tree 6216044861b8f6d143112b020bd6a4504e133258
parent efc7fefcd0732531e5822d73641a87d2befa031c
author Luong Anh Tuan <tuanla@vn.fujitsu.com> 1473672734 +0700
committer Luong Anh Tuan <tuanla@vn.fujitsu.com> 1473672734 +0700

Replace six iteration methods with standard ones

1.As mentioned in [1], we should avoid using six.iterXXX
to achieve iterators. We can use dict.XXX instead, as it will
return iterators in PY3 as well.

2.In py2, the performance about list should be negligible,
see the link [2].

[1] https://wiki.openstack.org/wiki/Python3
[2] http://lists.openstack.org/pipermail/openstack-dev/2015-June/066391.html

Change-Id: I801290be0a2afa929a657821c419f935a908c5b4