diff --git a/base_partner_ref/models/partner.py b/base_partner_ref/models/partner.py
index f9e7221..0be6f32 100644
--- a/base_partner_ref/models/partner.py
+++ b/base_partner_ref/models/partner.py
@@ -2,25 +2,29 @@
 # @author: Alexis de Lattre <alexis.delattre@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import api, fields, models
+from odoo import _, api, fields, models
 
 
 class ResPartner(models.Model):
     _inherit = 'res.partner'
 
-    ref = fields.Char(copy=False)  # To avoid blocking duplicate
+    ref = fields.Char(
+        copy=False,  # To avoid blocking duplicate
+    )
+
     invalidate_display_name = fields.Boolean()
 
     _sql_constraints = [(
         'ref_unique',
         'unique(ref)',
-        'A partner already exists with this internal reference!'
-        )]
+        _('A partner already exists with this internal reference !')
+    )]
 
     # add 'ref' in depends
-    @api.depends('is_company', 'name', 'parent_id.name', 'type', 'company_name', 'ref', 'invalidate_display_name')
+    @api.depends('is_company', 'name', 'parent_id.name', 'type',
+                 'company_name', 'ref', 'invalidate_display_name')
     def _compute_display_name(self):
-        super(ResPartner, self)._compute_display_name()
+        super()._compute_display_name()
 
     def _get_name(self):
         partner = self
@@ -32,12 +36,15 @@ class ResPartner(models.Model):
         # END modif of native method
         if partner.company_name or partner.parent_id:
             if not name and partner.type in ['invoice', 'delivery', 'other']:
-                name = dict(self.fields_get(['type'])['type']['selection'])[partner.type]
+                name = dict(self.fields_get(
+                    ['type'])['type']['selection'])[partner.type]
             if not partner.is_company:
                 # START modif of native name_get() method
-                company_name = partner.commercial_company_name or partner.parent_id.name
+                company_name = (
+                    partner.commercial_company_name or partner.parent_id.name)
                 if partner.parent_id.ref:
-                    company_name = u"[%s] %s" % (partner.parent_id.ref, company_name)
+                    company_name = u"[%s] %s" % (
+                        partner.parent_id.ref, company_name)
                 name = "%s, %s" % (company_name, name)
                 # END modif of native name_get() method
         if self._context.get('show_address_only'):