pep8: Manually resolve remaining issues

pep8: Manually resolve remaining issues

The 'autopep8' tool can't do everything, and it is necessary to resolve
some final issues. Most of these issues fall under the following
categories:

  E501  line too long
  E241  multiple spaces after ','
  F401  'module' imported but unused
  F841  local variable 'name' is assigned to but never used

It is also necessary to insert '# noqa' comments to hide some F403
errors ('unable to detect undefined names') where 'import *' is useful.

Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>