py b/src/backend/joanie/signature/api.py
index bef3f3333..155f1be69 100644
--- a/src/backend/joanie/signature/api.py
+++ b/src/backend/joanie/signature/api.py
@@ -1,6 +1,7 @@
 """
 API endpoint for Signature
 """
+
 import logging
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/signature/apps.py b/src/backend/joanie/signature/apps.py
index eb9bcfc6b..7f3549026 100644
--- a/src/backend/joanie/signature/apps.py
+++ b/src/backend/joanie/signature/apps.py
@@ -1,4 +1,5 @@
 """Joanie Signature application"""
+
 from django.apps import AppConfig
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
diff --git a/src/backend/joanie/signature/backends/__init__.py b/src/backend/joanie/signature/backends/__init__.py
index 2495e5dd0..1c3e4d9f2 100644
--- a/src/backend/joanie/signature/backends/__init__.py
+++ b/src/backend/joanie/signature/backends/__init__.py
@@ -1,4 +1,5 @@
 """Get Signature Backend"""
+
 from django.conf import settings
 from django.utils.module_loading import import_string
 
diff --git a/src/backend/joanie/signature/backends/base.py b/src/backend/joanie/signature/backends/base.py
index 4913ce3bf..8a97b3aa6 100644
--- a/src/backend/joanie/signature/backends/base.py
+++ b/src/backend/joanie/signature/backends/base.py
@@ -1,4 +1,5 @@
 """Base Signature Backend"""
+
 import re
 from logging import getLogger
 
diff --git a/src/backend/joanie/signature/backends/dummy.py b/src/backend/joanie/signature/backends/dummy.py
index e03e52663..c3115c7ef 100644
--- a/src/backend/joanie/signature/backends/dummy.py
+++ b/src/backend/joanie/signature/backends/dummy.py
@@ -1,4 +1,5 @@
 """Dummy Signature Backend"""
+
 import smtplib
 from logging import getLogger
 from uuid import uuid4
diff --git a/src/backend/joanie/signature/backends/lex_persona.py b/src/backend/joanie/signature/backends/lex_persona.py
index b4269281b..b8f93a299 100644
--- a/src/backend/joanie/signature/backends/lex_persona.py
+++ b/src/backend/joanie/signature/backends/lex_persona.py
@@ -1,4 +1,5 @@
 """Signature Backend for Lex Persona Provider"""
+
 import io
 import json
 import re
diff --git a/src/backend/joanie/signature/exceptions.py b/src/backend/joanie/signature/exceptions.py
index 1af61c5c2..1f325af67 100644
--- a/src/backend/joanie/signature/exceptions.py
+++ b/src/backend/joanie/signature/exceptions.py
@@ -1,4 +1,5 @@
 """Signature exceptions"""
+
 from http import HTTPStatus
 
 from django.utils.translation import gettext_lazy as _
diff --git a/src/backend/joanie/signature/management/commands/generate_zip_archive_of_contracts.py b/src/backend/joanie/signature/management/commands/generate_zip_archive_of_contracts.py
index df4582563..32521a630 100644
--- a/src/backend/joanie/signature/management/commands/generate_zip_archive_of_contracts.py
+++ b/src/backend/joanie/signature/management/commands/generate_zip_archive_of_contracts.py
@@ -1,4 +1,5 @@
 """Management command to generate a ZIP archive of signed contracts into file system storage"""
+
 import logging
 import uuid
 
diff --git a/src/backend/joanie/signature/urls.py b/src/backend/joanie/signature/urls.py
index 54d0a6ff4..e920f70a5 100644
--- a/src/backend/joanie/signature/urls.py
+++ b/src/backend/joanie/signature/urls.py
@@ -1,6 +1,7 @@
 """
 API routes exposed by our Signature app
 """
+
 from django.urls import re_path
 
 from rest_framework.routers import DefaultRouter
diff --git a/src/backend/joanie/tests/badges/test_models.py b/src/backend/joanie/tests/badges/test_models.py
index 4e9c43e46..a6dfc7952 100644
--- a/src/backend/joanie/tests/badges/test_models.py
+++ b/src/backend/joanie/tests/badges/test_models.py
@@ -1,4 +1,5 @@
 """Test suite for badge models."""
+
 from django.test import TestCase
 
 from joanie.badges import factories, models
diff --git a/src/backend/joanie/tests/base.py b/src/backend/joanie/tests/base.py
index ff88c1d26..11bb9a714 100644
--- a/src/backend/joanie/tests/base.py
+++ b/src/backend/joanie/tests/base.py
@@ -1,6 +1,7 @@
 """
 Common base test cases
 """
+
 from datetime import datetime, timedelta
 
 from django.conf import settings
diff --git a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_create.py b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_create.py
index fe2af765d..e18c1e5cf 100644
--- a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_create.py
+++ b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_create.py
@@ -2,6 +2,7 @@
 """
 Test suite for CourseProductRelation create Admin API.
 """
+
 import uuid
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_delete.py b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_delete.py
index 72c56314c..1fec95710 100644
--- a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_delete.py
+++ b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_delete.py
@@ -1,6 +1,7 @@
 """
 Test suite for CourseProductRelation delete Admin API.
 """
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_list.py b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_list.py
index 0f6ee868d..91173a0b0 100644
--- a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_list.py
+++ b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_list.py
@@ -2,6 +2,7 @@
 """
 Test suite for CourseProductRelation list Admin API.
 """
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_retrieve.py b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_retrieve.py
index 4891adffc..a98d0e119 100644
--- a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_retrieve.py
+++ b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_retrieve.py
@@ -2,6 +2,7 @@
 """
 Test suite for CourseProductRelation retrieve Admin API.
 """
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_update.py b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_update.py
index 982ab1380..6ebd053cb 100644
--- a/src/backend/joanie/tests/core/api/admin/course_product_relations/test_update.py
+++ b/src/backend/joanie/tests/core/api/admin/course_product_relations/test_update.py
@@ -2,6 +2,7 @@
 """
 Test suite for CourseProductRelation update Admin API.
 """
+
 import uuid
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/api/order/test_abort.py b/src/backend/joanie/tests/core/api/order/test_abort.py
index 54cb642d1..4a39d3811 100644
--- a/src/backend/joanie/tests/core/api/order/test_abort.py
+++ b/src/backend/joanie/tests/core/api/order/test_abort.py
@@ -1,4 +1,5 @@
 """Tests for the Order abort API."""
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/order/test_cancel.py b/src/backend/joanie/tests/core/api/order/test_cancel.py
index 077a6b051..3524c057d 100644
--- a/src/backend/joanie/tests/core/api/order/test_cancel.py
+++ b/src/backend/joanie/tests/core/api/order/test_cancel.py
@@ -1,4 +1,5 @@
 """Tests for the Order cancel API."""
+
 from http import HTTPStatus
 
 from django.core.cache import cache
diff --git a/src/backend/joanie/tests/core/api/order/test_create.py b/src/backend/joanie/tests/core/api/order/test_create.py
index 250b363bc..74ac70e24 100644
--- a/src/backend/joanie/tests/core/api/order/test_create.py
+++ b/src/backend/joanie/tests/core/api/order/test_create.py
@@ -1,4 +1,5 @@
 """Tests for the Order create API."""
+
 # pylint: disable=too-many-lines
 import random
 import uuid
diff --git a/src/backend/joanie/tests/core/api/order/test_delete.py b/src/backend/joanie/tests/core/api/order/test_delete.py
index 65486cacf..c6df60c85 100644
--- a/src/backend/joanie/tests/core/api/order/test_delete.py
+++ b/src/backend/joanie/tests/core/api/order/test_delete.py
@@ -1,4 +1,5 @@
 """Tests for the Order delete API."""
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/api/order/test_invoice.py b/src/backend/joanie/tests/core/api/order/test_invoice.py
index 264058d19..6cd052fc2 100644
--- a/src/backend/joanie/tests/core/api/order/test_invoice.py
+++ b/src/backend/joanie/tests/core/api/order/test_invoice.py
@@ -1,4 +1,5 @@
 """Tests for the Order invoice API."""
+
 from http import HTTPStatus
 from io import BytesIO
 
diff --git a/src/backend/joanie/tests/core/api/order/test_read_detail.py b/src/backend/joanie/tests/core/api/order/test_read_detail.py
index 3e20da400..c2e2f3480 100644
--- a/src/backend/joanie/tests/core/api/order/test_read_detail.py
+++ b/src/backend/joanie/tests/core/api/order/test_read_detail.py
@@ -1,4 +1,5 @@
 """Tests for the Order read detail API."""
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/order/test_read_list.py b/src/backend/joanie/tests/core/api/order/test_read_list.py
index 2400167d2..b04c4b087 100644
--- a/src/backend/joanie/tests/core/api/order/test_read_list.py
+++ b/src/backend/joanie/tests/core/api/order/test_read_list.py
@@ -1,4 +1,5 @@
 """Tests for the Order read list API."""
+
 # pylint: disable=too-many-lines
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/api/order/test_submit.py b/src/backend/joanie/tests/core/api/order/test_submit.py
index fe4c550b0..242146f70 100644
--- a/src/backend/joanie/tests/core/api/order/test_submit.py
+++ b/src/backend/joanie/tests/core/api/order/test_submit.py
@@ -1,4 +1,5 @@
 """Tests for the Order submit API."""
+
 import random
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/api/order/test_submit_for_signature.py b/src/backend/joanie/tests/core/api/order/test_submit_for_signature.py
index 4f13243ff..6ad8689a8 100644
--- a/src/backend/joanie/tests/core/api/order/test_submit_for_signature.py
+++ b/src/backend/joanie/tests/core/api/order/test_submit_for_signature.py
@@ -1,4 +1,5 @@
 """Tests for the Order submit for signature API."""
+
 import json
 import random
 from datetime import timedelta
diff --git a/src/backend/joanie/tests/core/api/order/test_update.py b/src/backend/joanie/tests/core/api/order/test_update.py
index fa211d745..3582353e3 100644
--- a/src/backend/joanie/tests/core/api/order/test_update.py
+++ b/src/backend/joanie/tests/core/api/order/test_update.py
@@ -1,4 +1,5 @@
 """Tests for the Order update API."""
+
 import json
 import random
 import uuid
diff --git a/src/backend/joanie/tests/core/api/order/test_validate.py b/src/backend/joanie/tests/core/api/order/test_validate.py
index 427fa52a3..335727431 100644
--- a/src/backend/joanie/tests/core/api/order/test_validate.py
+++ b/src/backend/joanie/tests/core/api/order/test_validate.py
@@ -1,4 +1,5 @@
 """Tests for the Order validate API."""
+
 from http import HTTPStatus
 
