cdpyr.sandbox.streams.py

import cdpyr
from sample import robots
# from prettyprinter import pprint
from marshmallow import pprint, Schema


def main():
    # c = cdpyr.robot.Cable(diameter=6.0/1000)
    # cblschm: cdpyr.robot.CableSchema = cdpyr.robot.CableSchema()
    # jsn = cblschm.dump(c)
    # pprint(jsn.data)
    #
    # o = cblschm.load(jsn.data)
    # pprint(o.data)
    #
    # get a sample robot
    r = robots.ipanema_cuboid()
    rschema = cdpyr.robot.RobotSchema()

    # create an streams object
    stream = cdpyr.streams.Stream(cdpyr.streams.parser.JSON())

    # encode to a string
    encoded_str = stream.encodes(r)
    pprint(encoded_str)
    # decode from a string
    robot = stream.decodes(encoded_str)
    pprint(robot)

    # # encode to a file
    # streams.encode(r, open('robot.json', 'w'))
    # # decode from a file
    # robot = streams.decode(open('robot.json', 'r'))


if __name__ == "__main__":
    main()

Create directory sandbox, save file as streams.py and then run it.
Noe you'll need https://gist.github.com/philipptempel/b5fc4a185b6317aa86bb45cdc29e8517