如何使用LXML解析损坏的HTML

diemacht 发表于 Dev

动力

我正在尝试在python 2.5和2.7上使用LXML解析器解析损坏的HTML

与LXML文档（http://lxml.de/parsing.html#parsing-html）不同，无法解析损坏的HTML：

from lxml import etree
import StringIO
broken_html = "<html><head><title>test<body><h1>page title</h3>"
parser = etree.HTMLParser()
tree   = etree.parse(StringIO.StringIO(broken_html))

结果：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "lxml.etree.pyx", line 2954, in lxml.etree.parse (src/lxml/lxml.etree.c:56220)
  File "parser.pxi", line 1550, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:82482)
  File "parser.pxi", line 1578, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:82764)
  File "parser.pxi", line 1457, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:81562)
  File "parser.pxi", line 965, in lxml.etree._BaseParser._parseDoc (src/lxml/lxml.etree.c:78232)
  File "parser.pxi", line 569, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:74488)
  File "parser.pxi", line 650, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:75379)
  File "parser.pxi", line 590, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:74712)
lxml.etree.XMLSyntaxError: Opening and ending tag mismatch: h1 line 1 and h3, line 1, column 50

弗雷德·富

不要只是构造该解析器，而是使用它（按照您链接到的示例）：

>>> tree = etree.parse(StringIO.StringIO(broken_html), parser=parser)
>>> tree
<lxml.etree._ElementTree object at 0x2fd8e60>

或lxml.html用作快捷方式：

>>> from lxml import html
>>> broken_html = "<html><head><title>test<body><h1>page title</h3>"
>>> html.fromstring(broken_html)
<Element html at 0x2dde650>

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