diff --git a/invenio_config_iform/custom_fields/__init__.py b/invenio_config_iform/custom_fields/__init__.py
index 14f0139..8f5962d 100644
--- a/invenio_config_iform/custom_fields/__init__.py
+++ b/invenio_config_iform/custom_fields/__init__.py
@@ -8,7 +8,6 @@
 
 """Custom fields."""
 
-
 from invenio_records_resources.services.custom_fields import BooleanCF
 
 ip_network = BooleanCF(name="ip_network")
diff --git a/invenio_config_iform/permissions/generators.py b/invenio_config_iform/permissions/generators.py
index 15df714..6d27fde 100644
--- a/invenio_config_iform/permissions/generators.py
+++ b/invenio_config_iform/permissions/generators.py
@@ -66,10 +66,7 @@ class RecordSingleIP(Generator):
             return []
 
         # if record has singleip, and the ip of the user matches the allowed ip
-        if (
-            record.get("custom_fields", {}).get("single_ip", False)
-            and self.check_permission()
-        ):
+        if record.get("custom_fields", {}).get("single_ip", False) and self.check_permission():
             return [any_user]
 
         # non of the above - return empty
@@ -94,10 +91,7 @@ class RecordSingleIP(Generator):
         Need provider is disallowed.
         """
         try:
-            if (
-                kwargs["record"]["custom_fields"]["single_ip"]
-                and not self.check_permission()
-            ):
+            if kwargs["record"]["custom_fields"]["single_ip"] and not self.check_permission():
                 return [any_user]
 
         except KeyError:
@@ -138,10 +132,7 @@ class AllowedFromIPNetwork(Generator):
             return []
 
         # if the record has set the ip_range allowance and is in the range
-        if (
-            record.get("custom_fields", {}).get("ip_network", False)
-            and self.check_permission()
-        ):
+        if record.get("custom_fields", {}).get("ip_network", False) and self.check_permission():
             return [any_user]
 
         # non of the above - return empty
@@ -166,10 +157,7 @@ class AllowedFromIPNetwork(Generator):
         Need provider is disallowed.
         """
         try:
-            if (
-                kwargs["record"]["custom_fields"]["ip_network"]
-                and not self.check_permission()
-            ):
+            if kwargs["record"]["custom_fields"]["ip_network"] and not self.check_permission():
                 return [any_user]
 
         except KeyError:
diff --git a/invenio_config_iform/permissions/policies.py b/invenio_config_iform/permissions/policies.py
index dbd6498..f2c98ee 100644
--- a/invenio_config_iform/permissions/policies.py
+++ b/invenio_config_iform/permissions/policies.py
@@ -25,7 +25,6 @@ One can define any action as long as it follows that pattern and
 is verified at the moment it is undertaken.
 """
 
-
 from invenio_administration.generators import Administration
 from invenio_communities.generators import CommunityCurators
 from invenio_rdm_records.services.generators import (
diff --git a/tests/conftest.py b/tests/conftest.py
index 39ce8a6..e111779 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -13,9 +13,8 @@ See https://pytest-invenio.readthedocs.io/ for documentation on which test
 fixtures are available.
 """
 
-
-import pytest
 from flask import Flask
+import pytest
 
 from invenio_config_iform import InvenioConfigIform