我需要使用Python将以下数据写入yaml文件:
{A:a, B:{C:c, D:d, E:e}}
即字典中的字典。我怎样才能实现这个目标?
import yaml
data = dict(
A = 'a',
B = dict(
C = 'c',
D = 'd',
E = 'e',
)
)
with open('data.yml', 'w') as outfile:
yaml.dump(data, outfile, default_flow_style=False)
default_flow_style=False
参数对于生成您想要的格式(流样式)是必需的,否则对于嵌套集合,它会生成块样式:
A: a
B: {C: c, D: d, E: e}
链接到 PyYAML 文档,显示
default_flow_style
参数的差异。
以块模式将其写入文件(通常更具可读性):
d = {'A':'a', 'B':{'C':'c', 'D':'d', 'E':'e'}}
with open('result.yml', 'w') as yaml_file:
yaml.dump(d, yaml_file, default_flow_style=False)
产生:
A: a
B:
C: c
D: d
E: e
截至 2024 年,我必须使用
sort_keys=False
来维护字典中的特定顺序,即:
import yaml
data = {
"mode" : 'separate-outputs',
"parent" : 'd93fca33ec026010b521b3587beb5897dff43189a8e1b4da078846c40d680dcei0',
"postage" : 690,
"inscriptions" : [
{"file": "mango.avif", "metadata": {"title": "test"}},
{"file": "mango2.avif", "metadata": {"title": "test"}},
]
}
with open('data.yml', 'w') as outfile:
yaml.dump(data, outfile, default_flow_style=False, sort_keys=False)
mode: separate-outputs
parent: d93fca55ec026010b521b3587beb5897dff43189a8e1b4da078846c40d680dcei0
postage: 690
inscriptions:
- file: mango.avif
metadata:
title: test
- file: mango2.avif
metadata:
title: test