Python class to JSON -

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• how make class json serializable 20 answers

i have requirement i'd construct lot of json objects. , there many different definitions , ideally want manage them classes , construct objects , dump them json on demand.

is there existing package/recipe let's me following

for keeping simple lets need represent people working, studying or both:

[{   "name": "foo",   "jobinfo": {     "jobtitle": "sr manager",     "salary": 4455   },   "name": "bar",   "courseinfo": {     "coursetitle": "intro 101",     "units": 3 }] 

i'd create objects can dump valid json, created regular python classes.

i'd define classes db model:

class person:   name = string()   jobinfo = job()   courseinfo = course()  class job:   jobtitle = string()   salary = integer()  class course:   coursetitle = string()   units = integer()  persons = [person("foo", job("sr manager", 4455)), person("bar", course("intro 101", 3))] person_list = list(persons) print person_list.to_json()  # should print json example above 

edit

i wrote own mini-framework accomplish this. available via pip

pip install pymodjson

code , examples available here: (mit) https://github.com/saravanareddy/pymodjson

you can create json filtering __dict__ of object.

the working code:

import json  class person(object):     def __init__(self, name, job=none, course=none):         self.name = name         self.jobinfo = job         self.courseinfo = course      def to_dict(self):         _dict = {}         k, v in self.__dict__.iteritems():             if v not none:                 if k == 'name':                     _dict[k] = v                 else:                     _dict[k] = v.__dict__         return _dict  class job(object):     def __init__(self, title, salary):         self.jobtitle = title         self.salary = salary  class course(object):     def __init__(self, title, units):         self.coursetitle = title         self.units = units  persons = [person("foo", job("sr manager", 4455)), person("bar", course("intro 101", 3))] person_list = [person.to_dict() person in persons] print json.dumps(person_list)