A bunch of comments adhering to pep8

- and some formatting fixes I believe
4 jobs for 43-unittests in 1 minute and 34 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #2153
Go-py2.7

00:01:29

passed #2154
Go-py3.4

00:01:33

passed #2155
Go-py3.5

00:01:30

passed #2156
Go-py3.6

00:01:30

74.0%