diff --git a/addons/account/wizard/account_report_common.py b/addons/account/wizard/account_report_common.py
index 97bd1874d25..23f6953b2dc 100644
--- a/addons/account/wizard/account_report_common.py
+++ b/addons/account/wizard/account_report_common.py
@@ -25,7 +25,7 @@ class AccountCommonReport(models.TransientModel):
         return result
 
     def _print_report(self, data):
-        raise (_('Error!'), _('Not implemented.'))
+        raise NotImplementedError()
 
     @api.multi
     def check_report(self):
diff --git a/odoo/service/report.py b/odoo/service/report.py
index efeef65f656..42daa393e77 100644
--- a/odoo/service/report.py
+++ b/odoo/service/report.py
@@ -141,6 +141,6 @@ def exp_report_get(db, uid, report_id):
         if self_reports[report_id]['uid'] == uid:
             return _check_report(report_id)
         else:
-            raise Exception, 'AccessDenied'
+            raise Exception('AccessDenied')
     else:
-        raise Exception, 'ReportNotFound'
+        raise Exception('ReportNotFound')