From a28df3eb0b874168abb00809ffe5715c426b010e Mon Sep 17 00:00:00 2001
From: Yibing Liu <liuyibing01@baidu.com>
Date: Wed, 26 Dec 2018 07:52:12 +0800
Subject: [PATCH] Fix the unstack layer (#15047)

test=develop
---
 python/paddle/fluid/layers/nn.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/paddle/fluid/layers/nn.py b/python/paddle/fluid/layers/nn.py
index bdfcc8c4e26..489433cff55 100644
--- a/python/paddle/fluid/layers/nn.py
+++ b/python/paddle/fluid/layers/nn.py
@@ -7943,7 +7943,7 @@ def unstack(x, axis=0, num=None):
             num = x.shape[axis]
 
     outs = []
-    for _ in num:
+    for _ in range(num):
         outs.append(helper.create_variable_for_type_inference(x.dtype))
 
     helper.append_op(
-- 
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