diff --git a/gso/products/product_blocks/iptrunk.py b/gso/products/product_blocks/iptrunk.py
index 1da94f2491703ecf172e4b8f307a989fa3e8b309..f2c882bf9a68680c786f9c25ec00b2b838471d7d 100644
--- a/gso/products/product_blocks/iptrunk.py
+++ b/gso/products/product_blocks/iptrunk.py
@@ -51,13 +51,15 @@ class IptrunkBlockProvisioning(IptrunkBlockInactive,
     iptrunk_sideA_ae_iface: Optional[str] = None
     iptrunk_sideA_ae_geant_a_sid: Optional[str] = None
     iptrunk_sideA_ae_members: list[str] = Field(default_factory=list)
-    iptrunk_sideA_ae_members_description: list[str] = Field(default_factory=list)
+    iptrunk_sideA_ae_members_description: list[str] = Field(
+            default_factory=list)
     #
     iptrunk_sideB_node: DeviceBlockProvisioning
     iptrunk_sideB_ae_iface: Optional[str] = None
     iptrunk_sideB_ae_geant_a_sid: Optional[str] = None
     iptrunk_sideB_ae_members: list[str] = Field(default_factory=list)
-    iptrunk_sideB_ae_members_description: list[str] = Field(default_factory=list)
+    iptrunk_sideB_ae_members_description: list[str] = Field(
+            default_factory=list)
 
 
 class IptrunkBlock(IptrunkBlockProvisioning,
@@ -74,10 +76,12 @@ class IptrunkBlock(IptrunkBlockProvisioning,
     iptrunk_sideA_ae_iface: str
     iptrunk_sideA_ae_geant_a_sid: str
     iptrunk_sideA_ae_members: list[str] = Field(default_factory=list)
-    iptrunk_sideA_ae_members_description: list[str] = Field(default_factory=list)
+    iptrunk_sideA_ae_members_description: list[str] = Field(
+            default_factory=list)
     #
     iptrunk_sideB_node: DeviceBlock
     iptrunk_sideB_ae_iface: str
     iptrunk_sideB_ae_geant_a_sid: str
     iptrunk_sideB_ae_members: list[str] = Field(default_factory=list)
-    iptrunk_sideB_ae_members_description: list[str] = Field(default_factory=list)
+    iptrunk_sideB_ae_members_description: list[str] = Field(
+            default_factory=list)
diff --git a/gso/products/product_types/iptrunk.py b/gso/products/product_types/iptrunk.py
index 16765fece6f07fd3b9e541311a481b14eeef85ab..d12e010850cedc8d1f98fd2d38c33d4972b8fd50 100644
--- a/gso/products/product_types/iptrunk.py
+++ b/gso/products/product_types/iptrunk.py
@@ -10,7 +10,7 @@ class IptrunkInactive(SubscriptionModel, is_base=True):
 
 
 class IptrunkProvisioning(IptrunkInactive,
-                         lifecycle=[SubscriptionLifecycle.PROVISIONING]):
+                          lifecycle=[SubscriptionLifecycle.PROVISIONING]):
     iptrunk: IptrunkBlockProvisioning
 
 
diff --git a/gso/workflows/iptrunk/create_iptrunk.py b/gso/workflows/iptrunk/create_iptrunk.py
index 673cfdc477482fbaf211eb498285931fb29e9e9b..3177958f2df3994abfa242bf292cdaf07a27b278 100644
--- a/gso/workflows/iptrunk/create_iptrunk.py
+++ b/gso/workflows/iptrunk/create_iptrunk.py
@@ -29,13 +29,15 @@ def device_selector(choice_value: str) -> list:
             ProductTable.product_type == "Device",
             SubscriptionTable.status == "active",
         )
-        .with_entities(SubscriptionTable.subscription_id, SubscriptionTable.description)
+        .with_entities(SubscriptionTable.subscription_id,
+                       SubscriptionTable.description)
         .all()
     ):
         device_subscriptions[str(device_id)] = device_description
 
     return choice_list(
-        Choice(choice_value, zip(device_subscriptions.keys(), device_subscriptions.items())),  # type:ignore
+        Choice(choice_value, zip(device_subscriptions.keys(),
+                                 device_subscriptions.items())),  # type:ignore
         min_items=1,
         max_items=1,
     )
@@ -52,20 +54,21 @@ def initial_input_form_generator(product_name: str) -> FormGenerator:
         iptrunk_speed: str  # This should be an enum: 1/10/100/400
         iptrunk_minimum_links: int
 
