Handle already unlized documents

scripts/unlizeToNotebook.py

@@ -31,11 +31,20 @@ def unlizeXmlNb(input, output, template, lang, dry_run):
                 # Add
                 unl = unlize(nestedBody2Str(node), lang, dry_run)
                 addCell(nb, node.text, unl)
+            else:
+                addCell(nb, getText(node, 'orig'), getText(node, 'unl'))
 
     with open(output, 'w') as f:
         nbf.write(nb, f)
 
 
+def getText(node, tag):
+    try:
+        return node.xpath(tag)[0].text
+    except IndexError:
+        return ''
+
+
 def addCell(nb, xml, unl):
     code = """
 xmldata = \"\"\"