 from django.core.cache import cache
diff --git a/src/backend/joanie/tests/core/api/organizations/test_api_organization_accesses.py b/src/backend/joanie/tests/core/api/organizations/test_api_organization_accesses.py
index c495b6af7..d7ec05a7f 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_api_organization_accesses.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_api_organization_accesses.py
@@ -1,6 +1,7 @@
 """
 Tests organization access API endpoints in Joanie's core app.
 """
+
 import random
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/api/organizations/test_api_organizations_contract.py b/src/backend/joanie/tests/core/api/organizations/test_api_organizations_contract.py
index 7537a9170..02f5555a3 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_api_organizations_contract.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_api_organizations_contract.py
@@ -1,5 +1,6 @@
 # pylint: disable=duplicate-code
 """Test suite for the Organizations Contract API"""
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/organizations/test_api_organizations_course_product_relations.py b/src/backend/joanie/tests/core/api/organizations/test_api_organizations_course_product_relations.py
index 012457791..344b5b783 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_api_organizations_course_product_relations.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_api_organizations_course_product_relations.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization's CourseProductRelation API endpoint.
 """
+
 from http import HTTPStatus
 
 from joanie.core import factories, models
diff --git a/src/backend/joanie/tests/core/api/organizations/test_api_organizations_courses.py b/src/backend/joanie/tests/core/api/organizations/test_api_organizations_courses.py
index 1e7cba461..7f8e63792 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_api_organizations_courses.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_api_organizations_courses.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization's courses API endpoint.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/api/organizations/test_contracts_signature_link.py b/src/backend/joanie/tests/core/api/organizations/test_contracts_signature_link.py
index 97ce6d994..99a413fb2 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_contracts_signature_link.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_contracts_signature_link.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization Contracts signature link API endpoint.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/api/organizations/test_create.py b/src/backend/joanie/tests/core/api/organizations/test_create.py
index 871aa39d1..a4040c05f 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_create.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_create.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization Create API endpoint.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/api/organizations/test_delete.py b/src/backend/joanie/tests/core/api/organizations/test_delete.py
index 8f7f4559b..7f1a970da 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_delete.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_delete.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization delete API endpoint.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/api/organizations/test_list.py b/src/backend/joanie/tests/core/api/organizations/test_list.py
index be444f1e6..11300d911 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_list.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_list.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization list API endpoint.
 """
+
 import uuid
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/api/organizations/test_retrieve.py b/src/backend/joanie/tests/core/api/organizations/test_retrieve.py
index 456e1dca3..52caa1119 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_retrieve.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_retrieve.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization retrieve API endpoint.
 """
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/api/organizations/test_update.py b/src/backend/joanie/tests/core/api/organizations/test_update.py
index 4f49f3e93..bee7fe436 100644
--- a/src/backend/joanie/tests/core/api/organizations/test_update.py
+++ b/src/backend/joanie/tests/core/api/organizations/test_update.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization update API endpoint.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/api/remote_endpoints/course_run/test_course_run.py b/src/backend/joanie/tests/core/api/remote_endpoints/course_run/test_course_run.py
index 35fb95992..ef3caf051 100644
--- a/src/backend/joanie/tests/core/api/remote_endpoints/course_run/test_course_run.py
+++ b/src/backend/joanie/tests/core/api/remote_endpoints/course_run/test_course_run.py
@@ -1,4 +1,5 @@
 """Test suite for remote API endpoints on course run."""
+
 from datetime import timedelta
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/debug/test_debug_urls_template_preview.py b/src/backend/joanie/tests/core/debug/test_debug_urls_template_preview.py
index bb9495582..8ea922afd 100644
--- a/src/backend/joanie/tests/core/debug/test_debug_urls_template_preview.py
+++ b/src/backend/joanie/tests/core/debug/test_debug_urls_template_preview.py
@@ -7,6 +7,7 @@
 If we don't create two distinct classes, the reload of urls configuration were not reflecting the
 DEBUG setting value, and some routes were available when they should not be.
 """
+
 from http import HTTPStatus
 
 from django.core.cache import cache
diff --git a/src/backend/joanie/tests/core/test_admin_course.py b/src/backend/joanie/tests/core/test_admin_course.py
index a9649dc7b..aac6d36e5 100644
--- a/src/backend/joanie/tests/core/test_admin_course.py
+++ b/src/backend/joanie/tests/core/test_admin_course.py
@@ -1,6 +1,7 @@
 """
 Test suite for courses admin pages
 """
+
 from http import HTTPStatus
 
 from django.conf import settings
diff --git a/src/backend/joanie/tests/core/test_admin_order.py b/src/backend/joanie/tests/core/test_admin_order.py
index 2bb6d5f7b..ff07ae051 100644
--- a/src/backend/joanie/tests/core/test_admin_order.py
+++ b/src/backend/joanie/tests/core/test_admin_order.py
@@ -1,6 +1,7 @@
 """
 Test suite for orders admin pages
 """
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_admin_product.py b/src/backend/joanie/tests/core/test_admin_product.py
index 420d519b2..cf4d41866 100644
--- a/src/backend/joanie/tests/core/test_admin_product.py
+++ b/src/backend/joanie/tests/core/test_admin_product.py
@@ -1,6 +1,7 @@
 """
 Test suite for products admin pages
 """
+
 import random
 import uuid
 from http import HTTPStatus
diff --git a/src/backend/joanie/tests/core/test_api_address.py b/src/backend/joanie/tests/core/test_api_address.py
index 644de1a37..ea87fcc8c 100644
--- a/src/backend/joanie/tests/core/test_api_address.py
+++ b/src/backend/joanie/tests/core/test_api_address.py
@@ -1,6 +1,7 @@
 """
 Test suite for addresses API
 """
+
 import json
 import uuid
 from http import HTTPStatus
diff --git a/src/backend/joanie/tests/core/test_api_admin_certificate_definitions.py b/src/backend/joanie/tests/core/test_api_admin_certificate_definitions.py
index 7ea989953..0bb48efca 100644
--- a/src/backend/joanie/tests/core/test_api_admin_certificate_definitions.py
+++ b/src/backend/joanie/tests/core/test_api_admin_certificate_definitions.py
@@ -1,6 +1,7 @@
 """
 Test suite for Certificate definition Admin API.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_contract_definitions.py b/src/backend/joanie/tests/core/test_api_admin_contract_definitions.py
index fa473eb22..62e47a3e5 100644
--- a/src/backend/joanie/tests/core/test_api_admin_contract_definitions.py
+++ b/src/backend/joanie/tests/core/test_api_admin_contract_definitions.py
@@ -1,6 +1,7 @@
 """
 Test suite for Contract definition Admin API.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_course_access.py b/src/backend/joanie/tests/core/test_api_admin_course_access.py
index 10684a77f..ce57a44fa 100644
--- a/src/backend/joanie/tests/core/test_api_admin_course_access.py
+++ b/src/backend/joanie/tests/core/test_api_admin_course_access.py
@@ -1,6 +1,7 @@
 """
 Test suite for CourseAccess Admin API.
 """
+
 import uuid
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_course_runs.py b/src/backend/joanie/tests/core/test_api_admin_course_runs.py
index 7b19060ff..77c81e34a 100644
--- a/src/backend/joanie/tests/core/test_api_admin_course_runs.py
+++ b/src/backend/joanie/tests/core/test_api_admin_course_runs.py
@@ -1,6 +1,7 @@
 """
 Test suite for Course run Admin API.
 """
+
 import random
 import uuid
 from datetime import datetime, timedelta, timezone
diff --git a/src/backend/joanie/tests/core/test_api_admin_courses.py b/src/backend/joanie/tests/core/test_api_admin_courses.py
index 3fd87a4c2..2319bc550 100644
--- a/src/backend/joanie/tests/core/test_api_admin_courses.py
+++ b/src/backend/joanie/tests/core/test_api_admin_courses.py
@@ -1,6 +1,7 @@
 """
 Test suite for Course Admin API.
 """
+
 import datetime
 import random
 import uuid
diff --git a/src/backend/joanie/tests/core/test_api_admin_order_group.py b/src/backend/joanie/tests/core/test_api_admin_order_group.py
index 73529d3b2..285ac7937 100644
--- a/src/backend/joanie/tests/core/test_api_admin_order_group.py
+++ b/src/backend/joanie/tests/core/test_api_admin_order_group.py
@@ -1,6 +1,7 @@
 """
 Test suite for OrderGroup Admin API.
 """
+
 from http import HTTPStatus
 from operator import itemgetter
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_orders.py b/src/backend/joanie/tests/core/test_api_admin_orders.py
index 3a9a4a257..f58f7d243 100644
--- a/src/backend/joanie/tests/core/test_api_admin_orders.py
+++ b/src/backend/joanie/tests/core/test_api_admin_orders.py
@@ -1,4 +1,5 @@
 """Test suite for the admin orders API endpoints."""
+
 import uuid
 from decimal import Decimal as D
 from http import HTTPStatus
diff --git a/src/backend/joanie/tests/core/test_api_admin_organization_access.py b/src/backend/joanie/tests/core/test_api_admin_organization_access.py
index 61e7a8af1..b77bb8e02 100644
--- a/src/backend/joanie/tests/core/test_api_admin_organization_access.py
+++ b/src/backend/joanie/tests/core/test_api_admin_organization_access.py
@@ -1,6 +1,7 @@
 """
 Test suite for OrganizationAccess Admin API.
 """
+
 import uuid
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_organization_addresses.py b/src/backend/joanie/tests/core/test_api_admin_organization_addresses.py
index 26b388f94..a1eeffa80 100644
--- a/src/backend/joanie/tests/core/test_api_admin_organization_addresses.py
+++ b/src/backend/joanie/tests/core/test_api_admin_organization_addresses.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization Address Admin API endpoints.
 """
+
 import uuid
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_organizations.py b/src/backend/joanie/tests/core/test_api_admin_organizations.py
index 22595baee..5a400c47d 100755
--- a/src/backend/joanie/tests/core/test_api_admin_organizations.py
+++ b/src/backend/joanie/tests/core/test_api_admin_organizations.py
@@ -1,6 +1,7 @@
 """
 Test suite for Organization Admin API.
 """
+
 import random
 import re
 from http import HTTPStatus
diff --git a/src/backend/joanie/tests/core/test_api_admin_products.py b/src/backend/joanie/tests/core/test_api_admin_products.py
index 003de0d76..32cf022d0 100644
--- a/src/backend/joanie/tests/core/test_api_admin_products.py
+++ b/src/backend/joanie/tests/core/test_api_admin_products.py
@@ -1,6 +1,7 @@
 """
 Test suite for Product Admin API.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_admin_users.py b/src/backend/joanie/tests/core/test_api_admin_users.py
index 17a9ca899..96932ac3f 100644
--- a/src/backend/joanie/tests/core/test_api_admin_users.py
+++ b/src/backend/joanie/tests/core/test_api_admin_users.py
@@ -1,6 +1,7 @@
 """
 Test suite for User Admin API.
 """
+
 import random
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/core/test_api_base.py b/src/backend/joanie/tests/core/test_api_base.py
index 3247dfa8f..d72cc2254 100644
--- a/src/backend/joanie/tests/core/test_api_base.py
+++ b/src/backend/joanie/tests/core/test_api_base.py
@@ -1,6 +1,7 @@
 """
 Test suite for BaseTest class
 """
+
 from datetime import datetime, timedelta
 
