python 字典转json的问题

[dreambulare]

我现在有个字典
hc = [(76670, 2), (76678, 1), (87559, 1), (89674, 1), (12689, 1), (74718, 1)]
每对为 id,值 对
我现在希望输出json格式是类似{'itemid':76670,'quantity':2}这样的json，除了手动拼接，有没有简便的方法？

[dreambulare]

引用 3 楼 panghuhu250 的回复:

In [19]: hc = [(76670, 2), (76678, 1), (87559, 1), (89674, 1), (12689, 1), (74718, 1)]

In [20]: import json

In [21]: json1 = json.dumps([{'itemid': v, 'quantity':i} for v, i in hc])

In [22]: json1
Out[22]: '[{"itemid": 76670, "quantity": 2}, {"itemid": 76678, "quantity": 1}, {"itemid": 87559, "quantity": 1}, {"itemid": 89674, "quantity": 1}, {"itemid": 12689, "quantity": 1}, {"itemid": 74718, "quantity": 1}]'

原来python还能这么用。。。多谢！

[惟愿莲心不染尘]

其实还是手动拼接-。-

[The_Third_Wave]

json库，看一下

[惟愿莲心不染尘]

手动拼下也不复杂吧 特殊的格式必然要特殊的处理方式

[panghuhu250]

In [19]: hc = [(76670, 2), (76678, 1), (87559, 1), (89674, 1), (12689, 1), (74718, 1)]

In [20]: import json

In [21]: json1 = json.dumps([{'itemid': v, 'quantity':i} for v, i in hc])

In [22]: json1
Out[22]: '[{"itemid": 76670, "quantity": 2}, {"itemid": 76678, "quantity": 1}, {"itemid": 87559, "quantity": 1}, {"itemid": 89674, "quantity": 1}, {"itemid": 12689, "quantity": 1}, {"itemid": 74718, "quantity": 1}]'