diff --git a/tz_crypto_bt.py b/tz_crypto_bt.py
index cabcdfb..8087866 100644
--- a/tz_crypto_bt.py
+++ b/tz_crypto_bt.py
@@ -48,15 +48,17 @@ import time
 import pandas as pd
 from datetime import datetime
 
-sys.path.append(os.path.abspath('./tz_crypto'))
-
 from tz_ctastrategy import (
+    ArrayManager,
     BarData,
+    BarGenerator,
     CtaTemplate,
     OrderData,
     StopOrder,
     TickData,
     TradeData,
 )
-from tz_ctastrategy.backtesting import BacktestingEngine
-from tzquant.trader.utility import ArrayManager, BarGenerator, Interval
+from tz_ctastrategy.backtesting_mul import BacktestingEngine
+from tz_ctastrategy.template import CtaTemplate
+from tzquant.trader.constant import OrderType
+from tzquant.trader.object import *