fix pylint erorrs

[mgheorghe]

Row Labels	Count of problems
invalid-name	60
missing-class-docstring	24
dangerous-default-value	22
duplicate-code	22
missing-function-docstring	17
missing-module-docstring	13
no-member	8
import-error	8
no-name-in-module	6
unused-variable	5
fixme	4
too-many-locals	4
redefined-builtin	4
attribute-defined-outside-init	3
too-many-nested-blocks	2
eval-used	2
super-init-not-called	1
pointless-string-statement	1
Grand Total	202

reg exp to isolate the issues from log
^(.)((([a-z]+-)+[a-z]))$