API returns SRE_Pattern object instead of helpful message

[aeva black]

When attempting to update a node property with an invalid resource name, the error message is not helpful:

$ ironic node-update 8f68da58-3853-4a8e-a7d9-3abe96cfa607 add properties/foo:bar=baz

Invalid input for field/attribute path. Value: '/properties/foo:bar'. Value should match the pattern <_sre.SRE_Pattern object at 0x7fa0816a8810> (HTTP 400)

This should actually describe the expected format, not list the internal class name and ref.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/106995

[Lucas Alvares Gomes (lucasagomes)]

Marking as invalid in Ironic, since the bug is in WSME

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/106995
Committed: https://git.openstack.org/cgit/stackforge/wsme/commit/?id=5de10eabe1ae14c2d4e0d281f8d3a042a124ff42
Submitter: Jenkins
Branch: master

commit 5de10eabe1ae14c2d4e0d281f8d3a042a124ff42
Author: Lucas Alvares Gomes <email address hidden>
Date: Wed Nov 20 16:32:58 2013 +0000

    Fix printing object reference on StringType

    <object>.pattern is the correct pattern string from which the object
    was compiled from.

    Change-Id: I35eeca17d6edcc1a210ed7b3de2856a678fdc180
    Closes-Bug: #1340879