Andrey Skvortsov <andrej.skvortzov@gmail.com> [Mon, 21 Aug 2017 23:22:58 +0300] rev 1784
fix codestyle issues according to PEP8
Andrey Skvortsov <andrej.skvortzov@gmail.com> [Mon, 21 Aug 2017 22:41:37 +0300] rev 1783
clean-up: fix PEP8 E402 module level import not at top of file