diff --git a/examples/TurtleStrategy/turtleEngine.py b/examples/TurtleStrategy/turtleEngine.py
index 5c3b09e9..aa6603f6 100644
--- a/examples/TurtleStrategy/turtleEngine.py
+++ b/examples/TurtleStrategy/turtleEngine.py
@@ -1,5 +1,7 @@
 # encoding: UTF-8
 
+from __future__ import print_function
+
 from csv import DictReader
 from datetime import datetime
 from collections import OrderedDict, defaultdict
@@ -306,7 +308,7 @@ class BacktestingEngine(object):
     #----------------------------------------------------------------------
     def output(self, content):
         """输出信息"""
-        print content
+        print(content)
     
     #----------------------------------------------------------------------
     def getTradeData(self, vtSymbol=''):
@@ -432,4 +434,4 @@ class DailyResult(object):
 def formatNumber(n):
     """格式化数字到字符串"""
     rn = round(n, 2)        # 保留两位小数
-    return format(rn, ',')  # 加上千分符
\ No newline at end of file
+    return format(rn, ',')  # 加上千分符
diff --git a/install.sh b/install.sh
index 221547d3..b3e29e3c 100755
--- a/install.sh
+++ b/install.sh
@@ -10,25 +10,41 @@ function check_result() {
 }
 
 #Build ctp/lts/ib api
-pushd vnpy/api/ctp
-bash build.sh
-check_result "build api.ctp"
-popd
+echo "是否要安装'CTP'接口? (Do you need 'CTP' interface?)"
+read -p "Enter [y]n: " var1
+var1=${var1:-y}
+if [ "$var1" = "y" ]; then
+	pushd vnpy/api/ctp
+	bash build.sh
+	popd
+fi
 
-pushd vnpy/api/lts
-bash build.sh
-check_result "build api.lts"
-popd
+echo "是否要安装'LTS'接口? (Do you need 'LTS' interface?)"
+read -p "Enter [y]n: " var1
+var1=${var1:-y}
+if [ "$var1" = "y" ]; then
+	pushd vnpy/api/lts
+	bash build.sh
+	popd
+fi
 
-pushd vnpy/api/xtp
-bash build.sh
-check_result "build api.xtp"
-popd
+echo "是否要安装'XTP'接口? (Do you need 'XTP' interface?)"
+read -p "Enter [y]n: " var1
+var1=${var1:-y}
+if [ "$var1" = "y" ]; then
+	pushd vnpy/api/xtp
+	bash build.sh
+	popd
+fi
 
-pushd vnpy/api/ib
-bash build.sh
-check_result "build api.ib"
-popd
+echo "是否要安装'IB'接口? (Do you need 'IB' interface?)"
+read -p "Enter [y]n: " var1
+var1=${var1:-y}
+if [ "$var1" = "y" ]; then
+	pushd vnpy/api/ib
+	bash build.sh
+	popd
+fi
 
 #Install Python Modules
 pip install -r requirements.txt
diff --git a/vnpy/api/websocket/WebsocketClient.py b/vnpy/api/websocket/WebsocketClient.py
index b9d75e84..8583d4f7 100644
--- a/vnpy/api/websocket/WebsocketClient.py
+++ b/vnpy/api/websocket/WebsocketClient.py
@@ -263,11 +263,16 @@ class WebsocketClient(object):
         """
         用于Debug： 记录最后一次发送出去的text
         """
-        self._lastSentText = text[:500]
+        self._lastSentText = text[:1000]
 
     #----------------------------------------------------------------------
     def _recordLastReceivedText(self, text):
         """
         用于Debug： 记录最后一次发送出去的text
         """
-        self._lastReceivedText = text[:500]
+        try:
+            # 尝试解包，解不了就算
+            text = str(self.unpackData(text))
+        except:
+            pass
+        self._lastReceivedText = text[:1000]