tree 9d58fb604845030779414f4ca1f7a40330be7625
parent 80f1a4b507e27dd6064066021fa805b23fad2a67
author Tony Mack <tmack@tux.cs.princeton.edu> 1411568551 -0400
committer Tony Mack <tmack@tux.cs.princeton.edu> 1411568551 -0400

fix attribute error