From 0afc6dda3caa86a7f13f917ec17218082feb41c7 Mon Sep 17 00:00:00 2001
From: Erik Kulyk <e.kulyk@gmail.com>
Date: Sun, 12 Oct 2014 16:49:52 -0600
Subject: [PATCH] Check for socket before attempting to close - related to bug
 at ekulyk/PythonPusherClient#14

---
 websocket/_core.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/websocket/_core.py b/websocket/_core.py
index d77a4d5..d703307 100644
--- a/websocket/_core.py
+++ b/websocket/_core.py
@@ -831,7 +831,8 @@ class WebSocket(object):
         self._closeInternal()
 
     def _closeInternal(self):
-        self.sock.close()
+        if self.sock:
+            self.sock.close()
 
     def _send(self, data):
         if isinstance(data, six.text_type):