 from joanie.core import factories
diff --git a/src/backend/joanie/tests/core/test_api_certificate.py b/src/backend/joanie/tests/core/test_api_certificate.py
index 4a234acdd..6d0480291 100644
--- a/src/backend/joanie/tests/core/test_api_certificate.py
+++ b/src/backend/joanie/tests/core/test_api_certificate.py
@@ -1,4 +1,5 @@
 """Tests for the Certificate API"""
+
 import uuid
 from http import HTTPStatus
 from io import BytesIO
diff --git a/src/backend/joanie/tests/core/test_api_contract.py b/src/backend/joanie/tests/core/test_api_contract.py
index 36f2d9f78..c909af7b2 100644
--- a/src/backend/joanie/tests/core/test_api_contract.py
+++ b/src/backend/joanie/tests/core/test_api_contract.py
@@ -1,4 +1,5 @@
 """Test suite for the Contract API"""
+
 import json
 import random
 from http import HTTPStatus
diff --git a/src/backend/joanie/tests/core/test_api_contract_definitions.py b/src/backend/joanie/tests/core/test_api_contract_definitions.py
index 4221e0085..6803e9ff8 100644
--- a/src/backend/joanie/tests/core/test_api_contract_definitions.py
+++ b/src/backend/joanie/tests/core/test_api_contract_definitions.py
@@ -1,6 +1,7 @@
 """
 Test suite for Contract Definition API.
 """
+
 from http import HTTPStatus
 from io import BytesIO
 
diff --git a/src/backend/joanie/tests/core/test_api_course.py b/src/backend/joanie/tests/core/test_api_course.py
index 3e921b201..17e036081 100644
--- a/src/backend/joanie/tests/core/test_api_course.py
+++ b/src/backend/joanie/tests/core/test_api_course.py
@@ -1,6 +1,7 @@
 """
 Test suite for Course API endpoint.
 """
+
 import random
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/test_api_course_accesses.py b/src/backend/joanie/tests/core/test_api_course_accesses.py
index a16b67bfc..d444870eb 100644
--- a/src/backend/joanie/tests/core/test_api_course_accesses.py
+++ b/src/backend/joanie/tests/core/test_api_course_accesses.py
@@ -1,6 +1,7 @@
 """
 Tests course access API endpoints in Joanie's core app.
 """
+
 import random
 from http import HTTPStatus
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/test_api_course_product_relations.py b/src/backend/joanie/tests/core/test_api_course_product_relations.py
index fdac4647a..07f65e8fc 100644
--- a/src/backend/joanie/tests/core/test_api_course_product_relations.py
+++ b/src/backend/joanie/tests/core/test_api_course_product_relations.py
@@ -1,5 +1,6 @@
 # pylint: disable=too-many-lines
 """Test suite for the Course Product Relation API."""
+
 import random
 import uuid
 from http import HTTPStatus
diff --git a/src/backend/joanie/tests/core/test_api_course_run.py b/src/backend/joanie/tests/core/test_api_course_run.py
index d4127503a..b56187c93 100644
--- a/src/backend/joanie/tests/core/test_api_course_run.py
+++ b/src/backend/joanie/tests/core/test_api_course_run.py
@@ -1,4 +1,5 @@
 """Test suite for the CourseRun API"""
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_api_course_wishes.py b/src/backend/joanie/tests/core/test_api_course_wishes.py
index 0fb1bd20e..3a1008ff7 100644
--- a/src/backend/joanie/tests/core/test_api_course_wishes.py
+++ b/src/backend/joanie/tests/core/test_api_course_wishes.py
@@ -1,6 +1,7 @@
 """
 Test suite for wish API
 """
+
 from http import HTTPStatus
 
 import arrow
diff --git a/src/backend/joanie/tests/core/test_api_courses_contract.py b/src/backend/joanie/tests/core/test_api_courses_contract.py
index 67fd9b813..9525bad73 100644
--- a/src/backend/joanie/tests/core/test_api_courses_contract.py
+++ b/src/backend/joanie/tests/core/test_api_courses_contract.py
@@ -1,5 +1,6 @@
 # pylint: disable=duplicate-code
 """Test suite for the Courses Contract API"""
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_api_courses_order.py b/src/backend/joanie/tests/core/test_api_courses_order.py
index 2b96956ef..00b011696 100644
--- a/src/backend/joanie/tests/core/test_api_courses_order.py
+++ b/src/backend/joanie/tests/core/test_api_courses_order.py
@@ -1,4 +1,5 @@
 """Test suite for nested Order viewset on Courses"""
+
 from http import HTTPStatus
 from uuid import uuid4
 
diff --git a/src/backend/joanie/tests/core/test_api_enrollment.py b/src/backend/joanie/tests/core/test_api_enrollment.py
index 3cc9b7ba7..1a202379e 100644
--- a/src/backend/joanie/tests/core/test_api_enrollment.py
+++ b/src/backend/joanie/tests/core/test_api_enrollment.py
@@ -1,4 +1,5 @@
 """Tests for the Enrollment API."""
+
 # pylint: disable=too-many-lines
 import itertools
 import json
diff --git a/src/backend/joanie/tests/core/test_api_users.py b/src/backend/joanie/tests/core/test_api_users.py
index 75d940430..2cfbe2e59 100644
--- a/src/backend/joanie/tests/core/test_api_users.py
+++ b/src/backend/joanie/tests/core/test_api_users.py
@@ -1,6 +1,7 @@
 """
 Test suite for User API.
 """
+
 from http import HTTPStatus
 
 from joanie.core import factories
diff --git a/src/backend/joanie/tests/core/test_authentication_delegated_jwt_authentication.py b/src/backend/joanie/tests/core/test_authentication_delegated_jwt_authentication.py
index 5758cb510..5cebf3d2c 100644
--- a/src/backend/joanie/tests/core/test_authentication_delegated_jwt_authentication.py
+++ b/src/backend/joanie/tests/core/test_authentication_delegated_jwt_authentication.py
@@ -1,6 +1,7 @@
 """
 Unit tests for the DelegatedJWTAuthentication backend.
 """
+
 from joanie.core import factories, models
 from joanie.core.authentication import DelegatedJWTAuthentication
 from joanie.tests.base import BaseAPITestCase
diff --git a/src/backend/joanie/tests/core/test_commands_generate_certificates.py b/src/backend/joanie/tests/core/test_commands_generate_certificates.py
index 1e1d0ce83..6eb556319 100644
--- a/src/backend/joanie/tests/core/test_commands_generate_certificates.py
+++ b/src/backend/joanie/tests/core/test_commands_generate_certificates.py
@@ -1,4 +1,5 @@
 """Test suite for the management command 'generate_certificates'"""
+
 import uuid
 
