ImportError: No module named metaclasses

[Maksim Malchuk]

Both 10.0.custom.ubuntu.bvt_2 and 10.0.custom.system_test are broken due an error with fuel-qa/fuel-devops:

https://custom-ci.infra.mirantis.net/job/10.0.custom.system_test/1193/console

+ export PYTHONPATH=/home/jenkins/workspace/10.0.custom.system_test
+ echo /home/jenkins/workspace/10.0.custom.system_test
/home/jenkins/workspace/10.0.custom.system_test
+ python run_system_test.py run -q --nologcapture --with-xunit --group=bvt_2
Traceback (most recent call last):
  File "run_system_test.py", line 13, in <module>
    from fuelweb_test.helpers.utils import pretty_log
  File "/home/jenkins/workspace/10.0.custom.system_test/fuelweb_test/helpers/utils.py", line 51, in <module>
    from fuelweb_test.helpers.ssh_manager import SSHManager
  File "/home/jenkins/workspace/10.0.custom.system_test/fuelweb_test/helpers/ssh_manager.py", line 28, in <module>
    from devops.helpers.metaclasses import SingletonMeta
ImportError: No module named metaclasses
+ ec=1

https://custom-ci.infra.mirantis.net/job/10.0.custom.ubuntu.bvt_2/292/console

+ export PYTHONPATH=/home/jenkins/workspace/10.0.custom.ubuntu.bvt_2
+ echo /home/jenkins/workspace/10.0.custom.ubuntu.bvt_2
/home/jenkins/workspace/10.0.custom.ubuntu.bvt_2
+ python run_system_test.py run -q --nologcapture --with-xunit --group=bvt_2
Traceback (most recent call last):
  File "run_system_test.py", line 13, in <module>
    from fuelweb_test.helpers.utils import pretty_log
  File "/home/jenkins/workspace/10.0.custom.ubuntu.bvt_2/fuelweb_test/helpers/utils.py", line 51, in <module>
    from fuelweb_test.helpers.ssh_manager import SSHManager
  File "/home/jenkins/workspace/10.0.custom.ubuntu.bvt_2/fuelweb_test/helpers/ssh_manager.py", line 28, in <module>
    from devops.helpers.metaclasses import SingletonMeta
ImportError: No module named metaclasses
+ ec=1

===============================
The same error for 9.1 env:
ci-team: and this strange thing with virtual env https://product-ci.infra.mirantis.net/view/9.x_swarm/job/9.x.system_test.ubuntu.ha_neutron/56/console

[11:43]
https://product-ci.infra.mirantis.net/view/9.x_swarm/job/9.x.system_test.ubuntu.cic_maintenance_mode/56/console

Dmitry Kaigarodtsev [11:44 AM]
@nurla https://product-ci.infra.mirantis.net/view/9.x_swarm/job/9.x.system_test.ubuntu.ha_neutron/57/console
affected slave mentioned in failed runs has been exluded from the pool for investigation (edited)

[Aleksei Stepanov (penguinolog)]

Inconsistent venv: devops < 2.9.23

[Nastya Urlapova (aurlapova)]

Nastya Urlapova [11:41 AM]
ci-team: and this strange thing with virtual env https://product-ci.infra.mirantis.net/view/9.x_swarm/job/9.x.system_test.ubuntu.ha_neutron/56/console

[11:43]
https://product-ci.infra.mirantis.net/view/9.x_swarm/job/9.x.system_test.ubuntu.cic_maintenance_mode/56/console

Dmitry Kaigarodtsev [11:44 AM]
@nurla https://product-ci.infra.mirantis.net/view/9.x_swarm/job/9.x.system_test.ubuntu.ha_neutron/57/console
affected slave mentioned in failed runs has been exluded from the pool for investigation (edited)

[Roman Vyalov (r0mikiam)]

@Nastya this bug related to the custom-ci for 10.0 (from description) and 9.x from bug series. But this bug dont affect 9.x swarm.
@Sergey because of this i think its not a qa blocker

[Dmitry Kaigarodеsev (dkaiharodsev)]

both times venv issue had found on srv82-bud.infra.mirantis.net
'fuel-devops' used on that slave was:

(venv-nailgun-tests-2.9)root@srv82-bud:~# dos.py version
2.9.21

so 'fuel-devops' has been updated:
(venv-nailgun-tests-2.9)dkaiharodsev@srv82-bud:~$ dos.py version
2.9.23