'Returns a list of :class:`.Host` instances that are replicas for a given
partition key.'

def get_replicas(self, keyspace, key):

    t = self.token_map
    if (not t):
        return []
    try:
        return t.get_replicas(keyspace, t.token_class.from_key(key))
    except NoMurmur3:
        return []
