从python中的ElementTree取消转义xml文本

Question

我正在尝试从 XML 文档中提取一个转义节点。节点的原始文本如下所示：

<Notes>{&quot;Phase&quot;: 0, &quot;Flipper&quot;: 0, &quot;Guide&quot;: 0,     
&quot;Sample&quot;: 0, &quot;Triangle8&quot;: 0, &quot;Triangle5&quot;: 0,     
&quot;Triangle4&quot;: 0, &quot;Triangle7&quot;: 0, &quot;Triangle6&quot;: 0,     
&quot;Triangle1&quot;: 0, &quot;Triangle3&quot;: 0, &quot;Triangle2&quot;: 0}</Notes> 

我将文本提取如下：

infile = ET.parse("C:/userfiles/EXP011/SESAME_60/SESAME_60_runinfo.xml")
r = infile.getroot()
XMLNS = "{http://example.com/foo/bar/runinfo_v4_3}"
x=r.find(".//"+XMLNS+"Notes")
print(x.text)

我希望得到：

{"Phase": 0, "Flipper": 0, "Guide&quot": 0,     
"Sample": 0, "Triangle8": 0, "Triangle5": 0,     
"Triangle4": 0, "Triangle7": 0, "Triangle6": 0,     
"Triangle1": 0, "Triangle3": 0, "Triangle2": 0}

但是，相反，我得到了：

 {"Phase": 0, "Flipper": 0, "Guide": 0,      
 "Sample": 0, "Triangle8": 0, "Triangle5": 0,   
 "Triangle4": 0, "Triangle7": 0, "Triangle6": 0, 
 "Triangle1": 0, "Triangle3": 0, "Triangle2": 0}

我如何获得未转义的字符串？

Answer 1

使用HTMLParser.HTMLParser()：

In [8]: import HTMLParser    

In [11]: HTMLParser.HTMLParser().unescape('"')
Out[11]: u'"'

saxutils 处理<, >and &，但不处理".

In [9]: import xml.sax.saxutils as saxutils

In [10]: saxutils.unescape('"')
Out[10]: '"'    

Answer 2

既然python 3.4你可以使用html.unescape.

>>> from html import unescape
>>> unescape('"')
'"'