With change I1b5ad99c89d8dec0abd18b1f794dabdb0aed13c3, parse module
has started using python-dateutil, but it's not been added to
requirements.
Change-Id: I779f654f4529e863b8feeaebc20ee7467176ad75
Closes-bug: #1855983
According to OpenStack summit session [1], stestr is
maintained project to which all OpenStack projects should
migrate.
Let's switch to stestr as other projects have already
moved to it.
Uses environment inclusions which need tox 2.8.1 due to
a bug fix. So increase the tox minversion.
[1] https://etherpad.openstack.org/p/YVR-python-pti
Change-Id: If6eded0dd802cbdfe49ad72c64004585d4a1484b
Create a tox environment for running the unit tests
against the lower bounds of the dependencies.
Create a lower-constraints.txt to be used to enforce the
lower bounds in those tests.
Add openstack-tox-lower-constraints job to the zuul
configuration.
See [1] for details.
1. http://lists.openstack.org/pipermail/openstack-dev/2018-March/128352.html
Change-Id: I0f8b1bd44cd2f401593ce079cdecce5020807051