Use context to close opened file
Use context to close opened file

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