topic.exist() raises a new flaky error, likely due to the cutover to use gRPC by default.
======================================================================ERROR: test_list_subscriptions (pubsub.TestPubsub)
----------------------------------------------------------------------Traceback (mostrecentcalllast):
File"/home/travis/build/GoogleCloudPlatform/gcloud-python/system_tests/pubsub.py", line127, intest_list_subscriptionsself.assertFalse(topic.exists())
File"/home/travis/build/GoogleCloudPlatform/gcloud-python/.tox/system-tests/lib/python2.7/site-packages/gcloud/pubsub/topic.py", line179, inexistsapi.topic_get(topic_path=self.full_name)
...
File"/home/travis/build/GoogleCloudPlatform/gcloud-python/.tox/system-tests/lib/python2.7/site-packages/grpc/beta/_client_adaptations.py", line203, in_blocking_unary_unaryraise_abortion_error(rpc_error_call)
GaxError: GaxError(RPCfailed, causedbyAbortionError(code=StatusCode.UNAVAILABLE, details="{"created":"@1471388632.560540215","description":"Securereadfailed","file":"src/core/lib/security/transport/secure_endpoint.c","file_line":157,"grpc_status":14,"referenced_errors":[{"created":"@1471388632.560504209","description":"EOF","file":"src/core/lib/iomgr/tcp_posix.c","file_line":235}]}"))
topic.exist()raises a new flaky error, likely due to the cutover to use gRPC by default.