CadQuery minimal sketch from segment() lines example

This code creates a sketch from four segment lines forming a rectangle (given the four sets of X/Y coordinates). The segments are then assembled into a face and extruded.

import cadquery as cq

xstart = 1.0
height = 4.0
width = 1.0
obj = (cq.Workplane("YZ")
    .segment((xstart, 0), (xstart, height))
    .segment((xstart + width, height))
    .segment((xstart + width, 0))