check ws is none or not when stop the tab

Comocomo · Dec 25, 2017 · 16acdf9 · 16acdf9
1 parent 08995c9
commit 16acdf9
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pychrome/tab.py b/pychrome/tab.py
@@ -217,7 +217,8 @@ def stop(self):
 
         self.status = self.status_stopped
         self._stopped.set()
-        self._ws.close()
+        if self._ws:
+            self._ws.close()
         return True
 
     def wait(self, timeout=None):