catch KeyError
catch KeyError

wkentaro/chainer,jnishi/chainer,ktnyt/chainer,anaruse/chainer,wkentaro/chainer,hvy/chainer,keisuke-umezawa/chainer,hvy/chainer,hvy/chainer,jnishi/chainer,chainer/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer,pfnet/chainer,niboshi/chainer,ktnyt/chainer,chainer/chainer,hvy/chainer,rezoo/chainer,okuta/chainer,ktnyt/chainer,keisuke-umezawa/chainer,okuta/chainer,jnishi/chainer,tkerola/chainer,okuta/chainer,ktnyt/chainer,okuta/chainer,keisuke-umezawa/chainer,niboshi/chainer,aonotas/chainer,jnishi/chainer,keisuke-umezawa/chainer,ronekko/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer