With R2.20 74 onwards, on CentOS 6.5, discovery fails

[Vedamurthy Joshi]

R2.20 74 or 75, Centos 6.5

Looks like list-comprehension issue with python 2.6

http://anamika.englab.juniper.net:8080/job/centos65_icehouse_Multi_Node_Sanity/375/

This commit caused the breakage :
https://github.com/Juniper/contrail-controller/commit/07e421a4d7ac419dc2cc64cf7ee6137cc9249dc5

Traceback (most recent call last):
  File "/usr/bin/contrail-discovery", line 9, in <module>
    load_entry_point('discovery==0.1dev', 'console_scripts', 'contrail-discovery')()
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 299, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 2229, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 1948, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/usr/lib/python2.6/site-packages/discovery/disc_server.py", line 653
    lb_list = {item['service_id']:(item['in_use']-int(avg_per_pub)) for item in pubs_active if item['in_use'] > int(1.05*avg_per_pub)}
                                                                      ^
SyntaxError: invalid syntax

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/12814
Submitter: Deepinder Setia (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/12814
Committed: http://github.org/Juniper/contrail-controller/commit/f95df9d18b314bd08108ab6ce3f6b753711579e0
Submitter: Zuul
Branch: R2.20

commit f95df9d18b314bd08108ab6ce3f6b753711579e0
Author: Deepinder Setia <email address hidden>
Date: Mon Aug 3 13:17:05 2015 -0700

bug 1480883: get rid of dict comprehension and build the dict using for loop

Change-Id: Ibc01e92c4a7191ef082af3b2756bbc43a9b156be

[Pavana (pavanap)]

Happening on mainline as well, observed on 3.0 2638. Can the commit be extended to master too?
Bug #1488020

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/13927
Submitter: Vinay Vithal Mahuli (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/17295
Submitter: Deepinder Setia (<email address hidden>)