如何在Python中针对DTD文件验证xml [英] How do I validate xml against a DTD file in Python

问题描述

我需要针对DTD描述文件验证XML字符串（而不是文件）
。

I need to validate an XML string (and not a file) against a DTD description file.

如何在 python 中完成？

推荐答案

另一个不错的选择是 lxml的验证，我觉得这很愉快

Another good option is lxml's validation which I find quite pleasant to use.

一个简单的示例，取自lxml网站：

A simple example taken from the lxml site:

from StringIO import StringIO

from lxml import etree

dtd = etree.DTD(StringIO("""<!ELEMENT foo EMPTY>"""))
root = etree.XML("<foo/>")
print(dtd.validate(root))
# True

root = etree.XML("<foo>bar</foo>")
print(dtd.validate(root))
# False
print(dtd.error_log.filter_from_errors())
# <string>:1:0:ERROR:VALID:DTD_NOT_EMPTY: Element foo was declared EMPTY this one has content

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