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POHow to do a Python XPath case-insensitive search using lxml?
 

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  1. POHow to do a Python XPath case-insensitive search using lxml?
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    <p>I am trying to match for country or Country using <code>lower-case</code> function in XPath. <code>translate</code> is kinda messy, so using lower-case and my Python version 2.6.6 has XPath 2.0 support I believe since lower-case is only available in XPath 2.0.</p> <p>How I can put lower-case to use in my case is what I am looking for. Hope the example is self explanatory. I am looking for <code>['USA', 'US']</code> as output (both countries in one go which can happen if lower-case evaluates Country and country to be the same).</p> <p><strong>HTML: doc.htm</strong></p> <pre><code>&lt;html&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt; Name of the Country : &lt;span&gt; USA &lt;/span&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt; Name of the country : &lt;span&gt; UK &lt;/span&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </code></pre> <p><strong>Python :</strong></p> <pre><code>import lxml.html as lh doc = open('doc.htm', 'r') out = lh.parse(doc) doc.close() print out.xpath('//table/tr/td[text()[contains(. , "Country")]]/span/text()') # Prints : [' USA '] print out.xpath('//table/tr/td[text()[contains(. , "country")]]/span/text()') # Prints : [' UK '] print out.xpath('//table/tr/td[lower-case(text())[contains(. , "country")]]/span/text()') # Prints : [&lt;Element td at 0x15db2710&gt;] </code></pre> <p><strong>Update :</strong> </p> <pre><code>out.xpath('//table/tr/td[text()[contains(translate(., "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "abcdefghijklmnopqrstuvwxyz") , "country")]]/span/text()') </code></pre> <p>Now the question remains, can I store the translate part as a global variable 'handlecase' and print that global variable whenever I do an XPath?</p> <p><strong>Something like this works :</strong></p> <pre><code>handlecase = """translate(., "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "abcdefghijklmnopqrstuvwxyz")""" out.xpath('//table/tr/td[text()[contains(%s , "country")]]/span/text()' % (handlecase)) </code></pre> <p>But for sake of simplicity and readability, I want to run it like this :</p> <pre><code>out.xpath('//table/tr/td[text()[contains(handlecase , "country")]]/span/text()') </code></pre>
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    1. COFrom [the lxml XPath documentation](http://lxml.de/xpathxslt.html): `lxml supports XPath 1.0`; thus, with lxml you are stuck with translate.
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    2. COIn that case, I am not sure why it isn't complaining when I use lower-case. I didn't have much luck with 'translate' either in this example scenario. Thank you!
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    3. CO[Possible duplicate](http://stackoverflow.com/questions/9804281/selectnodes-with-xpath-ignoring-cases/9805020#9805020)
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