External DNS driver fails with Python 3.4 with an index computed with a division operation when slicing a string

[Miguel Lavalle]

The external DNS driver for Designate has method _get_in_addr_zone_name that utilizes a division operation to compute an index to slice a string. The string slicing fails if the index is not explicitly converted to int in python 3.4

[Miguel Lavalle (minsel)]

This makes python 3.4 unit tests to fail

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/290303

[Ihar Hrachyshka (ihar-hrachyshka)]

Could you please point to the failure logs?

[Ihar Hrachyshka (ihar-hrachyshka)]

OK, my understanding now is that there is no gate error for existing tests, just for new tests to be introduced. That lowers the priority here, since we never said neutron is ready to actually run with python3.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/290303
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=2dc6cb7b8d60171eb6c9edb395b3476a35c1eab2
Submitter: Jenkins
Branch: master

commit 2dc6cb7b8d60171eb6c9edb395b3476a35c1eab2
Author: Miguel Lavalle <email address hidden>
Date: Wed Mar 9 06:39:51 2016 +0000

    Fixes external DNS driver failure with Python 3.4

    The external DNS driver uses an index computed with a division to slice strings
    when calculating PTR records. In Python 3.4, this division returns a float
    instead of an int, which causes the slice operation to fail leading to Python
    3.4 unit tests to fail in Jenkins

    Change-Id: I15ec039a095e00db9087b67557f9fab997e48648
    Closes-Bug: 1554922

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/neutron 8.0.0.0rc1 release candidate.