Comment 1 for bug 1583637

As a test I downgraded the swiftclient and the tests passed

          Runtime (s)
------------------------------------------------------------------------------------------------------------ -----------
glance_store.tests.unit.test_s3_store.TestStore.test_add_size_variations 0.368
glance_store.tests.unit.test_backend.TestStoreAddToBackend.test_bad_metadata_not_dict 0.142
glance_store.tests.unit.test_backend.TestStoreAddToBackend.test_bad_nonunicode_dict_list 0.095
glance_store.tests.unit.test_http_store.TestHttpStore.test_http_get_raises_remote_service_unavailable 0.094
glance_store.tests.unit.test_opts.OptsTestCase.test_list_api_opts 0.057
glance_store.tests.unit.test_vmware_store.TestStore.test_unexpected_status 0.049
glance_store.tests.unit.test_swift_store.TestStoreAuthV3.test_delete_with_some_segments_failing 0.026
glance_store.tests.unit.test_swift_store.TestStoreAuthV1.test_add_auth_url_variations 0.020
glance_store.tests.unit.test_swift_store.TestStoreAuthV3.test_no_auth_address 0.019
glance_store.tests.unit.test_swift_store.TestStoreAuthV3.test_multi_container_doesnt_impact_multi_tenant_add 0.017
_____________________________________________ summary _____________________________________________
  py27: commands succeeded
  congratulations :)

We used to limit the package versions, eg on kilo, in test-requirements we have:

python-swiftclient<2.5.0,>=2.2.0

but on liberty we are not limiting the packages (including swiftclient) in anyway.
This is a problem since swiftclient 3.0 has been released.