[MERGE] forward port branch saas-17 up to 877e7098719

1 files changed, 3 insertions, 3 deletions

diff --git a/addons/payment_authorize/models/authorize_request.py b/addons/payment_authorize/models/authorize_request.py
index fcfab1e3ac2..7388a1a4329 100644
--- a/addons/payment_authorize/models/authorize_request.py
+++ b/addons/payment_authorize/models/authorize_request.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
+import io
 import requests
 from lxml import etree, objectify
-from StringIO import StringIO
 from xml.etree import ElementTree as ET
 from uuid import uuid4
 
@@ -21,7 +21,7 @@ def strip_ns(xml, ns):
     :rtype: etree._Element
     :return: the parsed xml string with the namespace prefix removed
     """
-    it = ET.iterparse(StringIO(xml))
+    it = ET.iterparse(io.BytesIO(xml))
     ns_prefix = '{%s}' % XMLNS
     for _, el in it:
         if el.tag.startswith(ns_prefix):
@@ -58,7 +58,7 @@ class AuthorizeAPI():
 
         :param etree._Element data: etree data to process
         """
-        data = etree.tostring(data, xml_declaration=True, encoding='utf-8')
+        data = etree.tostring(data, encoding='utf-8')
         r = requests.post(self.url, data=data, headers={'Content-Type': 'text/xml'})
         r.raise_for_status()
         response = strip_ns(r.content, XMLNS)