How to get path of an element in lxml?

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没有蜡笔的小新
没有蜡笔的小新 2020-11-30 01:29

I\'m searching in a HTML document using XPath from lxml in python. How can I get the path to a certain element? Here\'s the example from ruby nokogiri:

page.         


        
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  • 2020-11-30 01:46
    root = etree.parse(open('tmp.txt'))
    
    for e in root.iter():
        print root.getpath(e)
    
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  • 2020-11-30 01:52

    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)
    
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  • 2020-11-30 01:53

    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]
    
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  • 2020-11-30 01:57

    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]']
    
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