=== modified file 'document/document_storage.py'
--- document/document_storage.py	2013-09-24 16:26:55 +0000
+++ document/document_storage.py	2013-10-01 08:11:39 +0000
@@ -586,7 +586,10 @@
         elif boo.type == 'realstore':
             try:
                 path, npath = self.__prepare_realpath(cr, file_node, ira, boo.path, do_create=True)
-                fname = u.os.path.join(path, npath[-1])
+                try:
+                   fname = os.path.join(path, npath[-1])
+                except:
+                   fname = u.os.path.join(path, npath[-1])
                 fp = open(fname,'wb')
                 try:
                     fp.write(data)