Example of Python's method for implementing complex objects to JSON

This article illustrates Python's method of converting complex objects to JSON. To share for your reference, specific as follows:

In Python, it is relatively simple to rotate json for simple objects, as follows:

import json
d = {'a': 'aaa', 'b': ['b1', 'b2', 'b3'], 'c': 100}
json_str = json.dumps(d)
print json_str

For complex objects, the following methods can be used, such as:

import json
class Customer:
  def __init__(self, name, grade, age, home, office):
    self.name = name
    self.grade = grade
    self.age = age
    self.address = Address(home, office)
  def __repr__(self):
    return repr((self.name, self.grade, self.age, self.address.home, self.address.office))
class Address:
  def __init__(self, home, office):
    self.home = home
    self.office = office
  def __repr__(self):
    return repr((self.name, self.grade, self.age))
customers = [
    Customer('john', 'A', 15, '111', 'aaa'),
    Customer('jane', 'B', 12, '222', 'bbb'),
    Customer('dave', 'B', 10, '333', 'ccc'),
    ]
json_str = json.dumps(customers, default=lambda o: o.__dict__, sort_keys=True, indent=4)
print json_str

The results are as follows

[
  {
    "address": {
      "home": "111",
      "office": "aaa"
    },
    "age": 15,
    "grade": "A",
    "name": "john"
  },
  {
    "address": {
      "home": "222",
      "office": "bbb"
    },
    "age": 12,
    "grade": "B",
    "name": "jane"
  },
  {
    "address": {
      "home": "333",
      "office": "ccc"
    },
    "age": 10,
    "grade": "B",
    "name": "dave"
  }
]

PS: About json operation, here are some more practical json online tools for your reference:

Online JSON code inspection, inspection, beautification, formatting tools:
http://tools.ofstack.com/code/json

JSON Online formatting tools:
http://tools.ofstack.com/code/jsonformat

Online XML/JSON interconversion tool:
http://tools.ofstack.com/code/xmljson

json code online formatting/beautification/compression/editing/conversion tools:
http://tools.ofstack.com/code/jsoncodeformat

Online json compression/escape tool:
http://tools.ofstack.com/code/json_yasuo_trans

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I hope this article has been helpful in Python programming.