 from django.core.management import call_command
diff --git a/src/backend/joanie/tests/core/test_commands_synchronize_course_runs.py b/src/backend/joanie/tests/core/test_commands_synchronize_course_runs.py
index 41a10cd56..c4b594685 100644
--- a/src/backend/joanie/tests/core/test_commands_synchronize_course_runs.py
+++ b/src/backend/joanie/tests/core/test_commands_synchronize_course_runs.py
@@ -1,4 +1,5 @@
 """Test suite for the management command `synchronize_course_runs`."""
+
 import random
 import uuid
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/test_factories_course_run.py b/src/backend/joanie/tests/core/test_factories_course_run.py
index a00a49fec..3e2ec63f6 100644
--- a/src/backend/joanie/tests/core/test_factories_course_run.py
+++ b/src/backend/joanie/tests/core/test_factories_course_run.py
@@ -1,4 +1,5 @@
 """Test suite for the CourseRunFactory."""
+
 import random
 from datetime import timedelta
 
diff --git a/src/backend/joanie/tests/core/test_fields_iso8601_duration_field.py b/src/backend/joanie/tests/core/test_fields_iso8601_duration_field.py
index a973da318..cc303161a 100644
--- a/src/backend/joanie/tests/core/test_fields_iso8601_duration_field.py
+++ b/src/backend/joanie/tests/core/test_fields_iso8601_duration_field.py
@@ -1,4 +1,5 @@
 """Test suite for the ISO8601DurationField for serializers"""
+
 from datetime import timedelta
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_helpers.py b/src/backend/joanie/tests/core/test_helpers.py
index 4d68ee914..4c47d4e0c 100644
--- a/src/backend/joanie/tests/core/test_helpers.py
+++ b/src/backend/joanie/tests/core/test_helpers.py
@@ -1,4 +1,5 @@
 """Joanie core helpers tests suite"""
+
 from unittest import mock
 
 from django.test.testcases import TestCase
diff --git a/src/backend/joanie/tests/core/test_models_address.py b/src/backend/joanie/tests/core/test_models_address.py
index fe2e1b7c1..4c393e62c 100644
--- a/src/backend/joanie/tests/core/test_models_address.py
+++ b/src/backend/joanie/tests/core/test_models_address.py
@@ -1,6 +1,7 @@
 """
 Test suite for accounts models for users and organizations.
 """
+
 from django.core.exceptions import ValidationError
 from django.db import IntegrityError
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_models_certificate.py b/src/backend/joanie/tests/core/test_models_certificate.py
index bf76d28d0..47017b5f0 100644
--- a/src/backend/joanie/tests/core/test_models_certificate.py
+++ b/src/backend/joanie/tests/core/test_models_certificate.py
@@ -1,4 +1,5 @@
 """Test suite for Certificate Model"""
+
 from django.conf import settings
 from django.test import TestCase
 
diff --git a/src/backend/joanie/tests/core/test_models_contract.py b/src/backend/joanie/tests/core/test_models_contract.py
index 278397a89..4c391c429 100644
--- a/src/backend/joanie/tests/core/test_models_contract.py
+++ b/src/backend/joanie/tests/core/test_models_contract.py
@@ -1,4 +1,5 @@
 """Tests for the Contract Model"""
+
 from datetime import datetime, timedelta
 from zoneinfo import ZoneInfo
 
diff --git a/src/backend/joanie/tests/core/test_models_contract_definition.py b/src/backend/joanie/tests/core/test_models_contract_definition.py
index 8efa9ac39..fff1e901e 100644
--- a/src/backend/joanie/tests/core/test_models_contract_definition.py
+++ b/src/backend/joanie/tests/core/test_models_contract_definition.py
@@ -1,4 +1,5 @@
 """Tests for the Contract Definition Model"""
+
 from django.test import TestCase
 
 from joanie.core import factories
diff --git a/src/backend/joanie/tests/core/test_models_course.py b/src/backend/joanie/tests/core/test_models_course.py
index 7197f9596..9ada6244e 100644
--- a/src/backend/joanie/tests/core/test_models_course.py
+++ b/src/backend/joanie/tests/core/test_models_course.py
@@ -1,6 +1,7 @@
 """
 Test suite for course models
 """
+
 from datetime import timedelta
 
 from django.contrib.auth.models import AnonymousUser
diff --git a/src/backend/joanie/tests/core/test_models_course_access.py b/src/backend/joanie/tests/core/test_models_course_access.py
index f5a050493..a8f4cfa7c 100644
--- a/src/backend/joanie/tests/core/test_models_course_access.py
+++ b/src/backend/joanie/tests/core/test_models_course_access.py
@@ -1,6 +1,7 @@
 """
 Test suite for course access models
 """
+
 from django.contrib.auth.models import AnonymousUser
 from django.core.exceptions import ValidationError
 
diff --git a/src/backend/joanie/tests/core/test_models_course_product_relation.py b/src/backend/joanie/tests/core/test_models_course_product_relation.py
index ce8da2be4..e30141bd6 100644
--- a/src/backend/joanie/tests/core/test_models_course_product_relation.py
+++ b/src/backend/joanie/tests/core/test_models_course_product_relation.py
@@ -1,6 +1,7 @@
 """
 Test suite for CourseProductRelation model
 """
+
 from django.test import TestCase
 
 from joanie.core import factories
diff --git a/src/backend/joanie/tests/core/test_models_course_run.py b/src/backend/joanie/tests/core/test_models_course_run.py
index 6a57d99e9..207105725 100644
--- a/src/backend/joanie/tests/core/test_models_course_run.py
+++ b/src/backend/joanie/tests/core/test_models_course_run.py
@@ -1,6 +1,7 @@
 """
 Test suite for order models
 """
+
 import random
 from datetime import datetime, timedelta, timezone
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/test_models_enrollment.py b/src/backend/joanie/tests/core/test_models_enrollment.py
index 4db2ae905..3e08b2e86 100644
--- a/src/backend/joanie/tests/core/test_models_enrollment.py
+++ b/src/backend/joanie/tests/core/test_models_enrollment.py
@@ -1,6 +1,7 @@
 """
 Test suite for enrollment models
 """
+
 from datetime import timedelta
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_models_order.py b/src/backend/joanie/tests/core/test_models_order.py
index 8643f2d96..93627bb6f 100644
--- a/src/backend/joanie/tests/core/test_models_order.py
+++ b/src/backend/joanie/tests/core/test_models_order.py
@@ -1,6 +1,7 @@
 """
 Test suite for order models
 """
+
 # pylint: disable=too-many-lines,too-many-public-methods
 import json
 import random
@@ -1253,9 +1254,10 @@ def test_models_order_submit_for_signature_fails_when_the_product_has_no_contrac
             product=factories.ProductFactory(contract_definition=None),
         )
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             order.submit_for_signature(user=user)
 
         self.assertEqual(
@@ -1296,9 +1298,10 @@ def test_models_order_submit_for_signature_fails_because_order_is_not_state_vali
             product__contract_definition=factories.ContractDefinitionFactory(),
         )
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             order.submit_for_signature(user=user)
 
         self.assertEqual(
@@ -1530,9 +1533,10 @@ def test_models_order_submit_for_signature_but_contract_is_already_signed_should
             organization_signed_on=now,
         )
 
-        with self.assertRaises(PermissionDenied) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(PermissionDenied) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             order.submit_for_signature(user=user)
 
         self.assertEqual(
diff --git a/src/backend/joanie/tests/core/test_models_order_enroll_user_to_course_run.py b/src/backend/joanie/tests/core/test_models_order_enroll_user_to_course_run.py
index 2c90c0e71..6383567e4 100644
--- a/src/backend/joanie/tests/core/test_models_order_enroll_user_to_course_run.py
+++ b/src/backend/joanie/tests/core/test_models_order_enroll_user_to_course_run.py
@@ -1,6 +1,7 @@
 """
 Test suite the `enroll_user_to_course_run` method on Order model
 """
+
 import random
 
 from django.test import RequestFactory, TestCase
diff --git a/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_certificate_product.py b/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_certificate_product.py
index 0f47d2b52..798d6d1a2 100644
--- a/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_certificate_product.py
+++ b/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_certificate_product.py
@@ -1,6 +1,7 @@
 """
 Test suite for order models: `get_or_generate_certificate` method for a certificate product
 """
+
 from datetime import timedelta
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_credential_product.py b/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_credential_product.py
index d7640d3b8..14826f28f 100644
--- a/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_credential_product.py
+++ b/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_credential_product.py
@@ -1,6 +1,7 @@
 """
 Test suite for order models: `get_or_generate_certificate` method for a credential product
 """
+
 from datetime import timedelta
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_enrollment_product.py b/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_enrollment_product.py
index aa36c8f8e..f70e5db8c 100644
--- a/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_enrollment_product.py
+++ b/src/backend/joanie/tests/core/test_models_order_get_or_generate_certificate_for_enrollment_product.py
@@ -1,6 +1,7 @@
 """
 Test suite for order model: `get_or_generate_certificate` method for an enrollment product
 """
+
 from datetime import timedelta
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_models_order_group.py b/src/backend/joanie/tests/core/test_models_order_group.py
index 8d431ab5d..803fa6162 100644
--- a/src/backend/joanie/tests/core/test_models_order_group.py
+++ b/src/backend/joanie/tests/core/test_models_order_group.py
@@ -1,6 +1,7 @@
 """
 Test suite for OrderGroup model
 """
+
 from django.test import TestCase
 
