diff --git a/partner_contact_in_several_companies/__init__.py b/partner_contact_in_several_companies/__init__.py
index cde864bae21..31660d6a965 100644
--- a/partner_contact_in_several_companies/__init__.py
+++ b/partner_contact_in_several_companies/__init__.py
@@ -1,3 +1,3 @@
-# -*- coding: utf-8 -*-
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
 from . import models
diff --git a/partner_contact_in_several_companies/demo/ir_actions.xml b/partner_contact_in_several_companies/demo/ir_actions.xml
index b1303b028c0..71eba445b5c 100644
--- a/partner_contact_in_several_companies/demo/ir_actions.xml
+++ b/partner_contact_in_several_companies/demo/ir_actions.xml
@@ -5,7 +5,9 @@
         <field name="type">ir.actions.act_window</field>
         <field name="res_model">res.partner</field>
         <field name="view_mode">kanban,tree,form</field>
-        <field name="context">{"search_default_customer":1, 'search_show_all_positions': {'is_set': True, 'set_value': True}}</field>
-        <field name="search_view_id" ref="base.view_res_partner_filter"/>
+        <field
+            name="context"
+        >{"search_default_customer":1, 'search_show_all_positions': {'is_set': True, 'set_value': True}}</field>
+        <field name="search_view_id" ref="base.view_res_partner_filter" />
     </record>
 </odoo>
diff --git a/partner_contact_in_several_companies/models/res_partner.py b/partner_contact_in_several_companies/models/res_partner.py
index 8a7ea9bea68..9ad9f67e94f 100644
--- a/partner_contact_in_several_companies/models/res_partner.py
+++ b/partner_contact_in_several_companies/models/res_partner.py
@@ -15,11 +15,12 @@ class ResPartner(models.Model):
         compute="_compute_contact_type",
         store=True,
         index=True,
-        default="standalone")
+        default="standalone"
+    )
     contact_id = fields.Many2one(
         "res.partner",
         string="Main Contact",
-        domain=[("is_company", "=", False), ("contact_type", "=", "standalone"), ],
+        domain=[("is_company", "=", False), ("contact_type", "=", "standalone")],
     )
     other_contact_ids = fields.One2many(
         "res.partner", "contact_id", string="Others Positions",
@@ -120,9 +121,7 @@ def update_contact(self, vals):
         if self.env.context.get("__update_contact_lock"):
             return
         contact_fields = self._contact_fields()
-        contact_vals = {
-            field: vals[field] for field in contact_fields if field in vals
-        }
+        contact_vals = {field: vals[field] for field in contact_fields if field in vals}
         if contact_vals:
             self.with_context(__update_contact_lock=True).write(contact_vals)
 
diff --git a/partner_contact_in_several_companies/tests/test_partner_contact_in_several_companies.py b/partner_contact_in_several_companies/tests/test_partner_contact_in_several_companies.py
index 3a4c142f7a8..adcebd009b2 100644
--- a/partner_contact_in_several_companies/tests/test_partner_contact_in_several_companies.py
+++ b/partner_contact_in_several_companies/tests/test_partner_contact_in_several_companies.py
@@ -13,9 +13,13 @@ def setUp(self):
         # Get test records reference
         self.main_partner = self.env.ref("base.main_partner")
         self.bob_contact = self.env.ref("%s.res_partner_contact1" % current_module)
-        self.bob_job1 = self.env.ref("%s.res_partner_contact1_work_position1" % current_module)
+        self.bob_job1 = self.env.ref(
+            "%s.res_partner_contact1_work_position1" % current_module
+        )
         self.roger_contact = self.env.ref("base.res_partner_main2")
-        self.roger_job2 = self.env.ref("%s.res_partner_main2_position_consultant" % current_module)
+        self.roger_job2 = self.env.ref(
+            "%s.res_partner_main2_position_consultant" % current_module
+        )
 
     def test_00_show_only_standalone_contact(self):
         """Check that only standalone contact are shown if context
@@ -52,13 +56,21 @@ def test_02_reading_other_contact_one2many_show_all_positions(self):
         """
 
         ctx = {}
-        self.assertEqual(self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids)
+        self.assertEqual(
+            self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids
+        )
         ctx = {"search_show_all_positions": {"is_set": False}}
-        self.assertEqual(self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids)
+        self.assertEqual(
+            self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids
+        )
         ctx = {"search_show_all_positions": {"is_set": True, "set_value": False}}
-        self.assertEqual(self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids)
+        self.assertEqual(
+            self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids
+        )
         ctx = {"search_show_all_positions": {"is_set": True, "set_value": True}}
-        self.assertEqual(self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids)
+        self.assertEqual(
+            self.bob_job1, self.bob_contact.with_context(ctx).other_contact_ids
+        )
 
         ctx = {}
         self.assertIn(self.bob_job1, self.main_partner.with_context(ctx).child_ids)
@@ -83,7 +95,9 @@ def test_03_search_match_attached_contacts(self):
         # but when searching without 'all positions',
         # we should get the position standalone contact instead.
         ctx = {"search_show_all_positions": {"is_set": True, "set_value": False}}
-        partner_ids = self.partner.with_context(ctx).search([("parent_id", "ilike", "YourCompany")])
+        partner_ids = self.partner.with_context(ctx).search(
+            [("parent_id", "ilike", "YourCompany")]
+        )
         self.assertTrue(self.bob_contact in partner_ids)
 
     def test_04_contact_creation(self):
@@ -100,19 +114,25 @@ def test_04_contact_creation(self):
 
