diff --git a/models/res_partner_contract.py b/models/res_partner_contract.py
index 3844346..51c8368 100644
--- a/models/res_partner_contract.py
+++ b/models/res_partner_contract.py
@@ -90,7 +90,9 @@ class PartnerContract(models.Model):
 
     @api.multi
     def action_print_form(self):
-        view = self.env.ref("{}.res_partner_wizard_print_contract_view".format(MODULE_NAME))
+        view = self.env.ref(
+            "{}.res_partner_wizard_print_contract_view".format(MODULE_NAME)
+        )
         return {
             "name": _("Print Form of Contract"),
             "type": "ir.actions.act_window",
diff --git a/models/res_partner_contract_annex.py b/models/res_partner_contract_annex.py
index 6aa8b38..d416506 100644
--- a/models/res_partner_contract_annex.py
+++ b/models/res_partner_contract_annex.py
@@ -58,7 +58,9 @@ class ContractOrderAnnex(models.Model):
 
     @api.multi
     def action_print_form(self):
-        view = self.env.ref("{}.res_partner_wizard_print_annex_view".format(MODULE_NAME))
+        view = self.env.ref(
+            "{}.res_partner_wizard_print_annex_view".format(MODULE_NAME)
+        )
         return {
             "name": _("Print Form of Contract Annex"),
             "type": "ir.actions.act_window",
diff --git a/utils/__init__.py b/utils/__init__.py
index 5b306d3..6d0f55e 100644
--- a/utils/__init__.py
+++ b/utils/__init__.py
@@ -1 +1 @@
-MODULE_NAME = __package__.split('.')[-2]
+MODULE_NAME = __package__.split(".")[-2]
diff --git a/wizard/res_partner_contract_wizard.py b/wizard/res_partner_contract_wizard.py
index 65e0d14..7815afb 100644
--- a/wizard/res_partner_contract_wizard.py
+++ b/wizard/res_partner_contract_wizard.py
@@ -77,8 +77,12 @@ class ContractWizard(models.TransientModel):
         self.partner_id = partner_id
 
         model_to_action = {
-            "res.partner.contract": "{}.action_get_contract_context".format(MODULE_NAME),
-            "res.partner.contract.annex": "{}.action_get_annex_context".format(MODULE_NAME),
+            "res.partner.contract": "{}.action_get_contract_context".format(
+                MODULE_NAME
+            ),
+            "res.partner.contract.annex": "{}.action_get_annex_context".format(
+                MODULE_NAME
+            ),
         }
         action = model_to_action[active_model]
 
@@ -98,7 +102,12 @@ class ContractWizard(models.TransientModel):
                 .id,
                 0,
             )
-            for field, value in sorted(contract_context_values.items(), key=lambda tpl: self.env.ref("{}.contract_field_{}".format(MODULE_NAME, tpl[0])).sequence)
+            for field, value in sorted(
+                contract_context_values.items(),
+                key=lambda tpl: self.env.ref(
+                    "{}.contract_field_{}".format(MODULE_NAME, tpl[0])
+                ).sequence,
+            )
         ]
 
         # Set up template domain