Monkey patch Braintree's Python API wrapper so results/responses are serializable.

braintree_patch.py

from types import MethodType
import braintree
import jsonpickle
import json

def serialize(self):
    """ Serialize a Braintree SuccessfulResult or ErrorResult object to a Python dict """
    return json.loads(jsonpickle.encode(self))

braintree.ErrorResult.serialize = MethodType(serialize, None, braintree.ErrorResult)
braintree.SuccessfulResult.serialize = MethodType(serialize, None, braintree.SuccessfulResult)