@ -150,7 +150,7 @@ def _append_backward_ops_(target,
if target_block.idx == 0:
grad_target_name = _append_grad_suffix_(target.name)
target_block.desc.var(grad_target_name.encode("ascii"))
# target_block.desc.var(grad_target_name.encode("ascii"))
grad_op_descs.insert(
0,
_create_op_desc_(