From ce247057a81859c60dfac6e9cd9be1cbb2519fa4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sat, 7 Sep 2019 23:45:08 +0200
Subject: [PATCH] Prevent assign unknown attributes on Model

by adding __slots__ on PoolMeta

issue8567
review254091002
---
 opportunity.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/opportunity.py b/opportunity.py
index 87cace550a..5f72ab2ae4 100644
--- a/opportunity.py
+++ b/opportunity.py
@@ -510,6 +510,7 @@ class SaleOpportunityLine(sequence_ordered(), ModelSQL, ModelView):
 
 
 class SaleOpportunityReportMixin:
+    __slots__ = ()
     number = fields.Integer('Number')
     converted = fields.Integer('Converted')
     conversion_rate = fields.Function(fields.Float('Conversion Rate',