Comment 1 for bug 1715080

I don't think global requirements is the problem here. It would appear that this is also an issue in master. Since pyldap is an optional dependency that is managed in setup.cfg, we'll need to bump it there [0]. Then we can discuss the process for backporting this to stable/pike with the stable maintenance team.

[0] https://github.com/openstack/keystone/blob/fbce49970cb005986f5e491583c07bb3644355b0/setup.cfg#L27