         # Create a contact with both contact_id and name;
         # contact's name should override provided value in that case
-        new_contact = self.partner.create({"contact_id": self.bob_contact.id, "name": "Rob Egnops"})
+        new_contact = self.partner.create(
+            {"contact_id": self.bob_contact.id, "name": "Rob Egnops"}
+        )
         self.assertEqual(new_contact.name, "Bob Egnops")
 
         # Reset contact to standalone
         new_contact.write({"contact_id": False})
-        self.assertEqual(new_contact.contact_type, "standalone",)
+        self.assertEqual(
+            new_contact.contact_type, "standalone",
+        )
 
         # Reset contact to attached, and ensure only it is unlinked (i.e.
         # context is ignored).
         new_contact.write({"contact_id": self.bob_contact.id})
         ctx = {"search_show_all_positions": {"is_set": True, "set_value": True}}
         new_contact.with_context(ctx).unlink()
-        partner_ids = self.partner.with_context(ctx).search([("id", "in", [new_contact.id, self.bob_contact.id])])
+        partner_ids = self.partner.with_context(ctx).search(
+            [("id", "in", [new_contact.id, self.bob_contact.id])]
+        )
         self.assertIn(self.bob_contact, partner_ids)
         self.assertNotIn(new_contact, partner_ids)
 
@@ -123,11 +143,15 @@ def test_05_contact_fields_sync(self):
 
         # Test DOWNSTREAM sync
         self.bob_contact.write({"name": "Rob Egnops"})
-        self.assertEqual(self.bob_job1.name, "Rob Egnops",)
+        self.assertEqual(
+            self.bob_job1.name, "Rob Egnops",
+        )
 
         # Test UPSTREAM sync
         self.bob_job1.write({"name": "Bob Egnops"})
-        self.assertEqual(self.bob_contact.name, "Bob Egnops",)
+        self.assertEqual(
+            self.bob_contact.name, "Bob Egnops",
+        )
 
     def test_06_ir_action(self):
         """Check ir_action context is auto updated.
@@ -144,7 +168,7 @@ def test_06_ir_action(self):
         self.assertIn(
             new_context_val,
             details["context"],
-            msg="Default actions not updated with new context"
+            msg="Default actions not updated with new context",
         )
 
         details = self.env["ir.actions.act_window"].for_xml_id(
@@ -154,7 +178,7 @@ def test_06_ir_action(self):
         self.assertNotIn(
             new_context_val,
             details["context"],
-            msg="Custom actions incorrectly updated with new context"
+            msg="Custom actions incorrectly updated with new context",
         )
 
     def test_07_onchange(self):
@@ -164,15 +188,11 @@ def test_07_onchange(self):
         new_contact = self.partner.create({"name": "Bob before onchange"})
         new_contact.write({"contact_id": self.bob_contact.id})
         new_contact._onchange_contact_id()
-        self.assertEqual(
-            new_contact.name, "Bob Egnops"
-        )
+        self.assertEqual(new_contact.name, "Bob Egnops")
 
         new_contact.write({"contact_type": "standalone"})
         new_contact._onchange_contact_type()
-        self.assertEqual(
-            new_contact.contact_id, self.partner
-        )
+        self.assertEqual(new_contact.contact_id, self.partner)
 
     def test_08_commercial_partner_compute(self):
         new_contact = self.partner.create({"name": "Bob before onchange"})
diff --git a/partner_contact_in_several_companies/views/res_partner.xml b/partner_contact_in_several_companies/views/res_partner.xml
index 167940dc28b..800f3d2f7cb 100644
--- a/partner_contact_in_several_companies/views/res_partner.xml
+++ b/partner_contact_in_several_companies/views/res_partner.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <odoo>
     <record id="view_res_partner_filter_contact" model="ir.ui.view">
         <field name="name">res.partner.select.contact</field>
@@ -48,17 +48,20 @@
                 expr="//field[@name='child_ids']/form//field[@name='name']"
                 position="before"
             >
-                <field name='contact_type' readonly='0'/>
-                <field name="contact_id"
-                       string="Contact"
-                       attrs="{'invisible': [('contact_type','!=','attached')], 'required': [('contact_type','=','attached')]}"
+                <field name='contact_type' readonly='0' />
+                <field
+                    name="contact_id"
+                    string="Contact"
+                    attrs="{'invisible': [('contact_type','!=','attached')], 'required': [('contact_type','=','attached')]}"
                 />
             </xpath>
             <xpath
                 expr="//field[@name='child_ids']/form//field[@name='name']"
                 position="attributes"
             >
-                <attribute name="attrs">{'invisible': [('contact_type','=','attached')]}</attribute>
+                <attribute
+                    name="attrs"
+                >{'invisible': [('contact_type','=','attached')]}</attribute>
             </xpath>
             <field name="is_company" position="after">
                 <field name="contact_type" invisible="1" />
@@ -219,7 +222,10 @@
                                         <field name="email" />
                                         <field name="phone" widget="phone" />
                                         <field name="mobile" widget="phone" />
-                                        <field name="comment" placeholder="internal note..." />
+                                        <field
+                                            name="comment"
+                                            placeholder="internal note..."
+                                        />
                                     </group>
                                 </group>
                                 <field name="lang" invisible="True" />
@@ -234,7 +240,10 @@
     <record id="personal_contact_information" model="ir.ui.view">
         <field name="name">Contacts in several partners: personal info</field>
         <field name="model">res.partner</field>
-        <field name="inherit_id" ref="partner_contact_personal_information_page.personal_information" />
+        <field
+            name="inherit_id"
+            ref="partner_contact_personal_information_page.personal_information"
+        />
         <field name="arch" type="xml">
             <xpath
                 expr="//page[@name='personal_information_page']/group[@name='personal_information_group']"