python-3.x 在使用ruamel.yaml时，如何在YAML文件的值周围保留或添加引号，而又不会产生去掉注解的副作用？

zc0qhyus 于 2022-12-24 发布在 Python

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我正在尝试生成一个YAML文件，它不会与这里描述的Norway问题相冲突：https://hitchdev.com/strictyaml/why/implicit-typing-removed/
我在python 3.8中运行ruamel.yaml0.17.21。
下面是我正在运行的代码：

import sys
from ruamel.yaml import YAML, round_trip_dump

data = [
    [1, """first value""", "first comment"],
    [2, '"second value"', "second comment"],
    ["abc", "None", 'this is a "comment"'],
    ["""def1""", "None", 'this is a "comment"'],
]
yaml = YAML()
yaml.preserve_quotes = True
code = yaml.load(
    """\
    en:
    """
)
for i, item in enumerate(data):
    code.insert(i + 1, str(item[0]), "" + str(item[1]) + "", comment=item[2])

print("\nthis strips quotes; but preserves comments:")
yaml.dump(code, sys.stdout)

print("\nthis preserves quotes; but strips comments:")
round_trip_dump(code, sys.stdout, default_style="'")

print("\ndesired result:")
print(
    "'en':\n
    '1': 'first value'  # first comment\n
    '2': 'second value' # second comment\n
    'abc': 'None' # this is a ""comment""\n
    'def1': 'None' # this is a ""comment"""
)

python-3.x

来源：https://stackoverflow.com/questions/74878166/how-can-i-preserve-or-add-quotes-around-values-in-a-yaml-file-without-stripping

1条答案

按热度按时间

e4yzc0pl1#

感谢@Anthon和@JonSG的建设性反馈，基于此，我找到了这篇文章How to correctly output strings with ruamel.yaml
因此，我的工作解决办法是：

import sys
from ruamel.yaml import YAML, scalarstring

DQ = scalarstring.DoubleQuotedScalarString

data = [
    [1, """first value""", "first comment"],
    [2, '"second value"', "second comment"],
    ["abc", "None", 'this is a "comment"'],
    ["""def1""", "None", 'this is a "comment"'],
]
yaml = YAML()
code = yaml.load(
    """\
    en:
    """
)
for i, item in enumerate(data):
    code.insert(i + 1, DQ(item[0]), DQ(str(item[1])), comment=item[2])

yaml.dump(code, sys.stdout)

"""
which produces:

en:
"1": "first value"  # first comment
"2": "\"second value\"" # second comment
"abc": "None" # this is a "comment"
"def1": "None" # this is a "comment"
"""

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python-3.x 在使用ruamel.yaml时，如何在YAML文件的值周围保留或添加引号，而又不会产生去掉注解的副作用？

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