From c774bce4a7549c5d16f2cf5e6449f9114e86e4e1 Mon Sep 17 00:00:00 2001
From: Janne Sinivirta <janne.sinivirta@gmail.com>
Date: Mon, 25 Dec 2017 09:46:40 +0200
Subject: [PATCH] add type annotation to trade_count_lock

---
 freqtrade/optimize/backtesting.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index a6f7dc93c..37217614e 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -75,7 +75,7 @@ def backtest(stake_amount: float, processed: Dict[str, DataFrame],
     :return: DataFrame
     """
     trades = []
-    trade_count_lock = {}
+    trade_count_lock: dict = {}
     exchange._API = Bittrex({'key': '', 'secret': ''})
     for pair, pair_data in processed.items():
         pair_data['buy'], pair_data['sell'] = 0, 0