Add python3 in test target
Fix Python3 rejected wrong import path
Fix Python3 integer division
Fix Python3 deprecated unit test assertions
Fix exception for unfound port on Linux
Fix Python3 bytes vs strings problems
Fix Python3 import errors
Fix parsing error on Python3
Deal with iterator next() change in Python3
Simplify extrema detection
Deal with Python3 map and zip returning iterables

Python returns lists with these methods.