modified for python2
modified for python2

niboshi/chainer,niboshi/chainer,wkentaro/chainer,chainer/chainer,keisuke-umezawa/chainer,chainer/chainer,chainer/chainer,niboshi/chainer,keisuke-umezawa/chainer,wkentaro/chainer,okuta/chainer,niboshi/chainer,wkentaro/chainer,tkerola/chainer,okuta/chainer,keisuke-umezawa/chainer,hvy/chainer,okuta/chainer,hvy/chainer,wkentaro/chainer,keisuke-umezawa/chainer,okuta/chainer,hvy/chainer,chainer/chainer,pfnet/chainer,hvy/chainer