diff --git a/commerce_coordinator/apps/commercetools/clients.py b/commerce_coordinator/apps/commercetools/clients.py
index 65d37fad..1090ff0d 100644
--- a/commerce_coordinator/apps/commercetools/clients.py
+++ b/commerce_coordinator/apps/commercetools/clients.py
@@ -6,23 +6,15 @@
 import decimal
 import logging
 from types import SimpleNamespace
-from typing import Generic, List, Optional, Tuple, TypeVar, TypedDict, Union
+from typing import Generic, List, Optional, Tuple, TypedDict, TypeVar, Union
 
 import requests
 from commercetools import Client as CTClient
 from commercetools import CommercetoolsError
 from commercetools.platform.models import Customer as CTCustomer
-from commercetools.platform.models import (
-    CustomerChangeEmailAction,
-    CustomerSetCustomFieldAction,
-)
-from commercetools.platform.models import (
-    CustomerSetCustomTypeAction as CTCustomerSetCustomTypeAction,
-)
-from commercetools.platform.models import (
-    CustomerSetFirstNameAction,
-    CustomerSetLastNameAction,
-)
+from commercetools.platform.models import CustomerChangeEmailAction, CustomerSetCustomFieldAction
+from commercetools.platform.models import CustomerSetCustomTypeAction as CTCustomerSetCustomTypeAction
+from commercetools.platform.models import CustomerSetFirstNameAction, CustomerSetLastNameAction
 from commercetools.platform.models import FieldContainer as CTFieldContainer
 from commercetools.platform.models import Money as CTMoney
 from commercetools.platform.models import Order as CTOrder
@@ -30,13 +22,10 @@
     OrderAddReturnInfoAction,
     OrderSetReturnItemCustomTypeAction,
     OrderSetReturnPaymentStateAction,
-    OrderTransitionLineItemStateAction,
+    OrderTransitionLineItemStateAction
 )
 from commercetools.platform.models import Payment as CTPayment
-from commercetools.platform.models import (
-    PaymentAddTransactionAction,
-    PaymentSetTransactionCustomTypeAction,
-)
+from commercetools.platform.models import PaymentAddTransactionAction, PaymentSetTransactionCustomTypeAction
 from commercetools.platform.models import ProductVariant as CTProductVariant
 from commercetools.platform.models import (
     ReturnItemDraft,
@@ -44,36 +33,29 @@
     ReturnShipmentState,
     StateResourceIdentifier,
     TransactionDraft,
-    TransactionType,
+    TransactionType
 )
 from commercetools.platform.models import Type as CTType
 from commercetools.platform.models import TypeDraft as CTTypeDraft
-from commercetools.platform.models import (
-    TypeResourceIdentifier as CTTypeResourceIdentifier,
-)
+from commercetools.platform.models import TypeResourceIdentifier as CTTypeResourceIdentifier
 from commercetools.platform.models.state import State as CTLineItemState
 from django.conf import settings
 from openedx_filters.exceptions import OpenEdxFilterException
 
 from commerce_coordinator.apps.commercetools.catalog_info.constants import (
     DEFAULT_ORDER_EXPANSION,
-    EdXFieldNames,
-)
-from commerce_coordinator.apps.commercetools.catalog_info.foundational_types import (
-    TwoUCustomTypes,
+    EDX_PAYPAL_PAYMENT_INTERFACE_NAME,
+    EDX_STRIPE_PAYMENT_INTERFACE_NAME,
+    EdXFieldNames
 )
+from commerce_coordinator.apps.commercetools.catalog_info.foundational_types import TwoUCustomTypes
 from commerce_coordinator.apps.commercetools.utils import (
     find_refund_transaction,
     handle_commercetools_error,
-    translate_refund_status_to_transaction_status,
+    translate_refund_status_to_transaction_status
 )
 from commerce_coordinator.apps.core.constants import ORDER_HISTORY_PER_SYSTEM_REQ_LIMIT
 
-from commerce_coordinator.apps.commercetools.catalog_info.constants import (
-    EDX_STRIPE_PAYMENT_INTERFACE_NAME,
-    EDX_PAYPAL_PAYMENT_INTERFACE_NAME
-)
-
 logger = logging.getLogger(__name__)
 
