Keystone requirements conflict between pbr and sqlalchemy-migrate

[Le Tian Ren]

When I tried to install virtual environment today after a rebase, I got this failure:

error: pbr 1.2.0 is installed but pbr!=0.7,<1.0,>=0.6 is required by set(['sqlalchemy-migrate'])

The pbr package requirement was changed recently, from <1.0 to <2.0, by

https://github.com/openstack/keystone/commit/ccc794d5d83e318eddc456dd4745942e5f7aaac5

That's why I got the pbr 1.2.0 installed, however, https://pypi.python.org/pypi/sqlalchemy-migrate/0.9.6 requires pbr to be (>=0.6,!=0.7,<1.0).

I think we need roll back the change.

[Morgan Fainberg (mdrnstm)]

This is not something we can usually directly affect. This requires an update to sql-alchemy-migrate (the update to the requirements is already proposed): https://review.openstack.org/#/c/195606/