Agregar en la vista lista y formulario el campo de la ciudad del cliente

__openerp__.py

@@ -14,7 +14,7 @@ Partner data in Sale View
 =======================
 Partner data in Sale View
 """,
-    'depends': ['sale', 'base'],
+    'depends': ['sale', 'base', 'eiru_delivery_baco'],
     'data': [
         'views/sale_view.xml'
     ],

models/sale.py

@@ -1,11 +1,8 @@
-from openerp.osv import fields, osv
-from openerp import api
-import openerp.addons.decimal_precision as dp
+# -*- encoding: utf-8 -*-
 
+from openerp import models, api, fields
 
-class SaleOrder(osv.Model):
+class SaleOrder(models.Model):
     _inherit = 'sale.order'
 
-    _columns = {
-        'city' : fields.char('Ciudad', related='partner_id.city',store=True),
-    }
+    city = fields.Char(string='Ciudad', related="partner_id.city", readonly=True)