xVar = [1, 200, 300, 10]
yVar = [150, 100, 50, 200]
xyVar = zip(xVar, yVar)
xyVar
xyFiltered = [(x, y) for x, y in xyVar if y <= 100]
xyFiltered
xVar, yVar = zip(*xyFiltered)
python: How to remove values from 2 lists based on what's in 1 list