 from joanie.core import factories
diff --git a/src/backend/joanie/tests/core/test_models_organization.py b/src/backend/joanie/tests/core/test_models_organization.py
index 5f6d74ac9..0700c2d37 100644
--- a/src/backend/joanie/tests/core/test_models_organization.py
+++ b/src/backend/joanie/tests/core/test_models_organization.py
@@ -1,6 +1,7 @@
 """
 Test suite for organization models
 """
+
 import uuid
 
 from django.contrib.auth.models import AnonymousUser
diff --git a/src/backend/joanie/tests/core/test_models_organization_access.py b/src/backend/joanie/tests/core/test_models_organization_access.py
index ea0ae2297..d3b266240 100644
--- a/src/backend/joanie/tests/core/test_models_organization_access.py
+++ b/src/backend/joanie/tests/core/test_models_organization_access.py
@@ -1,6 +1,7 @@
 """
 Test suite for organization access models
 """
+
 from django.contrib.auth.models import AnonymousUser
 from django.core.exceptions import ValidationError
 
diff --git a/src/backend/joanie/tests/core/test_models_product.py b/src/backend/joanie/tests/core/test_models_product.py
index 78b449600..aecca271f 100644
--- a/src/backend/joanie/tests/core/test_models_product.py
+++ b/src/backend/joanie/tests/core/test_models_product.py
@@ -1,6 +1,7 @@
 """
 Test suite for products models
 """
+
 import random
 from datetime import datetime, timedelta, timezone
 from decimal import Decimal as D
diff --git a/src/backend/joanie/tests/core/test_models_product_get_cache_key.py b/src/backend/joanie/tests/core/test_models_product_get_cache_key.py
index 13f283ba3..5316b7ac9 100644
--- a/src/backend/joanie/tests/core/test_models_product_get_cache_key.py
+++ b/src/backend/joanie/tests/core/test_models_product_get_cache_key.py
@@ -1,4 +1,5 @@
 """Product model 'get_cache_key' test suite"""
+
 from datetime import datetime
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/core/test_models_site_config.py b/src/backend/joanie/tests/core/test_models_site_config.py
index bb9a70d09..28a2d9817 100644
--- a/src/backend/joanie/tests/core/test_models_site_config.py
+++ b/src/backend/joanie/tests/core/test_models_site_config.py
@@ -1,4 +1,5 @@
 """Test suite for the SiteConfig model."""
+
 from django.test import TestCase
 
 from joanie.core.factories import SiteConfigFactory
diff --git a/src/backend/joanie/tests/core/test_models_user.py b/src/backend/joanie/tests/core/test_models_user.py
index 8cd80e0b5..84c9f2776 100644
--- a/src/backend/joanie/tests/core/test_models_user.py
+++ b/src/backend/joanie/tests/core/test_models_user.py
@@ -1,4 +1,5 @@
 """Test suite for badge models."""
+
 from django.core.exceptions import ValidationError
 from django.test.utils import override_settings
 
diff --git a/src/backend/joanie/tests/core/test_serializers_cached_model_serializer.py b/src/backend/joanie/tests/core/test_serializers_cached_model_serializer.py
index cfb00f344..27e59feb3 100644
--- a/src/backend/joanie/tests/core/test_serializers_cached_model_serializer.py
+++ b/src/backend/joanie/tests/core/test_serializers_cached_model_serializer.py
@@ -1,4 +1,5 @@
 """Tests for the CachedModelSerializer class."""
+
 from django.test import TestCase, override_settings
 
 from joanie.core import factories, models
diff --git a/src/backend/joanie/tests/core/test_serializers_course_access.py b/src/backend/joanie/tests/core/test_serializers_course_access.py
index 7081e9b2d..af8c98e12 100644
--- a/src/backend/joanie/tests/core/test_serializers_course_access.py
+++ b/src/backend/joanie/tests/core/test_serializers_course_access.py
@@ -1,4 +1,5 @@
 """Test suite for the course access serializer"""
+
 import random
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_serializers_organization_access.py b/src/backend/joanie/tests/core/test_serializers_organization_access.py
index 46a3e28b7..00780ef5c 100644
--- a/src/backend/joanie/tests/core/test_serializers_organization_access.py
+++ b/src/backend/joanie/tests/core/test_serializers_organization_access.py
@@ -1,4 +1,5 @@
 """Test suite for the organization access serializer"""
+
 import random
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_settings.py b/src/backend/joanie/tests/core/test_settings.py
index 8d5f5c8ec..cdd4ba53c 100644
--- a/src/backend/joanie/tests/core/test_settings.py
+++ b/src/backend/joanie/tests/core/test_settings.py
@@ -1,6 +1,7 @@
 """
 Test suite for Joanie's main module
 """
+
 from unittest import mock
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_signals.py b/src/backend/joanie/tests/core/test_signals.py
index 004474772..a6f5c2ac3 100644
--- a/src/backend/joanie/tests/core/test_signals.py
+++ b/src/backend/joanie/tests/core/test_signals.py
@@ -1,4 +1,5 @@
 """Joanie core helpers tests suite"""
+
 import random
 from datetime import datetime
 from unittest import mock
diff --git a/src/backend/joanie/tests/core/test_templatetags_extra_tags.py b/src/backend/joanie/tests/core/test_templatetags_extra_tags.py
index e532db9f4..9ee64bfd3 100644
--- a/src/backend/joanie/tests/core/test_templatetags_extra_tags.py
+++ b/src/backend/joanie/tests/core/test_templatetags_extra_tags.py
@@ -1,6 +1,7 @@
 """
 Test suite for extra template tags of the joanie core app
 """
+
 import random
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_utils_contract.py b/src/backend/joanie/tests/core/test_utils_contract.py
index 4ea1e7b22..0d655f7c1 100644
--- a/src/backend/joanie/tests/core/test_utils_contract.py
+++ b/src/backend/joanie/tests/core/test_utils_contract.py
@@ -1,4 +1,5 @@
 """Test suite to generate a ZIP archive of signed contract PDF files in bytes utility"""
+
 import random
 from io import BytesIO
 from uuid import uuid4
diff --git a/src/backend/joanie/tests/core/test_utils_contract_definition_generate_document_context.py b/src/backend/joanie/tests/core/test_utils_contract_definition_generate_document_context.py
index 36d9286eb..203d4d736 100644
--- a/src/backend/joanie/tests/core/test_utils_contract_definition_generate_document_context.py
+++ b/src/backend/joanie/tests/core/test_utils_contract_definition_generate_document_context.py
@@ -1,4 +1,5 @@
 """Test suite for `generate_document_context` utility"""
+
 from django.contrib.sites.models import Site
 from django.test import TestCase
 
diff --git a/src/backend/joanie/tests/core/test_utils_course_run.py b/src/backend/joanie/tests/core/test_utils_course_run.py
index 0feb91f7b..a176f1fc8 100644
--- a/src/backend/joanie/tests/core/test_utils_course_run.py
+++ b/src/backend/joanie/tests/core/test_utils_course_run.py
@@ -1,4 +1,5 @@
 """Test suite for course run utility methods."""
+
 from datetime import timedelta
 
 from django.core.exceptions import ValidationError
diff --git a/src/backend/joanie/tests/core/test_utils_image_to_base64.py b/src/backend/joanie/tests/core/test_utils_image_to_base64.py
index d4d842c75..d3b05d0cd 100644
--- a/src/backend/joanie/tests/core/test_utils_image_to_base64.py
+++ b/src/backend/joanie/tests/core/test_utils_image_to_base64.py
@@ -1,6 +1,7 @@
 """
 Test suite for utils of the joanie core app
 """
+
 import io
 
 from django.test import TestCase, override_settings
diff --git a/src/backend/joanie/tests/core/test_utils_issuers_certificate_and_degree_generate_document.py b/src/backend/joanie/tests/core/test_utils_issuers_certificate_and_degree_generate_document.py
index a99af65b5..9b5ffb17a 100644
--- a/src/backend/joanie/tests/core/test_utils_issuers_certificate_and_degree_generate_document.py
+++ b/src/backend/joanie/tests/core/test_utils_issuers_certificate_and_degree_generate_document.py
@@ -1,4 +1,5 @@
 """Test suite for utility method to generate document of Certificate/Degree in PDF bytes format."""
+
 from io import BytesIO
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_utils_issuers_contract_definition_generate_document.py b/src/backend/joanie/tests/core/test_utils_issuers_contract_definition_generate_document.py
index 7c9e43a88..09d6a0b4c 100644
--- a/src/backend/joanie/tests/core/test_utils_issuers_contract_definition_generate_document.py
+++ b/src/backend/joanie/tests/core/test_utils_issuers_contract_definition_generate_document.py
@@ -1,4 +1,5 @@
 """Test suite for utility method to generate document of Contract Definition in PDF bytes format"""
+
 from io import BytesIO
 
