diff --git a/tools/deploy/Caffe/net.py b/tools/deploy/Caffe/net.py
index d2291f5..2ef114d 100644
--- a/tools/deploy/Caffe/net.py
+++ b/tools/deploy/Caffe/net.py
@@ -1 +1 @@
-raise ImportError,'the nn_tools.Caffe.net is no longer used, please use nn_tools.Caffe.caffe_net'
\ No newline at end of file
+raise ImportError('the nn_tools.Caffe.net is no longer used, please use nn_tools.Caffe.caffe_net')