From 59888f1407d9e75502fc9bf7f8c37a8d1647434c Mon Sep 17 00:00:00 2001
From: Stepan Savelyev <stepan.savelyev@rydlab.ru>
Date: Wed, 4 Dec 2019 15:06:44 +0500
Subject: [PATCH] [FIX] internal error

---
 models/contract_wizard.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/models/contract_wizard.py b/models/contract_wizard.py
index 0665880..58f1846 100644
--- a/models/contract_wizard.py
+++ b/models/contract_wizard.py
@@ -1,9 +1,11 @@
 # -*- coding: utf-8 -*-
+import io
 
 import math
 from datetime import datetime
 
 from docxtpl import DocxTemplate
+
 from odoo import api, fields, models
 from odoo.tools.config import config
 from pytils import numeral
@@ -512,8 +514,10 @@ class ContractWizard(models.TransientModel):
         context = self._generate_context()
         doc = DocxTemplate(full_path)
         doc.render(context)
-        doc.save('tmp.docx')
-        return open('tmp.docx', 'rb').read()
+        stream = io.BytesIO()
+        doc.save(stream)
+        stream.seek(0)
+        return stream
 
     def get_docx_contract(self):
         return {