 from django.contrib.sites.models import Site
diff --git a/src/backend/joanie/tests/core/test_utils_issuers_generate_document.py b/src/backend/joanie/tests/core/test_utils_issuers_generate_document.py
index 2a61edf8e..0e8c87e01 100644
--- a/src/backend/joanie/tests/core/test_utils_issuers_generate_document.py
+++ b/src/backend/joanie/tests/core/test_utils_issuers_generate_document.py
@@ -1,4 +1,5 @@
 """Test suite for `generate_document` utility"""
+
 import textwrap
 from io import BytesIO
 
diff --git a/src/backend/joanie/tests/core/test_utils_issuers_invoice_generate_document.py b/src/backend/joanie/tests/core/test_utils_issuers_invoice_generate_document.py
index d6664515d..ee147b1e0 100644
--- a/src/backend/joanie/tests/core/test_utils_issuers_invoice_generate_document.py
+++ b/src/backend/joanie/tests/core/test_utils_issuers_invoice_generate_document.py
@@ -1,4 +1,5 @@
 """Test suite for utility method to generate an invoice in PDF bytes format."""
+
 from io import BytesIO
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/core/test_utils_webhooks_synchronize_course_runs.py b/src/backend/joanie/tests/core/test_utils_webhooks_synchronize_course_runs.py
index 8d3a436ef..9307056bf 100644
--- a/src/backend/joanie/tests/core/test_utils_webhooks_synchronize_course_runs.py
+++ b/src/backend/joanie/tests/core/test_utils_webhooks_synchronize_course_runs.py
@@ -1,6 +1,7 @@
 """
 Test suite for the "synchronize_course_runs" utility
 """
+
 import json
 import random
 import re
@@ -40,11 +41,14 @@ def test_utils_synchronize_course_runs_no_hooks(self):
 
     def test_utils_synchronize_course_runs_no_course_runs(self):
         """If no course runs are passed as arguments, the method should not make any request."""
-        with override_settings(
-            COURSE_WEB_HOOKS=[
-                {"url": "http://richie.education/webhook", "secret": "abc"},
-            ]
-        ), responses.RequestsMock():
+        with (
+            override_settings(
+                COURSE_WEB_HOOKS=[
+                    {"url": "http://richie.education/webhook", "secret": "abc"},
+                ]
+            ),
+            responses.RequestsMock(),
+        ):
             webhooks.synchronize_course_runs([])
 
         self.assertEqual(len(responses.calls), 0)
@@ -52,12 +56,15 @@ def test_utils_synchronize_course_runs_no_course_runs(self):
     @mock.patch.object(Logger, "info")
     def test_utils_synchronize_course_runs_success(self, mock_info):
         """Course runs passed to the function should get synchronized."""
-        with override_settings(
-            COURSE_WEB_HOOKS=[
-                {"url": "http://richie.education/webhook1", "secret": "abc"},
-                {"url": "http://richie.education/webhook2", "secret": "abc"},
-            ]
-        ), responses.RequestsMock() as rsps:
+        with (
+            override_settings(
+                COURSE_WEB_HOOKS=[
+                    {"url": "http://richie.education/webhook1", "secret": "abc"},
+                    {"url": "http://richie.education/webhook2", "secret": "abc"},
+                ]
+            ),
+            responses.RequestsMock() as rsps,
+        ):
             # Ensure successful response by webhook using "responses":
             rsp = rsps.post(
                 re.compile("http://richie.education/webhook{1}"),
@@ -137,11 +144,14 @@ def test_utils_synchronize_course_runs_success(self, mock_info):
     @mock.patch.object(Logger, "error")
     def test_utils_synchronize_course_runs_failure(self, mock_error):
         """The logger should be called on webhook call failure."""
-        with override_settings(
-            COURSE_WEB_HOOKS=[
-                {"url": "http://richie.education/webhook", "secret": "abc"},
-            ]
-        ), responses.RequestsMock() as rsps:
+        with (
+            override_settings(
+                COURSE_WEB_HOOKS=[
+                    {"url": "http://richie.education/webhook", "secret": "abc"},
+                ]
+            ),
+            responses.RequestsMock() as rsps,
+        ):
             # Simulate webhook failure using "responses":
             rsp = rsps.post(
                 re.compile("http://richie.education/webhook"),
@@ -213,13 +223,16 @@ def test_utils_synchronize_course_runs_retries(self, mock_info, mock_error):
                 "course": "1",
             },
         ]
-        with override_settings(
-            COURSE_WEB_HOOKS=[
-                {"url": "http://richie.education/webhook", "secret": "abc"},
-            ]
-        ), responses.RequestsMock(
-            registry=responses.registries.OrderedRegistry
-        ) as rsps:
+        with (
+            override_settings(
+                COURSE_WEB_HOOKS=[
+                    {"url": "http://richie.education/webhook", "secret": "abc"},
+                ]
+            ),
+            responses.RequestsMock(
+                registry=responses.registries.OrderedRegistry
+            ) as rsps,
+        ):
             # Make webhook fail 3 times before succeeding using "responses"
             url = "http://richie.education/webhook"
             all_rsps = [
@@ -253,11 +266,14 @@ def test_utils_synchronize_course_runs_retries(self, mock_info, mock_error):
     @mock.patch.object(Logger, "error")
     def test_utils_synchronize_course_runs_max_retries_exceeded(self, mock_error):
         """Course runs synchronization supports retries has exceeded max retries."""
-        with override_settings(
-            COURSE_WEB_HOOKS=[
-                {"url": "http://richie.education/webhook", "secret": "abc"},
-            ]
-        ), responses.RequestsMock() as rsps:
+        with (
+            override_settings(
+                COURSE_WEB_HOOKS=[
+                    {"url": "http://richie.education/webhook", "secret": "abc"},
+                ]
+            ),
+            responses.RequestsMock() as rsps,
+        ):
             # Simulate webhook failure using "responses":
             rsp = rsps.post(
                 re.compile("http://richie.education/webhook"),
diff --git a/src/backend/joanie/tests/core/test_views_backoffice_redirect.py b/src/backend/joanie/tests/core/test_views_backoffice_redirect.py
index 794e638a7..b887a30f8 100644
--- a/src/backend/joanie/tests/core/test_views_backoffice_redirect.py
+++ b/src/backend/joanie/tests/core/test_views_backoffice_redirect.py
@@ -1,4 +1,5 @@
 """BackOfficeRedirectView test suite."""
+
 from http import HTTPStatus
 
 from django.test import TestCase, override_settings
diff --git a/src/backend/joanie/tests/core/test_views_certificate_verify.py b/src/backend/joanie/tests/core/test_views_certificate_verify.py
index 70e5220f3..ec78a0690 100644
--- a/src/backend/joanie/tests/core/test_views_certificate_verify.py
+++ b/src/backend/joanie/tests/core/test_views_certificate_verify.py
@@ -1,4 +1,5 @@
 """CertificateVerificationView test suite."""
+
 import uuid
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/demo/test_commands_create_demo.py b/src/backend/joanie/tests/demo/test_commands_create_demo.py
index b2cea592e..f2d6f7038 100644
--- a/src/backend/joanie/tests/demo/test_commands_create_demo.py
+++ b/src/backend/joanie/tests/demo/test_commands_create_demo.py
@@ -1,4 +1,5 @@
 """Test suite for the management command 'create_demo'"""
+
 from unittest import mock
 
 from django.core.management import call_command
diff --git a/src/backend/joanie/tests/demo/test_commands_create_dev_demo.py b/src/backend/joanie/tests/demo/test_commands_create_dev_demo.py
index af26daf25..4d60fecc7 100644
--- a/src/backend/joanie/tests/demo/test_commands_create_dev_demo.py
+++ b/src/backend/joanie/tests/demo/test_commands_create_dev_demo.py
@@ -1,4 +1,5 @@
 """Test suite for the management command 'create_demo'"""
+
 from django.core.management import call_command
 from django.test import TestCase
 from django.test.utils import override_settings
diff --git a/src/backend/joanie/tests/edx_imports/base_test_commands_migrate.py b/src/backend/joanie/tests/edx_imports/base_test_commands_migrate.py
index 809b82d13..b0a7abb27 100644
--- a/src/backend/joanie/tests/edx_imports/base_test_commands_migrate.py
+++ b/src/backend/joanie/tests/edx_imports/base_test_commands_migrate.py
@@ -1,4 +1,5 @@
 """Base test case for the migrate command."""
+
 from django.test import TestCase, override_settings
 
 from joanie.edx_imports.edx_factories import session
diff --git a/src/backend/joanie/tests/edx_imports/test_commands_migrate_course_runs.py b/src/backend/joanie/tests/edx_imports/test_commands_migrate_course_runs.py
index 0bb311f9a..466ca6bb5 100644
--- a/src/backend/joanie/tests/edx_imports/test_commands_migrate_course_runs.py
+++ b/src/backend/joanie/tests/edx_imports/test_commands_migrate_course_runs.py
@@ -1,4 +1,5 @@
 """Tests for the migrate_edx command to import course runs from Open edX."""
+
 from unittest.mock import patch
 
 from django.core.management import call_command
diff --git a/src/backend/joanie/tests/edx_imports/test_edx_database.py b/src/backend/joanie/tests/edx_imports/test_edx_database.py
index 19dad140c..612ea242a 100644
--- a/src/backend/joanie/tests/edx_imports/test_edx_database.py
+++ b/src/backend/joanie/tests/edx_imports/test_edx_database.py
@@ -1,4 +1,5 @@
 """Module for testing the Open edX database class."""
+
 from django.test import TestCase
 
