def default(self, o):
        raise TypeError(repr(o) + " is not JSON serializable")
put container with next storage policy
dataset/ETHPy150Open kennethreitz/tablib/tablib/packages/omnijson/packages/simplejson/encoder.py/JSONEncoder.default--crossover with--dataset/ETHPy150Open openstack/swift/test/probe/brain.py/BrainSplitter.put_container