deploy_cinder_net_tmpl.deploy_cinder_net_tmpl failed with attr error

[Tatyanka]

https://product-ci.infra.mirantis.net/job/9.0.system_test.ubuntu.network_templates/41/testReport/(root)/deploy_cinder_net_tmpl/deploy_cinder_net_tmpl/
failed with
Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 331, in run
    testMethod()
  File "/usr/lib/python2.7/unittest/case.py", line 1043, in runTest
    self._testFunc()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.network_templates/fuelweb_test/helpers/decorators.py", line 83, in wrapper
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.network_templates/fuelweb_test/tests/test_net_templates.py", line 89, in deploy_cinder_net_tmpl
    ip_prefixlen='24')
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.network_templates/fuelweb_test/__init__.py", line 59, in wrapped
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.network_templates/fuelweb_test/tests/test_net_templates_base.py", line 61, in generate_networks_for_template
    ip_subnet = ip_subnets.pop()
AttributeError: 'generator' object has no attribute 'pop'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/291698

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/291698
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=290a20775e50668278cd80b6a4953968db5fd06a
Submitter: Jenkins
Branch: master

commit 290a20775e50668278cd80b6a4953968db5fd06a
Author: Dmitry Tyzhnenko <email address hidden>
Date: Fri Mar 11 14:34:41 2016 +0200

    Wrap generator into list

    Method generate_networks_for_template in TestNetworkTemplatesBase
        use pop() method to fetch subnets. But netaddr.Network.subnet
        return generetor.

    Change-Id: I1ad457557914d89ff2b6fcbba3a638aa7d038253
    Closes-bug: #1556054

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/292295

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/292295
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=e07b35a2e0ab36db5f98523cd62045de826a8658
Submitter: Jenkins
Branch: master

commit e07b35a2e0ab36db5f98523cd62045de826a8658
Author: Alexey Stepanov <email address hidden>
Date: Mon Mar 14 11:31:15 2016 +0300

    Pylint: fix trivial issues 6

    fix: usage generator as list
    Related-bug: #1556791
    Closes-bug: #1556054
    Change-Id: Iff7b562e599ac1b81f6043f5ec69a6dbc4a86669

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/8.0
Review: https://review.openstack.org/344035

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/344035
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=78fc20e41cb6a568093e942fcd5a8cdab90f0a3e
Submitter: Jenkins
Branch: stable/8.0

commit 78fc20e41cb6a568093e942fcd5a8cdab90f0a3e
Author: Dmitry Tyzhnenko <email address hidden>
Date: Fri Mar 11 14:34:41 2016 +0200

    Wrap generator into list

    Method generate_networks_for_template in TestNetworkTemplatesBase
        use pop() method to fetch subnets. But netaddr.Network.subnet
        return generetor.

    Change-Id: I1ad457557914d89ff2b6fcbba3a638aa7d038253
    Closes-bug: #1556054
    (cherry picked from commit 290a20775e50668278cd80b6a4953968db5fd06a)