 from joanie.edx_imports.edx_database import OpenEdxDB
diff --git a/src/backend/joanie/tests/edx_imports/test_edx_mongodb.py b/src/backend/joanie/tests/edx_imports/test_edx_mongodb.py
index 1a910f5c3..820b9d65b 100644
--- a/src/backend/joanie/tests/edx_imports/test_edx_mongodb.py
+++ b/src/backend/joanie/tests/edx_imports/test_edx_mongodb.py
@@ -1,4 +1,5 @@
 """Module for testing the edx_mongodb module."""
+
 from unittest.mock import MagicMock, patch
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/lms_handler/test_api_course_run_sync_edx.py b/src/backend/joanie/tests/lms_handler/test_api_course_run_sync_edx.py
index 9a214daa9..1f1d37e83 100644
--- a/src/backend/joanie/tests/lms_handler/test_api_course_run_sync_edx.py
+++ b/src/backend/joanie/tests/lms_handler/test_api_course_run_sync_edx.py
@@ -1,6 +1,7 @@
 """
 Tests for CourseRun web hook.
 """
+
 import json
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/lms_handler/test_backend_dummy.py b/src/backend/joanie/tests/lms_handler/test_backend_dummy.py
index fc7f090fb..9f64ad3a9 100644
--- a/src/backend/joanie/tests/lms_handler/test_backend_dummy.py
+++ b/src/backend/joanie/tests/lms_handler/test_backend_dummy.py
@@ -1,4 +1,5 @@
 """Test suite for the Dummy LMS Backend"""
+
 from datetime import timedelta
 
 from django.core.cache import cache
diff --git a/src/backend/joanie/tests/lms_handler/test_backend_moodle.py b/src/backend/joanie/tests/lms_handler/test_backend_moodle.py
index 3156e54fa..7a525dfe0 100644
--- a/src/backend/joanie/tests/lms_handler/test_backend_moodle.py
+++ b/src/backend/joanie/tests/lms_handler/test_backend_moodle.py
@@ -1,4 +1,5 @@
 """Test suite for the Moodle LMS Backend."""
+
 import random
 from http import HTTPStatus
 from logging import ERROR
@@ -415,9 +416,12 @@ def test_backend_moodle_create_user_error(self):
             status=HTTPStatus.INTERNAL_SERVER_ERROR,
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(MoodleUserCreateException):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(MoodleUserCreateException),
+        ):
             self.backend.create_user(user)
 
         self.assertEqual(
@@ -582,9 +586,12 @@ def test_backend_moodle_set_enrollment_user_error(self):
             status=HTTPStatus.INTERNAL_SERVER_ERROR,
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(EnrollmentError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(EnrollmentError),
+        ):
             self.backend.set_enrollment(enrollment)
 
         self.assertEqual(
@@ -714,9 +721,12 @@ def test_backend_moodle_set_enrollment_unenroll_user_not_found(self):
             },
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(EnrollmentError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(EnrollmentError),
+        ):
             self.backend.set_enrollment(enrollment)
 
         self.assertEqual(
@@ -749,9 +759,12 @@ def test_backend_moodle_set_enrollment_student_role_error(self):
             status=HTTPStatus.INTERNAL_SERVER_ERROR,
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(EnrollmentError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(EnrollmentError),
+        ):
             self.backend.set_enrollment(enrollment)
 
         self.assertEqual(
@@ -797,9 +810,12 @@ def test_backend_moodle_set_enrollment_student_role_not_found(self):
             ],
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(EnrollmentError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(EnrollmentError),
+        ):
             self.backend.set_enrollment(enrollment)
 
         self.assertEqual(
@@ -864,9 +880,12 @@ def test_backend_moodle_set_enrollment_enroll_fail(self):
             body=RequestException("Something went wrong..."),
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(EnrollmentError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(EnrollmentError),
+        ):
             self.backend.set_enrollment(enrollment)
 
         self.assertEqual(
@@ -934,9 +953,12 @@ def test_backend_moodle_set_enrollment_unenroll_fail(self):
             body=RequestException("Something went wrong..."),
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(EnrollmentError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(EnrollmentError),
+        ):
             self.backend.set_enrollment(enrollment)
 
         self.assertEqual(
@@ -1052,9 +1074,12 @@ def test_backend_moodle_get_grades_user_error(self):
             status=HTTPStatus.INTERNAL_SERVER_ERROR,
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(GradeError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(GradeError),
+        ):
             self.backend.get_grades("student", resource_link)
 
         self.assertEqual(
@@ -1091,9 +1116,12 @@ def test_backend_moodle_get_grades_user_not_found(self):
             },
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(GradeError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(GradeError),
+        ):
             self.backend.get_grades("student", resource_link)
 
         self.assertEqual(
@@ -1141,9 +1169,12 @@ def test_backend_moodle_get_grades_fail(self):
             body=RequestException("Something went wrong..."),
         )
 
-        with self.assertLogs(
-            "joanie.lms_handler.backends.moodle", level=ERROR
-        ) as error_logs, self.assertRaises(GradeError):
+        with (
+            self.assertLogs(
+                "joanie.lms_handler.backends.moodle", level=ERROR
+            ) as error_logs,
+            self.assertRaises(GradeError),
+        ):
             self.backend.get_grades("student", resource_link)
 
         self.assertEqual(
diff --git a/src/backend/joanie/tests/lms_handler/test_backend_openedx.py b/src/backend/joanie/tests/lms_handler/test_backend_openedx.py
index 1ac6e840e..8487a69c0 100644
--- a/src/backend/joanie/tests/lms_handler/test_backend_openedx.py
+++ b/src/backend/joanie/tests/lms_handler/test_backend_openedx.py
@@ -1,4 +1,5 @@
 """Test suite for the OpenEdX LMS Backend."""
+
 import json
 import random
 from datetime import timedelta
diff --git a/src/backend/joanie/tests/lms_handler/test_handler.py b/src/backend/joanie/tests/lms_handler/test_handler.py
index 0f7fd699c..6bf11f571 100644
--- a/src/backend/joanie/tests/lms_handler/test_handler.py
+++ b/src/backend/joanie/tests/lms_handler/test_handler.py
@@ -1,4 +1,5 @@
 """Test suite for the LMSHandler class."""
+
 from django.test import TestCase
 from django.test.utils import override_settings
 
diff --git a/src/backend/joanie/tests/payment/base_payment.py b/src/backend/joanie/tests/payment/base_payment.py
index 7953d7df6..ebbc0bf63 100644
--- a/src/backend/joanie/tests/payment/base_payment.py
+++ b/src/backend/joanie/tests/payment/base_payment.py
@@ -1,4 +1,5 @@
 """Common Base Payment backend test"""
+
 from django.core import mail
 from django.test import TestCase
 
diff --git a/src/backend/joanie/tests/payment/test_admin_invoice.py b/src/backend/joanie/tests/payment/test_admin_invoice.py
index c3437ae68..f38998e7d 100644
--- a/src/backend/joanie/tests/payment/test_admin_invoice.py
+++ b/src/backend/joanie/tests/payment/test_admin_invoice.py
@@ -1,4 +1,5 @@
 """Invoice admin test suite"""
+
 from http import HTTPStatus
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/payment/test_api_credit_card.py b/src/backend/joanie/tests/payment/test_api_credit_card.py
index dac87dd5f..66c04292f 100644
--- a/src/backend/joanie/tests/payment/test_api_credit_card.py
+++ b/src/backend/joanie/tests/payment/test_api_credit_card.py
@@ -1,6 +1,7 @@
 """
 Test suite for the Credit Card API
 """
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/payment/test_api_payment.py b/src/backend/joanie/tests/payment/test_api_payment.py
index a10903e6f..7f0013737 100644
--- a/src/backend/joanie/tests/payment/test_api_payment.py
+++ b/src/backend/joanie/tests/payment/test_api_payment.py
@@ -1,4 +1,5 @@
 """Test suite for the payment api"""
+
 from http import HTTPStatus
 from unittest import mock
 
diff --git a/src/backend/joanie/tests/payment/test_backend_base.py b/src/backend/joanie/tests/payment/test_backend_base.py
index 3dddeab36..a3a56f45e 100644
--- a/src/backend/joanie/tests/payment/test_backend_base.py
+++ b/src/backend/joanie/tests/payment/test_backend_base.py
@@ -1,4 +1,5 @@
 """Test suite of the Base Payment backend"""
+
 import smtplib
 from logging import Logger
 from unittest import mock
diff --git a/src/backend/joanie/tests/payment/test_backend_dummy_payment.py b/src/backend/joanie/tests/payment/test_backend_dummy_payment.py
index 529bb5200..460f1c7f9 100644
--- a/src/backend/joanie/tests/payment/test_backend_dummy_payment.py
+++ b/src/backend/joanie/tests/payment/test_backend_dummy_payment.py
@@ -1,4 +1,5 @@
 """Test suite of the Dummy Payment backend"""
+
 import json
 import re
 from logging import Logger
diff --git a/src/backend/joanie/tests/payment/test_backend_payplug.py b/src/backend/joanie/tests/payment/test_backend_payplug.py
index 9c0a43e11..b7ecbc80a 100644
--- a/src/backend/joanie/tests/payment/test_backend_payplug.py
+++ b/src/backend/joanie/tests/payment/test_backend_payplug.py
@@ -1,4 +1,5 @@
 """Test suite of the Payplug backend"""
+
 import re
 from decimal import Decimal as D
 from unittest import mock
diff --git a/src/backend/joanie/tests/payment/test_models_invoice.py b/src/backend/joanie/tests/payment/test_models_invoice.py
index efe8913bc..8d0886949 100644
--- a/src/backend/joanie/tests/payment/test_models_invoice.py
+++ b/src/backend/joanie/tests/payment/test_models_invoice.py
@@ -1,4 +1,5 @@
 """Test suite for the Invoice model."""
+
 import re
 from decimal import Decimal as D
 
