From bf8367367e8ff813d6c9b5ef205ce517edb62678 Mon Sep 17 00:00:00 2001
From: Zeng Jinle <32832641+sneaxiy@users.noreply.github.com>
Date: Fri, 20 Sep 2019 09:53:14 +0800
Subject: [PATCH] fix download.py empty line, test=develop (#19870)

---
 python/paddle/dataset/common.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/python/paddle/dataset/common.py b/python/paddle/dataset/common.py
index ce16e3b851..e8c27180ee 100644
--- a/python/paddle/dataset/common.py
+++ b/python/paddle/dataset/common.py
@@ -72,6 +72,9 @@ def download(url, module_name, md5sum, save_name=None):
                             url.split('/')[-1]
                             if save_name is None else save_name)
 
+    if os.path.exists(filename) and md5file(filename) == md5sum:
+        return filename
+
     retry = 0
     retry_limit = 3
     while not (os.path.exists(filename) and md5file(filename) == md5sum):