From 7bed9f56bc304cd483534f54066a83c8a85fee8e Mon Sep 17 00:00:00 2001
From: Julien Duponchelle <julien@duponchelle.info>
Date: Fri, 23 Jan 2015 17:33:58 +0100
Subject: [PATCH] Avoid crash when closing vms

Otherwise the size of dict change and Python raise
an exception.
---
 gns3server/modules/base_manager.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gns3server/modules/base_manager.py b/gns3server/modules/base_manager.py
index 8788e5f1..8913b21f 100644
--- a/gns3server/modules/base_manager.py
+++ b/gns3server/modules/base_manager.py
@@ -97,7 +97,7 @@ class BaseManager:
     @asyncio.coroutine
     def unload(self):
 
-        for uuid in self._vms.keys():
+        for uuid in list(self._vms.keys()):
             try:
                 yield from self.delete_vm(uuid)
             except Exception as e: