info about beziers.py

import bpy

obj = bpy.context.active_object

if obj.type == 'CURVE':
    for subcurve in obj.data.splines:
        curvetype = subcurve.type
        print('curve type:', curvetype)

        if curvetype == 'BEZIER':
            print("curve is closed:", subcurve.use_cyclic_u)

            # print(dir(subcurve))
            for bezpoint in subcurve.bezier_points:
                """
                'handle_left_type',      # kind of handles 
                'handle_right_type',     # 
                'hide',                  # is it hidden?
                'radius',                # what's the radius
                'select_control_point',  # is it selected?
                'select_left_handle',    #
                'select_right_handle',   #
                'tilt'                   # investigate :)

                # use     print(dir(bezpoint))  to see all
                """
                print('co', bezpoint.co)
                print('handle_left', bezpoint.handle_left)
                print('handle_right', bezpoint.handle_right)

"""
curve type: BEZIER
curve is closed: False
co <Vector (-1.0000, 0.0000, 0.0000)>
handle_left <Vector (-1.5000, -0.5000, 0.0000)>
handle_right <Vector (-0.5000, 0.5000, 0.0000)>
co <Vector (1.0000, 0.0000, 0.0000)>
handle_left <Vector (0.0000, 0.0000, 0.0000)>
handle_right <Vector (2.0000, 0.0000, 0.0000)>
curve type: BEZIER
curve is closed: False
co <Vector (-0.9387, 1.0064, 0.3927)>
handle_left <Vector (-1.1535, 0.3327, 0.3927)>
handle_right <Vector (-0.7238, 1.6800, 0.3927)>
co <Vector (1.0613, 1.0064, 0.3927)>
handle_left <Vector (0.0613, 1.0064, 0.3927)>
handle_right <Vector (2.0613, 1.0064, 0.3927)>
co <Vector (1.7982, 1.5984, 0.5769)>
handle_left <Vector (2.7749, 1.3839, 0.5769)>
handle_right <Vector (0.8215, 1.8128, 0.5769)>
curve type: BEZIER
curve is closed: True
co <Vector (-0.5928, 2.8779, 1.0686)>
handle_left <Vector (-1.1243, 3.4968, 1.0686)>
handle_right <Vector (-0.0987, 2.3027, 1.0686)>
co <Vector (1.4072, 2.8779, 1.0686)>
handle_left <Vector (0.4072, 2.3980, 1.0686)>
handle_right <Vector (2.3088, 3.3105, 1.0686)>
co <Vector (2.1441, 4.1832, 1.2528)>
handle_left <Vector (3.3460, 3.8087, 1.2528)>
handle_right <Vector (0.0999, 4.8200, 1.2528)>
"""