python class对象转换成json/字典

# -*- encoding: UTF-8 -*-

class Student:
    name = ''
    age = 0

    def __init__(self, name, age):
        self.name = name
        self.age = age

def convert_to_dict(obj):
    '''把Object对象转换成Dict对象'''
    dict = {}
    dict.update(obj.__dict__)
    return dict

def convert_to_dicts(objs):
    '''把对象列表转换为字典列表'''
    obj_arr = []

    for o in objs:
        #把Object对象转换成Dict对象
        dict = {}
        dict.update(o.__dict__)
        obj_arr.append(dict)

    return obj_arr

def class_to_dict(obj):
    '''把对象(支持单个对象、list、set)转换成字典'''
    is_list = obj.__class__ == [].__class__
    is_set = obj.__class__ == set().__class__

    if is_list or is_set:
        obj_arr = []
        for o in obj:
            #把Object对象转换成Dict对象
            dict = {}
            dict.update(o.__dict__)
            obj_arr.append(dict)
        return obj_arr
    else:
        dict = {}
        dict.update(obj.__dict__)
        return dict

stu = Student('zhangsan', 20)

print '-----------'
print convert_to_dict(stu)

print '-----------'
print convert_to_dicts([stu, stu]) 

print '-----------'
print class_to_dict(stu)

print '-----------'
print class_to_dict([stu, stu])

stua = Student('zhangsan', 20)
stub = Student('lisi', 10)

stu_set = set()
stu_set.add(stua)
stu_set.add(stub)
print class_to_dict(stu_set)