WIP: Python 2 to 3 fixes - add py2 compatibility

product/ERP5Form/ImageField.py

@@ -34,6 +34,7 @@ from OFS.Image import Image as OFSImage
 from lxml.etree import Element
 from lxml import etree
 import re
+import six
 
 DRAW_URI = 'urn:oasis:names:tc:opendocument:xmlns:drawing:1.0'
 TEXT_URI = 'urn:oasis:names:tc:opendocument:xmlns:text:1.0'
@@ -145,6 +146,8 @@ class ImageFieldWidget(Widget.TextWidget):
       if value in ('', None):
         return None
       path = '/'.join(REQUEST.physicalPathFromURL(value))
+      if six.PY2:
+        path = path.encode()
       image_object = field.getPortalObject().restrictedTraverse(path)
       display = field.get_value('image_display')
       format = field.get_value('image_format')

product/ERP5OOo/FormPrintout.py

@@ -1107,8 +1107,12 @@ class ODGStrategy(ODFStrategy):
       text_xpath = '//draw:frame[@draw:name="%s"]' % field.id
       node_list = element_tree.xpath(text_xpath, namespaces=element_tree.nsmap)
       value = field.get_value('default')
-      if isinstance(value, bytes):
-        value = value.decode('utf-8')
+      if six.PY2:
+        if isinstance(value, str):
+          value = value.decode('utf-8')
+      else:
+        if isinstance(value, bytes):
+          value = value.decode('utf-8')
       for target_node in node_list:
         # render the field in odg xml node format
         attr_dict = {}