error handling

trans.py

@@ -18,9 +18,13 @@ def cert_to_xml(cert_doc):
       'name':[{'content':[config['name']],'lang':'en'}], \
       'release':version \
     }
-    cert_doc['DCC']['administrativeData']['dccSoftware'].append(s)       
-    xml = prettify_xml(render_template(dcc_template, doc=cert_doc['DCC']), \
-      indent=2, debug=False)
+    cert_doc['DCC']['administrativeData']['dccSoftware'].append(s)
+           
+    xml = render_template(dcc_template, doc=cert_doc['DCC'])  
+    try:
+        xml = prettify_xml(xml, indent=2, debug=False)
+    except Exception as error:
+        xml = '<error>' + str(error) + '</error>\n'
     
     return xml