diff --git a/base_cron_exclusion/__manifest__.py b/base_cron_exclusion/__manifest__.py
index 82635ce7c..831e0b6b4 100644
--- a/base_cron_exclusion/__manifest__.py
+++ b/base_cron_exclusion/__manifest__.py
@@ -5,17 +5,13 @@
 {
     "name": "Base Cron Exclusion",
     "summary": "Allow you to select scheduled actions that should not run "
-               "simultaneously.",
+    "simultaneously.",
     "version": "12.0.1.0.0",
     "author": "Eficent, Odoo Community Association (OCA)",
     "website": "https://github.com/OCA/server-tools",
     "category": "Tools",
-    "depends": [
-        "base",
-    ],
-    "data": [
-        "views/ir_cron_view.xml",
-    ],
+    "depends": ["base"],
+    "data": ["views/ir_cron_view.xml"],
     "license": "LGPL-3",
     "installable": True,
 }
diff --git a/base_cron_exclusion/models/ir_cron.py b/base_cron_exclusion/models/ir_cron.py
index d4174a3a3..4764328d2 100644
--- a/base_cron_exclusion/models/ir_cron.py
+++ b/base_cron_exclusion/models/ir_cron.py
@@ -4,8 +4,7 @@
 
 import logging
 
-from odoo import sql_db
-from odoo import api, fields, models, _
+from odoo import _, api, fields, models, sql_db
 from odoo.exceptions import ValidationError
 
 _logger = logging.getLogger(__name__)
@@ -14,49 +13,61 @@ _logger = logging.getLogger(__name__)
 class IrCron(models.Model):
     _inherit = "ir.cron"
 
-    @api.constrains('mutually_exclusive_cron_ids')
+    @api.constrains("mutually_exclusive_cron_ids")
     def _check_auto_exclusion(self):
         for item in self:
             if item in item.mutually_exclusive_cron_ids:
-                raise ValidationError(_(
-                    "You can not mutually exclude a scheduled actions with "
-                    "itself."))
+                raise ValidationError(
+                    _(
+                        "You can not mutually exclude a scheduled actions with "
+                        "itself."
+                    )
+                )
 
     mutually_exclusive_cron_ids = fields.Many2many(
-        comodel_name="ir.cron", relation="ir_cron_exclusion",
-        column1="ir_cron1_id", column2="ir_cron2_id",
-        string="Mutually Exclusive Scheduled Actions")
+        comodel_name="ir.cron",
+        relation="ir_cron_exclusion",
+        column1="ir_cron1_id",
+        column2="ir_cron2_id",
+        string="Mutually Exclusive Scheduled Actions",
+    )
 
     @staticmethod
     def _lock_mutually_exclusive_cron(db, job_id):
         lock_cr = db.cursor()
-        lock_cr.execute("""
+        lock_cr.execute(
+            """
             WITH Q1 AS (SELECT ir_cron2_id as cron_id FROM ir_cron_exclusion
                             WHERE ir_cron1_id=%s
                         UNION ALL
                         SELECT ir_cron1_id as cron_id FROM ir_cron_exclusion
                             WHERE ir_cron2_id=%s)
                 SELECT * FROM Q1
-                GROUP BY cron_id;""", (job_id, job_id))
+                GROUP BY cron_id;""",
+            (job_id, job_id),
+        )
         locked_ids = tuple([row[0] for row in lock_cr.fetchall()])
         if locked_ids:
-            lock_cr.execute("""SELECT *
+            lock_cr.execute(
+                """SELECT *
                                FROM ir_cron
                                WHERE numbercall != 0
                                   AND active
                                   AND id IN %s
                                FOR UPDATE NOWAIT""",
-                            (locked_ids,), log_exceptions=False)
+                (locked_ids,),
+                log_exceptions=False,
+            )
             lock_cr.fetchall()
         return lock_cr
 
     @classmethod
     def _process_job(cls, job_cr, job, cron_cr):
         db = sql_db.db_connect(cls.pool._db.dbname)
-        locked_crons = cls._lock_mutually_exclusive_cron(db, job['id'])
+        locked_crons = cls._lock_mutually_exclusive_cron(db, job["id"])
         try:
             res = super(IrCron, cls)._process_job(job_cr, job, cron_cr)
         finally:
             locked_crons.close()
-            _logger.debug("released blocks for cron job %s" % job['cron_name'])
+            _logger.debug("released blocks for cron job %s" % job["cron_name"])
         return res