From 7de6e0fb428f1662d7f31835cffe15c228492bf7 Mon Sep 17 00:00:00 2001
From: "vn.py" <xiaoyou.chen@foxmail.com>
Date: Thu, 19 Sep 2019 21:55:33 +0800
Subject: [PATCH] [Mod] add wmi into requirements

---
 requirements.txt     | 3 ++-
 vnpy/rpc/__init__.py | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 66137198..4f68c40d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,4 +18,5 @@ rqdatac
 ta-lib
 ibapi
 deap
-pyzmq
\ No newline at end of file
+pyzmq
+wmi
\ No newline at end of file
diff --git a/vnpy/rpc/__init__.py b/vnpy/rpc/__init__.py
index b74e1f4e..f29bc00b 100644
--- a/vnpy/rpc/__init__.py
+++ b/vnpy/rpc/__init__.py
@@ -239,7 +239,7 @@ class RpcClient:
 
     def join(self):
         # Wait for RpcClient thread to exit
-        if self.__thread.isAlive():
+        if self.__thread and self.__thread.is_alive():
             self.__thread.join()
         self.__thread = None