Signed-off-by: FUJITA Tomonori <[email protected]>
---
ryu/controller/handler.py | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/ryu/controller/handler.py b/ryu/controller/handler.py
index 9a09e99..615fd12 100644
--- a/ryu/controller/handler.py
+++ b/ryu/controller/handler.py
@@ -29,7 +29,7 @@ DEAD_DISPATCHER = "dead"
# should be named something like 'observe_event'
-def set_ev_cls(ev_cls, dispatchers):
+def set_ev_cls(ev_cls, dispatchers=None):
def _set_ev_cls_dec(handler):
handler.ev_cls = ev_cls
handler.dispatchers = _listify(dispatchers)
--
1.7.4.4
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