diff --git a/onchange_helper/__manifest__.py b/onchange_helper/__manifest__.py
index 386ae237e..425b2cba9 100644
--- a/onchange_helper/__manifest__.py
+++ b/onchange_helper/__manifest__.py
@@ -2,14 +2,13 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
 {
-    'name': 'Onchange Helper',
-    'version': '12.0.1.0.0',
-    'summary': 'Technical module that ease execution'
-    ' of onchange in Python code',
-    'author': 'Akretion,Camptocamp,Odoo Community Association (OCA)',
-    'website': 'https://github.com/OCA/server-tools',
-    'license': 'AGPL-3',
-    'category': 'Generic Modules',
-    'depends': ['base'],
-    'installable': True,
+    "name": "Onchange Helper",
+    "version": "12.0.1.0.0",
+    "summary": "Technical module that ease execution" " of onchange in Python code",
+    "author": "Akretion,Camptocamp,Odoo Community Association (OCA)",
+    "website": "https://github.com/OCA/server-tools",
+    "license": "AGPL-3",
+    "category": "Generic Modules",
+    "depends": ["base"],
+    "installable": True,
 }
diff --git a/onchange_helper/models/base.py b/onchange_helper/models/base.py
index 4cc24ca2b..e01659585 100644
--- a/onchange_helper/models/base.py
+++ b/onchange_helper/models/base.py
@@ -6,16 +6,16 @@ from odoo import api, models
 
 
 class Base(models.AbstractModel):
-    _inherit = 'base'
+    _inherit = "base"
 
     @api.model
     def _get_new_values(self, record, on_change_result):
-        vals = on_change_result.get('value', {})
+        vals = on_change_result.get("value", {})
         new_values = {}
         for fieldname, value in vals.items():
             if fieldname not in record:
                 column = self._fields[fieldname]
-                if value and column.type == 'many2one':
+                if value and column.type == "many2one":
                     value = value[0]  # many2one are tuple (id, name)
                 new_values[fieldname] = value
         return new_values
@@ -33,9 +33,7 @@ class Base(models.AbstractModel):
         # _onchange_spec() will return onchange fields from the default view
         # we need all fields in the dict even the empty ones
         # otherwise 'onchange()' will not apply changes to them
-        onchange_specs = {
-            field_name: '1' for field_name, field in self._fields.items()
-        }
+        onchange_specs = {field_name: "1" for field_name, field in self._fields.items()}
         all_values = values.copy()
         # If self is a record (play onchange on existing record)
         # we take the value of the field
diff --git a/onchange_helper/tests/test_onchange_helper.py b/onchange_helper/tests/test_onchange_helper.py
index 9e746b6b1..c88683724 100644
--- a/onchange_helper/tests/test_onchange_helper.py
+++ b/onchange_helper/tests/test_onchange_helper.py
@@ -6,31 +6,27 @@ from odoo.tests.common import TransactionCase
 
 class TestOnchangeHelper(TransactionCase):
     def test01_partner_parent(self):
-        main_partner = self.env.ref('base.main_partner')
-        input_vals = dict(parent_id=main_partner.id, type='contact')
-        updated_vals = self.env['res.partner'].play_onchanges(
-            input_vals, ['parent_id']
-        )
-        self.assertIn('country_id', updated_vals)
-        self.assertIn('state_id', updated_vals)
-        self.assertIn('street', updated_vals)
-        self.assertIn('zip', updated_vals)
+        main_partner = self.env.ref("base.main_partner")
+        input_vals = dict(parent_id=main_partner.id, type="contact")
+        updated_vals = self.env["res.partner"].play_onchanges(input_vals, ["parent_id"])
+        self.assertIn("country_id", updated_vals)
+        self.assertIn("state_id", updated_vals)
+        self.assertIn("street", updated_vals)
+        self.assertIn("zip", updated_vals)
 
-        self.assertEqual(
-            updated_vals['country_id'], main_partner.country_id.id
-        )
-        self.assertEqual(updated_vals['state_id'], main_partner.state_id.id)
-        self.assertEqual(updated_vals['street'], main_partner.street)
-        self.assertEqual(updated_vals['zip'], main_partner.zip)
+        self.assertEqual(updated_vals["country_id"], main_partner.country_id.id)
+        self.assertEqual(updated_vals["state_id"], main_partner.state_id.id)
+        self.assertEqual(updated_vals["street"], main_partner.street)
+        self.assertEqual(updated_vals["zip"], main_partner.zip)
 
     def test02_partner_country(self):
-        partner_demo = self.env.ref('base.partner_demo')
-        input_vals = {'country_id': self.env.ref('base.us').id}
-        updated_vals = partner_demo.play_onchanges(input_vals, ['country_id'])
-        self.assertIn('country_id', updated_vals)
+        partner_demo = self.env.ref("base.partner_demo")
+        input_vals = {"country_id": self.env.ref("base.us").id}
+        updated_vals = partner_demo.play_onchanges(input_vals, ["country_id"])
+        self.assertIn("country_id", updated_vals)
 
     def test_playing_onchange_on_model(self):
-        result = self.env['res.partner'].play_onchanges(
-            {'company_type': 'company'}, ['company_type']
+        result = self.env["res.partner"].play_onchanges(
+            {"company_type": "company"}, ["company_type"]
         )
-        self.assertEqual(result['is_company'], True)
+        self.assertEqual(result["is_company"], True)