Py3: We cannot use len(filter(...))
Py3: We cannot use len(filter(...))

In Python 3, filter() returns a filter object, that has no length.

Change-Id: I726188a328119f41c534a6232a4494e40815e05c

swiftstack/swift,tipabu/swift,tipabu/swift,openstack/swift,openstack/swift,tipabu/swift,tipabu/swift,openstack/swift,openstack/swift,swiftstack/swift,swiftstack/swift