Python復雜對象轉JSON

在Python對于簡單的對象轉json還是比較簡單的，如下：

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

對于復雜對象，可以使用下面的方法來實現，比如：

import jsonclass 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 = homeself.office = officedef __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

結果如下

[{"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"} ]

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