FIX StringIO

csv_import.py

@@ -260,7 +260,7 @@ class CSVArchive(Workflow, ModelSQL, ModelView):
         quote = profile.csv_quote
         header = profile.csv_header
 
-        data = StringIO(archive.data)
+        data = StringIO.StringIO(archive.data)
         try:
             rows = reader(data, delimiter=str(separator),
                 quotechar=str(quote))
@@ -272,7 +272,7 @@ class CSVArchive(Workflow, ModelSQL, ModelView):
                     raise_exception=False),
                 )})
             return
-        data.close()
+
         if header:  # TODO. Know why some header columns get ""
             headers = [filter(lambda x: x in string.printable, x
                     ).replace('"', '')