client.logger.warning wrongly used in migrations.py

[NidhiMittalHada]

In file https://github.com/openstack/python-novaclient/blob/master/novaclient/v2/migrations.py

on this line https://github.com/openstack/python-novaclient/blob/master/novaclient/v2/migrations.py#L44

code is written as

        if cell_name:
            self.client.logger.warning(_("Argument 'cell_name' is "
                                         "deprecated since Pike, and will "
                                         "be removed in a future release."))

where in client does not have any handler named as logger.

This below error comes if this code reaches:
No handlers could be found for logger "novaclient.v2.client""

This code is never tested as no test case is written to confirm if this warning is ever called.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/463508

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/463508
Committed: https://git.openstack.org/cgit/openstack/python-novaclient/commit/?id=9a272014167390217351dd5a60f50f518f4ae600
Submitter: Jenkins
Branch: master

commit 9a272014167390217351dd5a60f50f518f4ae600
Author: nidhimittalhada <email address hidden>
Date: Tue May 9 15:20:49 2017 +0530

    client.logger.warning wrongly used in migrations

    client.logger.warning if reached, will give
    this error "No handlers could be found for
    logger "novaclient.v2.client"".

    Fixed by using warnings.warn() and corrected
    root cause by adding appropriate handlers.

    Change-Id: I60c8a023cff92f8b6f37a4a14b6193c3efaa19a8
    Closes-Bug: #1688507

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-novaclient 9.0.0 release.