tree a2d98b7bc05bdd2e274639d08dcaa01041d86838
parent f77f14015dc30dd02d53d9bcc6682879d513dea6
author Tony Mack <tmack@paris.CS.Princeton.EDU> 1396467572 -0400
committer Tony Mack <tmack@paris.CS.Princeton.EDU> 1396467572 -0400

fix AttributeError