How to generate a Python object from JSON

json – JavaScript Object Notation Serializer -Python Module of the Week Is a sutra copy of

Please refer to How to create a Perl object from JSON -Qiita for some explanation.

class MyObj(object):
    def __init__(self, s, y):
        self.s = s
        self.y = y

    def __repr__(self):
        return '<MyObj(%s)>' % self.s

def main():
    import json

    obj = MyObj('instance value goes here', "a")

    # print('First attempt')
    except TypeError, err:
        print("ERROR:", err)

    def convert_to_builtin_type(obj):
        # print('default(', repr(obj), ')')
        # Convert objects to a dictionary of their representation
        d = {'__class__': obj.__class__.__name__,
             '__module__': obj.__module__,
        return d

    def dict_to_object(d):
        if '__class__' in d:
            class_name = d.pop('__class__')
            module_name = d.pop('__module__')
            module = __import__(module_name)
            # print('MODULE:', module)
            class_ = getattr(module, class_name)
            # print('CLASS:', class_)
            args = dict((key.encode('ascii'), value) for key, value in d.items())
            # print('INSTANCE ARGS:', args)
            inst = class_(**args)
            inst = d
        return inst

    # print('With default')

    json_txt = json.dumps(obj, default=convert_to_builtin_type)

    obj2 = json.loads(json_txt, object_hook=dict_to_object)

if __name__ == '__main__':

<MyObj(instance value goes here)>
ERROR: <MyObj(instance value goes here)> is not JSON serializable
{"y": "a", "s": "instance value goes here", "__module__": "__main__", "__class__": "MyObj"}
<MyObj(instance value goes here)>
instance value goes here

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