sync oslo

this patch also corrects an issue where we incorrectly referenced
common._i18n

this patch syncs to: Ia1820495a989f4f84530ab83f2d87d53a9f761df

Change-Id: Ia192869d7e92732000b9033b09b97316ba5d5028

1 files changed, 4 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 75d37fd..9385341 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,4 +31,7 @@ commands = oslo_debug_helper {posargs}
 show-source = True
 ignore = H405,H904
 exclude = .tox,dist,doc,*.egg,build,./pycadf/openstack/common
-builtins = _
+
+[hacking]
+import_exceptions =
+    pycadf._i18n