old_contents: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  
  from .vector import Vector
  from .point import Point
  from .line import Line
  from .plane import Plane
  from .frame import Frame
  from .polyline import Polyline
  from .polygon import Polygon
  from .polyhedron import Polyhedron
  from .circle import Circle
  from .curve import Bezier
  
  from .box import Box
  
  
  __all__ = [name for name in dir() if not name.startswith('_')]
  
new_contents: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  
  
  from .vector import Vector
  from .point import Point
  from .line import Line
  from .plane import Plane
  from .frame import Frame
  from .polyline import Polyline
  from .polygon import Polygon
  from .polyhedron import Polyhedron
  from .circle import Circle
  from .curve import Bezier
  from .sphere import Sphere
  
  from .box import Box
  
  
  __all__ = [name for name in dir() if not name.startswith('_')]
  
subject: Update __init__.py