pin ciso8601 to avoid installation trouble on Python 3
|Assignee:||Peter Amstutz||% Done:|
|Target version:||2017-10-11 Sprint|
|Story points||-||Remaining (hours)||0.00 hour|
|Velocity based estimate||-|
Near term solution is to pin
ciso8601 >=1.0.0, <=1.0.4 until the problem is fixed upstream.