diff --git a/rma_sale/models/rma_order.py b/rma_sale/models/rma_order.py
index a97124b6..bb167e96 100644
--- a/rma_sale/models/rma_order.py
+++ b/rma_sale/models/rma_order.py
@@ -17,7 +17,7 @@ class RmaOrder(models.Model):
         self.sale_count = len(list(set(sales_list)))
 
     sale_count = fields.Integer(compute=_compute_sales_count,
-                                 string='# of Sales', copy=False, default=0)
+                                string='# of Sales', copy=False, default=0)
 
     @api.model
     def _get_line_domain(self, rma_id, line):
@@ -38,4 +38,4 @@ class RmaOrder(models.Model):
             if rma_line.sale_line_id and rma_line.sale_line_id.id:
                 order_ids.append(rma_line.sale_line_id.order_id.id)
         result['domain'] = [('id', 'in', order_ids)]
-        return result
\ No newline at end of file
+        return result
diff --git a/rma_sale/models/rma_order_line.py b/rma_sale/models/rma_order_line.py
index e6be59ec..b4088098 100644
--- a/rma_sale/models/rma_order_line.py
+++ b/rma_sale/models/rma_order_line.py
@@ -4,6 +4,7 @@
 from openerp import _, api, fields, models
 from openerp.addons import decimal_precision as dp
 
+
 class RmaOrderLine(models.Model):
     _inherit = "rma.order.line"
 
diff --git a/rma_sale/wizards/rma_add_sale.py b/rma_sale/wizards/rma_add_sale.py
index 1ed460fd..5b382646 100644
--- a/rma_sale/wizards/rma_add_sale.py
+++ b/rma_sale/wizards/rma_add_sale.py
@@ -2,11 +2,8 @@
 # © 2017 Eficent Business and IT Consulting Services S.L.
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html)
 
-import time
-from openerp import models, fields, exceptions, api, _
+from openerp import _, api, fields, models
 from openerp.exceptions import ValidationError
-from openerp.tools import DEFAULT_SERVER_DATETIME_FORMAT as DT_FORMAT
-import openerp.addons.decimal_precision as dp
 
 
 class RmaAddSale(models.TransientModel):
@@ -31,9 +28,9 @@ class RmaAddSale(models.TransientModel):
         return res
 
     rma_id = fields.Many2one('rma.order',
-                              string='RMA Order',
-                              readonly=True,
-                              ondelete='cascade')
+                             string='RMA Order',
+                             readonly=True,
+                             ondelete='cascade')
 
     partner_id = fields.Many2one(comodel_name='res.partner', string='Partner',
                                  readonly=True)
diff --git a/rma_sale/wizards/rma_make_picking.py b/rma_sale/wizards/rma_make_picking.py
index 7291d4be..deb557a2 100644
--- a/rma_sale/wizards/rma_make_picking.py
+++ b/rma_sale/wizards/rma_make_picking.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # © 2017 Eficent Business and IT Consulting Services S.L.
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html)
-from openerp import models, fields, exceptions, api, _
+from openerp import api, fields, models
 
 
 class RmaMakePicking(models.TransientModel):
@@ -13,8 +13,9 @@ class RmaMakePicking(models.TransientModel):
         res['sale_line_id'] = line.sale_line_id.id
         return res
 
+
 class RmaMakePickingItem(models.TransientModel):
     _inherit = "rma_make_picking.wizard.item"
 
     sale_line_id = fields.Many2one('sale.order.line',
-                                    string='Sale Line')
+                                   string='Sale Line')
diff --git a/rma_sale/wizards/rma_refund.py b/rma_sale/wizards/rma_refund.py
index 020315ae..7b0eb2b0 100644
--- a/rma_sale/wizards/rma_refund.py
+++ b/rma_sale/wizards/rma_refund.py
@@ -1,9 +1,7 @@
 # -*- coding: utf-8 -*-
 # © 2017 Eficent Business and IT Consulting Services S.L.
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html)
-from openerp import models, fields, exceptions, api, _
-import openerp.addons.decimal_precision as dp
-from openerp.exceptions import ValidationError
+from openerp import _, api, fields, models
 
 
 class RmaRefund(models.TransientModel):
@@ -20,4 +18,4 @@ class RmaRefundItem(models.TransientModel):
     _inherit = "rma.refund.item"
 
     sale_line_id = fields.Many2one('sale.order.line',
-                                    string='Sale Line')
+                                   string='Sale Line')