[virt-tools-list] [virt-manager PATCH] host: catch KeyError in interface_selected

[Chen Hanxiao]

We should catch KeyError in interface_selected,
for that error could happen when
singal on_interface_list_changed comes.

How to reproduce:
1. create 3 bridge by Edit->Connection Details->Network Interface
2. delete them
3. We would get a KeyError

Signed-off-by: Chen Hanxiao <chenhanxiao at cn.fujitsu.com>
---
 virtManager/host.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/virtManager/host.py b/virtManager/host.py
index c8d7ee0..97a4f74 100644
--- a/virtManager/host.py
+++ b/virtManager/host.py
@@ -1098,6 +1098,15 @@ class vmmHost(vmmGObjectUI):
         name = model[treeiter][0]
 
         try:
+            self.conn.get_interface(name)
+        except KeyError:
+            self.widget("interface-apply").set_sensitive(False)
+            return
+        except Exception, e:
+            logging.exception(e)
+            self.set_interface_error_page(_("Error selecting interface: %s") %
+                    e)
+        try:
             self.populate_interface_state(name)
         except Exception, e:
             logging.exception(e)
-- 
1.8.5.3