inter

import clr

list_x=IN[0]
list_y=IN[1]
list_value=[1.5, 3.5] #один элемент, либо список
list=[]

zip=zip(list_x, list_y)
for z in list_value:
    for i in [zip]:
        for k in range(len(zip)):
            if z>i[k][0] and z<i[k+1][0]:
                result = i[k][1]+(i[k+1][1]-i[k][1])*(z-i[k][0])/(i[k+1][0]-i[k][0])
                list.append(result)

OUT=list