 T = TypeVar("T")
diff --git a/commerce_coordinator/apps/commercetools/signals.py b/commerce_coordinator/apps/commercetools/signals.py
index 1f2ddf8f..b568226b 100644
--- a/commerce_coordinator/apps/commercetools/signals.py
+++ b/commerce_coordinator/apps/commercetools/signals.py
@@ -6,14 +6,11 @@
 
 from commerce_coordinator.apps.commercetools.catalog_info.constants import TwoUKeys
 from commerce_coordinator.apps.commercetools.tasks import (
-    refund_from_stripe_task,
     refund_from_paypal_task,
-    update_line_item_state_on_fulfillment_completion,
-)
-from commerce_coordinator.apps.core.signal_helpers import (
-    CoordinatorSignal,
-    log_receiver,
+    refund_from_stripe_task,
+    update_line_item_state_on_fulfillment_completion
 )
+from commerce_coordinator.apps.core.signal_helpers import CoordinatorSignal, log_receiver
 
 logger = logging.getLogger(__name__)
 
diff --git a/commerce_coordinator/apps/commercetools/tasks.py b/commerce_coordinator/apps/commercetools/tasks.py
index 50ec5a63..f775c76f 100644
--- a/commerce_coordinator/apps/commercetools/tasks.py
+++ b/commerce_coordinator/apps/commercetools/tasks.py
@@ -10,10 +10,10 @@
 from django.conf import settings
 
 from commerce_coordinator.apps.commercetools.catalog_info.constants import EDX_PAYPAL_PAYMENT_INTERFACE_NAME
+
 from .clients import CommercetoolsAPIClient
 from .utils import has_full_refund_transaction
 
-
 logger = logging.getLogger(__name__)
 
 stripe.api_key = settings.PAYMENT_PROCESSOR_CONFIG['edx']['stripe']['secret_key']
diff --git a/commerce_coordinator/apps/paypal/views.py b/commerce_coordinator/apps/paypal/views.py
index 5286cfab..fc0c0a30 100644
--- a/commerce_coordinator/apps/paypal/views.py
+++ b/commerce_coordinator/apps/paypal/views.py
@@ -4,26 +4,25 @@
 
 import base64
 import logging
-from urllib.parse import urlparse
 import zlib
+from urllib.parse import urlparse
 
 import requests
 from cryptography import x509
-from rest_framework.permissions import AllowAny
 from cryptography.hazmat.backends import default_backend
 from cryptography.hazmat.primitives import hashes
 from cryptography.hazmat.primitives.asymmetric import padding
 from django.conf import settings
 from rest_framework import status
+from rest_framework.permissions import AllowAny
 from rest_framework.response import Response
-from commerce_coordinator.apps.core.views import SingleInvocationAPIView
-from commerce_coordinator.apps.commercetools.clients import CommercetoolsAPIClient
 
+from commerce_coordinator.apps.commercetools.clients import CommercetoolsAPIClient
+from commerce_coordinator.apps.core.views import SingleInvocationAPIView
 from commerce_coordinator.apps.paypal.signals import payment_refunded_signal
 
 from .models import KeyValueCache
 
-
 logger = logging.getLogger(__name__)
 
 
diff --git a/commerce_coordinator/urls.py b/commerce_coordinator/urls.py
index 6abafd94..9e4fbc79 100644
--- a/commerce_coordinator/urls.py
+++ b/commerce_coordinator/urls.py
@@ -38,9 +38,9 @@
 from commerce_coordinator.apps.frontend_app_ecommerce import urls as unified_orders_urls
 from commerce_coordinator.apps.frontend_app_payment import urls as frontend_app_payment_urls
 from commerce_coordinator.apps.lms import urls as lms_urls
+from commerce_coordinator.apps.paypal import urls as paypal_urls
 from commerce_coordinator.apps.stripe import urls as stripe_urls
 from commerce_coordinator.apps.titan import urls as titan_urls
-from commerce_coordinator.apps.paypal import urls as paypal_urls
 from commerce_coordinator.settings.base import FAVICON_URL
 
 admin.autodiscover()