Question

我正在尝试使用ruamel.yaml将python字典写入yaml文件。我需要一些字符串被明确地引号，因此我将它们传递给ruamel.yaml.scalarstring.DoubleQuotedScalarString，它将输出中的双引号引起来。但是，覆盖多行的字符串在输出中包含\字符。我该如何预防？

在将字符串传递给ruamel.yaml.scalarstring.DoubleQuotedScalarString并将其替换为''之后，我尝试使用正则表达式搜索\，但这不起作用。我认为这些字符是在转储时添加的。

S = ruamel.yaml.scalarstring.DoubleQuotedScalarString
string = "The Parkinson's Disease Sleep Scale-Validation (PDSS-2) is a scale used to characterise and quantify the various aspects of nocturnal sleep problems in Parkinson's disease (PD). The PDSS-2 is a revised version of the Parkinson's Disease Sleep Scale (PDSS)."
st = S(string)
data = {'key': st}

f = open('./yam.yaml', 'w')
yaml= YAML()
yaml.default_flow_style = False
yaml.indent(offset = 2, sequence = 4, mapping = 2)
yaml.dump(data, f)

预期：

key: "The Parkinson's Disease Sleep Scale-Validation (PDSS-2) is a scale used to characterise and quantify the various aspects of nocturnal sleep problems in Parkinson's disease (PD). The PDSS-2 is a revised version of the Parkinson's Disease Sleep Scale (PDSS)."

实际：

key: "The Parkinson's Disease Sleep Scale-Validation (PDSS-2) is a scale used to characterise\
  \ and quantify the various aspects of nocturnal sleep problems in Parkinson's disease\
  \ (PD). The PDSS-2 is a revised version of the Parkinson's Disease Sleep Scale (PDSS)."

Answer 1

您看到的是由换行引起的，该换行试图将输出中的行长度限制为默认的80个字符。

如果您可以承受更大的输出，则只需将yaml.width设置为更大的值：

import sys
import ruamel.yaml
YAML = ruamel.yaml.YAML

S = ruamel.yaml.scalarstring.DoubleQuotedScalarString
string = "The Parkinson's Disease Sleep Scale-Validation (PDSS-2) is a scale used to characterise and quantify the various aspects of nocturnal sleep problems in Parkinson's disease (PD). The PDSS-2 is a revised version of the Parkinson's Disease Sleep Scale (PDSS)."
st = S(string)
data = {'key': st}

yaml= YAML()
yaml.width = 2048
yaml.default_flow_style = False
yaml.indent(offset = 2, sequence = 4, mapping = 2)
yaml.dump(data, sys.stdout)

给出：

key: "The Parkinson's Disease Sleep Scale-Validation (PDSS-2) is a scale used to characterise and quantify the various aspects of nocturnal sleep problems in Parkinson's disease (PD). The PDSS-2 is a revised version of the Parkinson's Disease Sleep Scale (PDSS)."

当我使用ruamel.yaml.scalarstring.DoubleQuotedScalarString时，如何防止换行\字符输出到YAML？

1 个答案: