code: def section_meander_angles(section):
      '''Inter-segment opening angles in a section'''
      p = section.points
      return [mm.angle_3points(p[i - 1], p[i - 2], p[i])
              for i in range(2, len(p))f section_meander_angles(section):
      '''Inter-segment opening angles in a section'''
      p = section.points
      return [mm.angle_3points(p[i - 1], p[i - 2], p[i])
              for i in range(2, len(p))]
docs: Inter-segment opening angles in a section