How to get path of an element in lxml?
I'm searching in a HTML document using XPa开发者_C百科th from lxml in python. How can I get the path to a certain element? Here's the example from ruby nokogiri:
page.xpath('//text()').each do |textnode|
path = textnode.path
puts path
end
print for example '/html/body/div/div[1]/div[1]/p/text()[1]' and this is the string I want to get in python.
Use getpath
from ElementTree objects.
from lxml import etree
root = etree.fromstring('''
<foo><bar>Data</bar><bar><baz>data</baz>
<baz>data</baz></bar></foo>
''')
tree = etree.ElementTree(root)
for e in root.iter():
print(tree.getpath(e))
Prints
/foo
/foo/bar[1]
/foo/bar[2]
/foo/bar[2]/baz[1]
/foo/bar[2]/baz[2]
See the Xpath and XSLT with lxml from the lxml documentation This gives the path of the element containg the text
An example would be
import cStringIO
from lxml import etree
f = cStringIO.StringIO('<foo><bar><x1>hello</x1><x1>world</x1></bar></foo>')
tree = lxml.etree.parse(f)
find_text = etree.XPath("//text()")
# and print out the required data
print [tree.getpath( text.getparent()) for text in find_text(tree)]
# answer I get is
>>> ['/foo/bar/x1[1]', '/foo/bar/x1[2]']
If all you have in your section of code is the element and you want the element's xpath do then element.getroottree().getpath(element)
will do the job.
from lxml import etree
xml = '''
<test>
<a/>
<b>
<i/>
<ii/>
</b>
</test>
'''
tree = etree.fromstring(xml)
for element in tree.iter():
print element.getroottree().getpath(element)
root = etree.parse(open('tmp.txt'))
for e in root.iter():
print root.getpath(e)
精彩评论