code: def distance(line, point):
      
      x0, y0, x1, y1 = line
      try:
          p1, p2 = point
      except ValueError:
          # line is given instead of point
          p1, p2 = middle(point)
      n1 = ascent(line)
      n2 = -1
      n0 = y0 - n1 * x0
      return abs(n1 * p1 + n2 * p2 + n0) / (n1 ** 2 + n2 ** 2) ** 0.5
docs: infinite line to point or line to line distance
      is point is given as line - use middle point of that liune