networkx 1.10 is not compatible with Python 2.6

[Sebastian Kalinowski]

When installing nailgun there is an error caused by networkx requirement:

Downloading/unpacking networkx>=1.8
  Downloading networkx-1.10.tar.gz (1.2MB): 1.2MB downloaded
  Running setup.py (path:/Users/prmtl/.virtualenvs/tmp-5a97492a945487e3/build/networkx/setup.py) egg_info for package networkx
    NetworkX requires Python 2.7 or later (2.6 detected).
    Complete output from command python setup.py egg_info:
    NetworkX requires Python 2.7 or later (2.6 detected).

Failed CI jobs:
 * https://ci.fuel-infra.org/job/nailgun_performance_tests/206/
 * https://ci.fuel-infra.org/job/gate-fuel-web/490/consoleText

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/208350

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/208357

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/208350
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=c0bd5b4ccb2cd55e076634c65ab9bc2da6ae39f5
Submitter: Jenkins
Branch: master

commit c0bd5b4ccb2cd55e076634c65ab9bc2da6ae39f5
Author: Sebastian Kalinowski <email address hidden>
Date: Mon Aug 3 09:44:30 2015 +0200

    Pin networkx version below 1.10

    networkx is not compatible with Python 2.6 starting with version 1.10

    Change-Id: Icd41b40b453079d8cbed427df449dd0226426f2b
    Closes-Bug: #1480793

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/208357
Committed: https://git.openstack.org/cgit/stackforge/fuel-tasklib/commit/?id=9e41ce127f51361274a8d8e9af63da6f832ced71
Submitter: Jenkins
Branch: master

commit 9e41ce127f51361274a8d8e9af63da6f832ced71
Author: Sebastian Kalinowski <email address hidden>
Date: Mon Aug 3 09:47:20 2015 +0200

    Pin networkx version below 1.10

    networkx is not compatible with Python 2.6 starting with version 1.10

    Change-Id: Id54645863ce8f96ef4e91f6d3534ad7ab6fd9f29
    Closes-Bug: #1480793

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/6.1
Review: https://review.openstack.org/236903

[Denis Meltsaykin (dmeltsaykin)]

Aleksandra, could you please clarify how this bug(?) affects anyone and what should Maintenance Team do?

[OpenStack Infra (hudson-openstack)]

Change abandoned by Aleksandra Fedorova (<email address hidden>) on branch: stable/6.1
Review: https://review.openstack.org/236903
Reason: requirements.txt is fixed already

[Aleksandra Fedorova (bookwar)]

requirements.txt has already been fixed in 6.1 branch