Cert auth and open bucket with password do not raise error

from couchbase.cluster import Cluster

cluster = Cluster('couchbases://10.142.175.101?certpath=/Users/daschl/tmp/ks/chain.pem&keypath=/Users/daschl/tmp/ks/pkey.key')

cb = cluster.open_bucket('pixels', password = 'foo')

cb.upsert('u:king_arthur', {'name': 'Arthur', 'email': 'kingarthur@couchbase.com', 'interests': ['Holy Grail', 'African Swallows']})

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