Andrey Skvortsov <andrej.skvortzov@gmail.com> [Tue, 22 Aug 2017 12:45:06 +0300] rev 1785
clean-up: fix PEP8 W503 line break before binary operator
Andrey Skvortsov <andrej.skvortzov@gmail.com> [Mon, 21 Aug 2017 23:22:58 +0300] rev 1784
fix codestyle issues according to PEP8