[issue16960] Fix PEP8 errors everywhere

[Ezio Melotti]

Ezio Melotti added the comment:

Several reasons, e.g.:
 * there's the risk of introducing new bugs;
 * it makes merging more difficult;
 * it takes time to produce and review the patches;
 * it makes hg annotate harder to use;

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16960>
_______________________________________