fix computation for newer RASPIAN where bc is missing, so we use python now still need to fix this for py2 vs. py3
fix computation for newer RASPIAN where bc is missing, so we use python now
still need to fix this for py2 vs. py3

teuben/masc,teuben/pyASC,teuben/masc,warnerem/pyASC,teuben/pyASC,teuben/pyASC,warnerem/pyASC,teuben/pyASC,warnerem/pyASC,teuben/masc,warnerem/pyASC,teuben/pyASC,warnerem/pyASC,teuben/pyASC,teuben/pyASC,warnerem/pyASC,warnerem/pyASC