# HG changeset patch
# User cmlenz
# Date 1187181700 0
# Node ID 04936a6812af7e06d99eb31d16b30292fe607e4e
# Parent  ba30864779ccc93ec7556d64d29ab647c2f5c197
Fail more gracefully when formatting the timezone for an unknown/invalid territory.

diff --git a/babel/dates.py b/babel/dates.py
--- a/babel/dates.py
+++ b/babel/dates.py
@@ -276,8 +276,10 @@
     # localized country name
     region_format = locale.zone_formats['region']
     territory = get_global('zone_territories').get(zone)
+    if territory not in locale.territories:
+        territory = 'ZZ' # invalid/unknown
     territory_name = locale.territories[territory]
-    if territory and len(get_global('territory_zones')[territory]) == 1:
+    if territory and len(get_global('territory_zones').get(territory, [])) == 1:
         return region_format % (territory_name)
 
     # Otherwise, include the city in the output