From 36ed2ff1ea2a92be2ade3fb990bd7317d6d48d75 Mon Sep 17 00:00:00 2001
From: Luo Tao <luotao02@baidu.com>
Date: Fri, 17 Mar 2017 17:35:33 +0800
Subject: [PATCH] keep forward compatibility

---
 python/paddle/trainer_config_helpers/layers.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/python/paddle/trainer_config_helpers/layers.py b/python/paddle/trainer_config_helpers/layers.py
index 1eb4cf79687..7cd3ce91312 100755
--- a/python/paddle/trainer_config_helpers/layers.py
+++ b/python/paddle/trainer_config_helpers/layers.py
@@ -53,6 +53,7 @@ __all__ = [
     "hsigmoid",
     "conv_projection",
     "mse_cost",
+    "regression_cost",
     'classification_cost',
     "LayerOutput",
     'img_conv_layer',
@@ -3605,6 +3606,9 @@ def mse_cost(input, label, weight=None, name=None, layer_attr=None):
     return LayerOutput(name, LayerType.COST, parents=parents, size=1)
 
 
+regression_cost = mse_cost
+
+
 @wrap_name_default("cost")
 @layer_support()
 def classification_cost(input,
-- 
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