This Patch fixes pep8 errors and
enables this tests for all new patches to tacker.
E125 continuation line does not distinguish itself from next logical line
E126 continuation line over-indented for hanging indent
E129 visually indented line with same indent as next logical line
H302 import only modules
H904 Wrap long lines in parentheses instead of a backslash
see OpenStack Style Guidelines
http://docs.openstack.org/developer/hacking/
Change-Id: I29e8ac8e6cfcd547e9bdab599635d07f0df6e3d6
Related-Bug: 1515930