Remove unused imports
Remove excess whitespace
Remove superfluous comment symbols
Extract 'string_types' as found in six

--HG--
extra : amend_source : bc3899e5cb7dffb9e80f8968aec44c42b8749d5e
Use eval to avoid linter warnings

--HG--
extra : amend_source : c60ab5f500a6bfc5f2188b2b5f5422d72ee1bd90
Remove superfluous parentheses
Added tag 1.1.5.jaraco.20140924 for changeset 3a0f5ccd5ff2