nova report DeprecationWarning message when using exception.message

[Eli Qiao]

taget@taget-ThinkStation-P300:~/nova$ tox -e py27 nova.tests.unit.compute.test_flavors.CreateFlavorTestCase.test_create_flavor_ram_error
py27 develop-inst-nodeps: /home/taget/nova
py27 runtests: PYTHONHASHSEED='0'
py27 runtests: commands[0] | find . -type f -name *.pyc -delete
py27 runtests: commands[1] | bash tools/pretty_tox.sh nova.tests.unit.compute.test_flavors.CreateFlavorTestCase.test_create_flavor_ram_error
running testr
running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-160} \
${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./nova/tests} --list
running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-160} \
${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./nova/tests} --load-list /tmp/tmpBqJXFX
{0} nova.tests.unit.compute.test_flavors.CreateFlavorTestCase.test_create_flavor_ram_error [0.086535s] ... ok

Captured stderr:
~~~~~~~~~~~~~~~~
    nova/tests/unit/compute/test_flavors.py:45: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
      self.assertIn("ram", e.message)

and this can be fixed by overwrite NovaException.message see [1]
[1] http://stackoverflow.com/questions/1319615/proper-way-to-declare-custom-exceptions-in-modern-python/26938914#26938914

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/177105
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=731719d4a05c12adb75cf075f769ef26e7b81ef2
Submitter: Jenkins
Branch: master

commit 731719d4a05c12adb75cf075f769ef26e7b81ef2
Author: Eli Qiao <email address hidden>
Date: Fri Apr 24 15:47:33 2015 +0800

    Overwrite NovaException message

    I see nova reports DeprecationWarning message when using exception.message.

    DeprecationWarning: BaseException.message has been deprecated as of Python 2.6

    This can be fixed by overwrite message in our Nova base Exception.

    Closes-Bug: #1447946
    Change-Id: I7270e06622131af1565f748f69aa3497ca7ef4d2