replace asserts with ValueError or TypeError - #709

replace asserts with ValueError or TypeError#709

dwalton76 wants to merge 3 commits into

ev3dev:ev3dev-stretchev3dev/ev3dev-lang-python:ev3dev-stretchfrom

dwalton76:assert-cleanupdwalton76/ev3dev-lang-python:assert-cleanupCopy head branch name to clipboard