-        iptrunk_sideA_node_id: device_selector(choice_value='DeviceEnumA')
+        iptrunk_sideA_node_id: device_selector(choice_value="DeviceEnumA")
         iptrunk_sideA_ae_iface: str
         iptrunk_sideA_ae_geant_a_sid: str
         iptrunk_sideA_ae_members: list[str]
         iptrunk_sideA_ae_members_descriptions: list[str]
 
-        iptrunk_sideB_node_id: device_selector(choice_value='DeviceEnumB')
+        iptrunk_sideB_node_id: device_selector(choice_value="DeviceEnumB")
         iptrunk_sideB_ae_iface: str
         iptrunk_sideB_ae_geant_a_sid: str
         iptrunk_sideB_ae_members: list[str]
         iptrunk_sideB_ae_members_descriptions: list[str]
-        # TODO: we need additional validation: 
+        # TODO: we need additional validation:
         # sideA fqdn must be different from sideB fqdn
-        # the lenght of iptrunk_sideA_ae_members should be the same as iptrunk_sideA_ae_members
+        # the lenght of iptrunk_sideA_ae_members should
+        # be the same as iptrunk_sideA_ae_members
         # interface names must be validated
 
     user_input = yield CreateIptrunkForm
@@ -116,17 +119,24 @@ def initialize_subscription(
     subscription.iptrunk.iptrunk_speed = iptrunk_speed
     subscription.iptrunk.iptrunk_minimum_links = iptrunk_minimum_links
 
-    subscription.iptrunk.iptrunk_sideA_node =  Device.from_subscription(iptrunk_sideA_node_id[0]).device
+    subscription.iptrunk.iptrunk_sideA_node = Device.from_subscription(
+            iptrunk_sideA_node_id[0]).device
     subscription.iptrunk.iptrunk_sideA_ae_iface = iptrunk_sideA_ae_iface
-    subscription.iptrunk.iptrunk_sideA_ae_geant_a_sid = iptrunk_sideA_ae_geant_a_sid
+    subscription.iptrunk.iptrunk_sideA_ae_geant_a_sid \
+        = iptrunk_sideA_ae_geant_a_sid
     subscription.iptrunk.iptrunk_sideA_ae_members = iptrunk_sideA_ae_members
-    subscription.iptrunk.iptrunk_sideA_ae_members_description = iptrunk_sideA_ae_members_descriptions
-
-    subscription.iptrunk.iptrunk_sideB_node =  Device.from_subscription(iptrunk_sideB_node_id[0]).device
-    subscription.iptrunk.iptrunk_sideB_ae_iface = iptrunk_sideB_ae_iface
-    subscription.iptrunk.iptrunk_sideB_ae_geant_a_sid = iptrunk_sideB_ae_geant_a_sid
+    subscription.iptrunk.iptrunk_sideA_ae_members_description \
+        = iptrunk_sideA_ae_members_descriptions
+
+    subscription.iptrunk.iptrunk_sideB_node = Device.from_subscription(
+            iptrunk_sideB_node_id[0]).device
+    subscription.iptrunk.iptrunk_sideB_ae_iface \
+        = iptrunk_sideB_ae_iface
+    subscription.iptrunk.iptrunk_sideB_ae_geant_a_sid \
+        = iptrunk_sideB_ae_geant_a_sid
     subscription.iptrunk.iptrunk_sideB_ae_members = iptrunk_sideB_ae_members
-    subscription.iptrunk.iptrunk_sideB_ae_members_description = iptrunk_sideB_ae_members_descriptions
+    subscription.iptrunk.iptrunk_sideB_ae_members_description \
+        = iptrunk_sideB_ae_members_descriptions
 
     subscription.description = f"Iptrunk {geant_s_sid}:  \
                                 (blablabla)"