boto/botocore — pull request #45 by jamesls (2013-05-06 22:32:23+00:00)
Title: Don't look at region vars for global endpoints

If a profile is specified, then trying to access a global endpoint
will result in an exception about the endpoint either not being valid,
or if a profile doesn't have a region, then it will complain that
there's no region set for the instance.