diff --git a/src/backend/joanie/tests/payment/test_models_transaction.py b/src/backend/joanie/tests/payment/test_models_transaction.py
index 3b1c23f4f..fe2c68c18 100644
--- a/src/backend/joanie/tests/payment/test_models_transaction.py
+++ b/src/backend/joanie/tests/payment/test_models_transaction.py
@@ -1,4 +1,5 @@
 """Test suite for transaction model"""
+
 from django.db.models import ProtectedError
 from django.test import TestCase
 
diff --git a/src/backend/joanie/tests/signature/backends/lex_persona/test_delete_signing_procedure.py b/src/backend/joanie/tests/signature/backends/lex_persona/test_delete_signing_procedure.py
index 4d92e8d62..3297ee770 100644
--- a/src/backend/joanie/tests/signature/backends/lex_persona/test_delete_signing_procedure.py
+++ b/src/backend/joanie/tests/signature/backends/lex_persona/test_delete_signing_procedure.py
@@ -1,4 +1,5 @@
 """Test suite for the Lex Persona Signature Backend delete_signing_procedure"""
+
 from http import HTTPStatus
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signature_invitation_link.py b/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signature_invitation_link.py
index 3e97e3fbb..e5c97b051 100644
--- a/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signature_invitation_link.py
+++ b/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signature_invitation_link.py
@@ -1,4 +1,5 @@
 """Test suite for the Lex Persona Signature Backend get_signature_invitation_link"""
+
 from http import HTTPStatus
 
 from django.test import TestCase
diff --git a/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signed_file.py b/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signed_file.py
index d3697de4a..88a7d80f3 100644
--- a/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signed_file.py
+++ b/src/backend/joanie/tests/signature/backends/lex_persona/test_get_signed_file.py
@@ -1,4 +1,5 @@
 """Test suite for the Lex Persona Signature Backend get_signed_file"""
+
 from http import HTTPStatus
 
 from django.core.exceptions import ValidationError
diff --git a/src/backend/joanie/tests/signature/backends/lex_persona/test_handle_notification.py b/src/backend/joanie/tests/signature/backends/lex_persona/test_handle_notification.py
index 5ad0657f5..1ed6d3491 100644
--- a/src/backend/joanie/tests/signature/backends/lex_persona/test_handle_notification.py
+++ b/src/backend/joanie/tests/signature/backends/lex_persona/test_handle_notification.py
@@ -1,4 +1,5 @@
 """Test suite for the Lex Persona Signature Backend handle_notification"""
+
 import json
 from datetime import datetime, timedelta
 from http import HTTPStatus
@@ -77,9 +78,10 @@ def test_backend_lex_persona_handle_notification_workflowstarted_unsupported_eve
 
         backend = get_signature_backend()
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
@@ -153,9 +155,10 @@ def test_backend_lex_persona_handle_notification_workflowstopped_unsupported_eve
         )
         backend = get_signature_backend()
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
@@ -197,9 +200,10 @@ def test_backend_lex_persona_handle_notification_incoming_request_body_is_an_emp
         request.__dict__.update(request_data)
         backend = get_signature_backend()
 
-        with self.assertRaises(KeyError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(KeyError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
@@ -237,9 +241,10 @@ def test_backend_lex_persona_handle_notification_body_is_missing_id_key(self):
         request.__dict__.update(request_data)
         backend = get_signature_backend()
 
-        with self.assertRaises(KeyError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(KeyError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
@@ -266,9 +271,10 @@ def test_backend_lex_persona_handle_notification_with_malformed_json_body(self):
         request.__dict__.update(request_data)
         backend = get_signature_backend()
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
@@ -324,9 +330,10 @@ def test_backend_lex_persona_handle_notification_verify_webhook_event_failed_to_
         )
         backend = get_signature_backend()
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
@@ -490,9 +497,10 @@ def test_backend_lex_persona_handle_notification_workflow_finished_event_but_sig
 
         backend = get_signature_backend()
 
-        with self.assertRaises(ValidationError) as context, self.assertLogs(
-            "joanie"
-        ) as logger:
+        with (
+            self.assertRaises(ValidationError) as context,
+            self.assertLogs("joanie") as logger,
+        ):
             backend.handle_notification(request)
 
         self.assertEqual(
diff --git a/src/backend/joanie/tests/signature/backends/lex_persona/test_submit_for_signature.py b/src/backend/joanie/tests/signature/backends/lex_persona/test_submit_for_signature.py
index 6ece3f84f..31227511b 100644
--- a/src/backend/joanie/tests/signature/backends/lex_persona/test_submit_for_signature.py
+++ b/src/backend/joanie/tests/signature/backends/lex_persona/test_submit_for_signature.py
@@ -1,4 +1,5 @@
 """Lex Persona backend test for submit_for_signature."""
+
 from http import HTTPStatus
 
 from django.conf import settings
diff --git a/src/backend/joanie/tests/signature/test_backend_signature_app_config.py b/src/backend/joanie/tests/signature/test_backend_signature_app_config.py
index 9b1721a2f..dbf987acc 100644
--- a/src/backend/joanie/tests/signature/test_backend_signature_app_config.py
+++ b/src/backend/joanie/tests/signature/test_backend_signature_app_config.py
@@ -1,4 +1,5 @@
 """Test suite of the method ready() for Signature AppConfig"""
+
 import random
 
 from django.apps import apps
diff --git a/src/backend/joanie/tests/signature/test_backend_signature_base.py b/src/backend/joanie/tests/signature/test_backend_signature_base.py
index a3f875d9f..c93747e38 100644
--- a/src/backend/joanie/tests/signature/test_backend_signature_base.py
+++ b/src/backend/joanie/tests/signature/test_backend_signature_base.py
@@ -1,4 +1,5 @@
 """Test suite of common methods for Base, to Dummy and Client Signature Backend."""
+
 import random
 from datetime import timedelta
 from unittest import mock
diff --git a/src/backend/joanie/tests/signature/test_backend_signature_dummy.py b/src/backend/joanie/tests/signature/test_backend_signature_dummy.py
index 649fa3fb6..57b6fe407 100644
--- a/src/backend/joanie/tests/signature/test_backend_signature_dummy.py
+++ b/src/backend/joanie/tests/signature/test_backend_signature_dummy.py
@@ -1,4 +1,5 @@
 """Test suite of the DummySignatureBackend"""
+
 import random
 from io import BytesIO
 
diff --git a/src/backend/joanie/tests/signature/test_backend_signature_get_backend.py b/src/backend/joanie/tests/signature/test_backend_signature_get_backend.py
index 8d55a7a1b..f4543976a 100644
--- a/src/backend/joanie/tests/signature/test_backend_signature_get_backend.py
+++ b/src/backend/joanie/tests/signature/test_backend_signature_get_backend.py
@@ -1,4 +1,5 @@
 """get_signature_backend() test suite"""
+
 from django.test import TestCase
 from django.test.utils import override_settings
 
diff --git a/src/backend/joanie/tests/signature/test_commands_generate_zip_archive_of_contracts.py b/src/backend/joanie/tests/signature/test_commands_generate_zip_archive_of_contracts.py
index 675011bb2..ea3a4821d 100644
--- a/src/backend/joanie/tests/signature/test_commands_generate_zip_archive_of_contracts.py
+++ b/src/backend/joanie/tests/signature/test_commands_generate_zip_archive_of_contracts.py
@@ -1,4 +1,5 @@
 """Test suite for the management command `generate_zip_archive_of_contracts`"""
+
 import random
 from io import BytesIO, StringIO
 from uuid import uuid4
diff --git a/src/backend/joanie/tests/swagger/test_openapi_schema.py b/src/backend/joanie/tests/swagger/test_openapi_schema.py
index 309e5e108..056ac71e9 100644
--- a/src/backend/joanie/tests/swagger/test_openapi_schema.py
+++ b/src/backend/joanie/tests/swagger/test_openapi_schema.py
@@ -1,6 +1,7 @@
 """
 Test suite for generated openapi schema.
 """
+
 import json
 from http import HTTPStatus
 
diff --git a/src/backend/joanie/tests/testing_utils.py b/src/backend/joanie/tests/testing_utils.py
index 4ab8cf5e8..defd8d146 100644
--- a/src/backend/joanie/tests/testing_utils.py
+++ b/src/backend/joanie/tests/testing_utils.py
@@ -1,4 +1,5 @@
 """Test utils module."""
+
 import sys
 from importlib import reload
 
diff --git a/src/backend/manage.py b/src/backend/manage.py
index 71ee703d4..f2c41862d 100644
--- a/src/backend/manage.py
+++ b/src/backend/manage.py
@@ -2,6 +2,7 @@
 """
 Joanie's sandbox management script.
 """
+
 import os
 import sys