diff --git a/models/acc_operation.py b/models/acc_operation.py
index 6a57593a0b7a7783afee0da9ccafbf5be9b708ae..0d45933af909b0dcc4277f61ef36c119800d3173 100644
--- a/models/acc_operation.py
+++ b/models/acc_operation.py
@@ -5,7 +5,7 @@ from datetime import datetime
 
 from dateutil.relativedelta import relativedelta
 
-from odoo import _, api, fields, models
+from odoo import _, fields, models
 from odoo.exceptions import ValidationError
 from odoo.tools import date_utils
 
@@ -41,7 +41,9 @@ class AccOperation(models.Model):
         date_month_start = date_month_start.strftime("%Y-%m-%d")
         date_month_end = date_month_end.strftime("%Y-%m-%d")
 
-        date_semestre_start, date_semestre_end = self.get_last_day("semestre", last_record)
+        date_semestre_start, date_semestre_end = self.get_last_day(
+            "semestre", last_record
+        )
         last_semester = (
             date_semestre_start.strftime("%d %B %Y")
             + "-"
@@ -94,9 +96,9 @@ class AccOperation(models.Model):
         self.ensure_one()
         if self.id:
             return {
-                'type': 'ir.actions.act_url',
-                'url': '/operation/%s' % (self.id),
-                'target': 'new',
+                "type": "ir.actions.act_url",
+                "url": "/operation/%s" % (self.id),
+                "target": "new",
             }
 
     # ------------------------------------------------------
@@ -185,12 +187,16 @@ class AccOperation(models.Model):
         """
 
         # Get last date slot recorded
-        last_record = self.env["acc.enedis.cdc"].sudo().search(
-            [
-                ("acc_operation_id", "in", self.ids),
-            ],
-            limit=1,
-            order="date_slot DESC",
+        last_record = (
+            self.env["acc.enedis.cdc"]
+            .sudo()
+            .search(
+                [
+                    ("acc_operation_id", "in", self.ids),
+                ],
+                limit=1,
+                order="date_slot DESC",
+            )
         )
 
         if not last_record: