
OpenStack is dropping the py2.7 support in ussuri cycle. Complete discussion & schedule can be found in - http://lists.openstack.org/pipermail/openstack-discuss/2019-October/010142.html - https://etherpad.openstack.org/p/drop-python2-support Ussuri Communtiy-wide goal: https://governance.openstack.org/tc/goals/selected/ussuri/drop-py27.html This removes some cruft from Python 2.7 support. Raise requests lower-constraint to satisfy oslo.config. Change-Id: I47cc8ab5b348af28062ab3ff5329b96d2cbccdbb