问题描述
我希望能够转储包含长字符串的字典,我希望在块样式中具有可读性.例如:
I'd like to be able to dump a dictionary containing long strings that I'd like to have in the block style for readability. For example:
foo: | this is a block literal bar: > this is a folded block
PyYAML 支持加载具有这种样式的文档,但我似乎找不到以这种方式转储文档的方法.我错过了什么吗?
PyYAML supports the loading of documents with this style but I can't seem to find a way to dump documents this way. Am I missing something?
推荐答案
import yaml class folded_unicode(unicode): pass class literal_unicode(unicode): pass def folded_unicode_representer(dumper, data): return dumper.represent_scalar(u'tag:yaml.org,2002:str', data, style='>') def literal_unicode_representer(dumper, data): return dumper.represent_scalar(u'tag:yaml.org,2002:str', data, style='|') yaml.add_representer(folded_unicode, folded_unicode_representer) yaml.add_representer(literal_unicode, literal_unicode_representer) data = { 'literal':literal_unicode( u'by hjw ___ ' ' __ /.-.\ ' ' / )_____________\\ Y ' ' /_ /=== == === === =\ _\_ ' '( /)=== == === === == Y \ ' ' `-------------------( o ) ' ' \___/ '), 'folded': folded_unicode( u'It removes all ordinary curses from all equipped items. ' 'Heavy or permanent curses are unaffected. ')} print yaml.dump(data)
结果:
folded: > It removes all ordinary curses from all equipped items. Heavy or permanent curses are unaffected. literal: | by hjw ___ __ /.-. / )_____________\ Y /_ /=== == === === = _\_ ( /)=== == === === == Y `-------------------( o ) \___/
为了完整起见,还应该有 str 实现,但我会偷懒:-)
For completeness, one should also have str implementations, but I'm going to be lazy :-)