From cfd3d39ee73a362e9a5538a61ab1815f5ff91552 Mon Sep 17 00:00:00 2001
From: calmzeal <76763831@qq.com>
Date: Sat, 5 May 2018 19:23:43 +0800
Subject: [PATCH] fix empty elem in get_elem_text (#197)

---
 wechatsogou/tools.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/wechatsogou/tools.py b/wechatsogou/tools.py
index 0aa9923..dc7b742 100644
--- a/wechatsogou/tools.py
+++ b/wechatsogou/tools.py
@@ -37,7 +37,10 @@ def get_elem_text(elem):
     Returns:
         elem中文字
     """
-    return ''.join([node.strip() for node in elem.itertext()])
+    if elem != '':
+        return ''.join([node.strip() for node in elem.itertext()])
+    else:
+        return ''
 
 
 def get_first_of_element(element, sub, contype=None):