tree de579dc4d6e7fc29f4c314c74dd26a9a6c869291
parent 38c158b6220406748161deed5eeaec80147f255f
author Tony Mack <tmack@paris.CS.Princeton.EDU> 1397695640 -0400
committer Tony Mack <tmack@paris.CS.Princeton.EDU> 1397695640 -0400

fix AttributeError