在ElementTree 1.2中取消命名空间前缀
在ElementTree 1.2中取消命名空间前缀
提问于 2011-11-14 01:24:09
在python 2.7 (使用etree 1.3)中，我可以抑制元素上的XML前缀，如下所示：
Python 2.7.1 (r271:86832, Jun 16 2011, 16:59:05)
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import xml.etree.ElementTree as etree
>>> etree.VERSION
'1.3.0'
>>> something = etree.Element('{http://some.namespace}token')
>>> etree.tostring(something)
'<ns0:token xmlns:ns0="http://some.namespace" />'
>>> etree.register_namespace('', 'http://some.namespace')
>>> etree.tostring(something)
'<token xmlns="http://some.namespace" />'register_namespace函数是在1.3中添加的。我正在尝试以一种与Python2.6的etree在1.2.6版本中兼容的方式删除前缀。这是我尝试过的：
Python 2.6.7 (r267:88850, Jul 31 2011, 19:30:54)
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import xml.etree.ElementTree as etree
>>> etree.VERSION
'1.2.6'
>>> something = etree.Element('{http://some.namespace}token')
>>> etree.tostring(something)
'<ns0:token xmlns:ns0="http://some.namespace" />'
>>> etree._namespace_map['http://some.namespace'] = ''
>>> etree.tostring(something)
'<:token xmlns:="http://some.namespace" />'这不是我想要的。前缀仍然存在，但为空。有没有办法将它们完全移除？
Stack Overflow用户
回答已采纳
发布于 2011-11-14 10:40:55
在查看source code for ElementTree in python2.6之后，:被硬编码到fixtag函数中。作为一种解决方法，以下是我所做的：
from xml.etree import ElementTree as etree
if etree.VERSION[0:3] == '1.2':
#in etree < 1.3, this is a workaround for supressing prefixes
def fixtag(tag, namespaces):
import string
# given a decorated tag (of the form {uri}tag), return prefixed
# tag and namespace declaration, if any
if isinstance(tag, etree.QName):
tag = tag.text
namespace_uri, tag = string.split(tag[1:], "}", 1)
prefix = namespaces.get(namespace_uri)
if namespace_uri not in namespaces:
prefix = etree._namespace_map.get(namespace_uri)
if namespace_uri not in etree._namespace_map:
prefix = "ns%d" % len(namespaces)
namespaces[namespace_uri] = prefix
if prefix == "xml":
xmlns = None
else:
if prefix is not None:
nsprefix = ':' + prefix
else:
nsprefix = ''
xmlns = ("xmlns%s" % nsprefix, namespace_uri)
else:
xmlns = None
if prefix is not None:
prefix += ":"
else:
prefix = ''
return "%s%s" % (prefix, tag), xmlns
etree.fixtag = fixtag
etree._namespace_map['http://some.namespace'] = None
else:
#For etree > 1.3, use register_namespace function
etree.register_namespace('', 'http://some.namespace')以防这篇文章过期，代码由here维护。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/8113296
复制相关文章
相似问题
腾讯云开发者
