Python：json文件转yaml文件

# !usr/bin/env python
# -*- coding:UTF-8 -*-
import json
from ruamel import yaml


def json2yaml(in_file):
    try:
        with open(in_file, 'r', encoding='utf-8') as f:
            data = json.load(f)
    except FileNotFoundError:
        print('无法打开指定文件')

    try:
        with open('out.yaml', 'w', encoding='utf-8') as fw:
            yaml.dump(data, fw, Dumper=yaml.RoundTripDumper, allow_unicode=True)
    except:
        print('无法写入文件！')


"""
字典是无序的 如何保证写出到yaml是顺序是正确的 ===>> 导入模块：ruamel.yaml
"""
if __name__ == '__main__':
    json2yaml('in.json')

另外，使用OrderedDict可以得到一个有序的字典：

from collections import OrderedDict
dd = OrderedDict()
dd[xxx] = 'yyy'
dd[yyy] = 'xxx'

附ruamel模块连接：https://yaml.readthedocs.io/en/latest/install.html