我有一个(旧的)工具,它不理解像<STATUS/>
这样的自动关闭标签。因此,我们需要使用打开/关闭的标记序列化我们的XML文件,如下所示:<STATUS></STATUS>
。
目前我有:
>>> from lxml import etree
>>> para = """<ERROR>The status is <STATUS></STATUS>.</ERROR>"""
>>> tree = etree.XML(para)
>>> etree.tostring(tree)
'<ERROR>The status is <STATUS/>.</ERROR>'
如何使用打开/关闭的标签进行序列化?
<ERROR>The status is <STATUS></STATUS>.</ERROR>
解决方案
给出>>> from lxml import etree
>>> para = """<ERROR>The status is <STATUS></STATUS>.</ERROR>"""
>>> tree = etree.XML(para)
>>> for status_elem in tree.xpath("//STATUS[string() = '']"):
... status_elem.text = ""
>>> etree.tostring(tree)
'<ERROR>The status is <STATUS></STATUS>.</ERROR>'
答案 0 :(得分:5)
似乎为<STATUS>
标记分配了text
None
属性:
>>> tree[0]
<Element STATUS at 0x11708d4d0>
>>> tree[0].text
>>> tree[0].text is None
True
如果您将text
标记的<STATUS>
属性设置为空字符串,则应该获得您正在寻找的内容:
>>> tree[0].text = ''
>>> etree.tostring(tree)
'<ERROR>The status is <STATUS></STATUS>.</ERROR>'
考虑到这一点,你可以在写出XML之前走一个DOM树并修复text
属性。像这样:
# prevent creation of self-closing tags
for node in tree.iter():
if node.text is None:
node.text = ''
答案 1 :(得分:3)
如果将lxml dom设置为HTML
,则可以使用
etree.tostring(html_dom, method='html')
防止自闭标签(如<a />