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The openstack Ussuri and Victoria versions no longer support the Centos7 and pyrhon2 environment packages. Correct the missing problems in the latest document Change-Id: I60787243fdc6ed2741522355ec79970bdb912f41
The openstack Ussuri and Victoria versions no longer support the Centos7 and pyrhon2 environment packages. Correct the missing problems in the latest document Change-Id: I60787243fdc6ed2741522355ec79970bdb912f41