diff --git a/README.md b/README.md
index ef8fb9b516b569c7d20e1700abf5beab67fc51d7..0838f4a8a1a9e48aa9d47567f88d66f8b4244ac9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # chan - 缠论技术分析工具
->缠论来源于[缠中说缠博客](http://blog.sina.com.cn/chzhshch)
+>缠论来源于[缠中说缠博客](http://blog.sina.com.cn/chzhshch)，欢迎加微信探讨，我的微信号是 `zengbin93`
 
 ## 安装
 
diff --git a/chan/utils.py b/chan/utils.py
index a395d38ff17d462e4803cf7b063402549ec4bd8c..498deba9f1628737778d56c8d589bfd7277bbb1d 100644
--- a/chan/utils.py
+++ b/chan/utils.py
@@ -3,6 +3,7 @@
 import os
 import shutil
 from collections import OrderedDict
+from .analyze import preprocess
 
 
 cache_path = os.path.join(os.path.expanduser('~'), ".chan")