[FIX] Travis

rma_purchase/models/rma_operation.py

@@ -1,24 +1,27 @@
 # Copyright 2018 Eficent Business and IT Consulting Services S.L.
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html)
 
-from odoo import api, fields, models, _
+from odoo import _, api, fields, models
 from odoo.exceptions import ValidationError
 
 
 class RmaOperation(models.Model):
-    _inherit = 'rma.operation'
+    _inherit = "rma.operation"
 
     purchase_policy = fields.Selection(
-        selection=[('no', 'Not required'),
-                   ('ordered', 'Based on Ordered Quantities'),
-                   ('delivered', 'Based on Delivered Quantities')],
-        string="Purchase Policy", default='no',
+        selection=[
+            ("no", "Not required"),
+            ("ordered", "Based on Ordered Quantities"),
+            ("delivered", "Based on Delivered Quantities"),
+        ],
+        string="Purchase Policy",
+        default="no",
     )
 
     @api.multi
-    @api.constrains('purchase_policy')
+    @api.constrains("purchase_policy")
     def _check_purchase_policy(self):
-        if self.filtered(
-                lambda r: r.purchase_policy != 'no' and r.type != 'supplier'):
-            raise ValidationError(_(
-                'Purchase Policy can only apply to supplier operations'))
+        if self.filtered(lambda r: r.purchase_policy != "no" and r.type != "supplier"):
+            raise ValidationError(
+                _("Purchase Policy can only apply to supplier operations")
+            )