From 75d90251f6ebe8deeee594db7f9e8b7f0e3ee0dc Mon Sep 17 00:00:00 2001
From: Tim Savannah <kata198@gmail.com>
Date: Sat, 20 May 2017 16:51:07 -0400
Subject: [PATCH] Add missing import

---
 func_timeout/dafunc.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/func_timeout/dafunc.py b/func_timeout/dafunc.py
index 5689061..d732d8d 100644
--- a/func_timeout/dafunc.py
+++ b/func_timeout/dafunc.py
@@ -8,6 +8,7 @@
     LICENSE, otherwise it is available at https://github.com/kata198/func_timeout/LICENSE
 '''
 
+import copy
 import inspect
 import threading
 import time