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-rw-r--r--sleekxmpp/xmlstream/statemachine.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/sleekxmpp/xmlstream/statemachine.py b/sleekxmpp/xmlstream/statemachine.py
index 66aa358f..e9e270c8 100644
--- a/sleekxmpp/xmlstream/statemachine.py
+++ b/sleekxmpp/xmlstream/statemachine.py
@@ -25,7 +25,7 @@ class StateMachine(object):
if gstate in self.__state or gstate in self.__group:
raise IndexError("The key or group '%s' is already in the StateMachine." % gstate)
for state in groups[gstate]:
- if self.__state.has_key(state):
+ if state in self.__state:
raise IndexError("The group %s contains a key %s which is not set in the StateMachine." % (gstate, state))
self.__group[gstate] = groups[gstate]