lxml

问题 I'm writing a unit test that validates sitemap xml I generate by fetching its xsd schema and validating using python's lxml library: Here's some metadata on my root element: xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd http://www.google.com/schemas/sitemap-image/1.1 http://www.google.com/schemas/sitemap

问题 I'm having problems getting lxml to successfully validate some xml. The XSD schema and XML file are both from Amazon documentation so should be compatible. But the XML itself refers to another schema that's not being loaded. Here is my code, which is based on the lxml validation tutorial: xsd_doc = etree.parse('ProductImage.xsd') xsd = etree.XMLSchema(xsd_doc) xml = etree.parse('ProductImage_sample.xml') xsd.validate(xml) print xsd.error_log "ProductImage_sample.xml:2:0:ERROR:SCHEMASV:SCHEMAV

问题 Is it possible to configure PyCharm to use a custom function to display the __str__ representation of a type in a debug session? I am referring to built-in types or types imported from third party libraries which I would rather not modify. For example, instead of a string in the debugger like {lxml.html.HtmlElement} <Element tr at 0x10e2c1418> I would like to have the output of etree.tostring(element) . Intellij Idea has Java Type Renderers where you can set a custom toString() method for any

问题 I need to write a dynamic function that finds elements on a subtree of an ATOM xml document. To do so, I've written something like this: tree = etree.parse(xmlFileUrl) e = etree.XPathEvaluator(tree, namespaces={'def':'http://www.w3.org/2005/Atom'}) entries = e('//def:entry') for entry in entries: mypath = tree.getpath(entry) + "/category" category = e(mypath) The code above fails to find category. The reason is that getpath returns an XPath without namespaces, whereas the XPathEvaluator e()

问题 Suppose I have the following XML document: <species> Mammals: <dog/> <cat/> Reptiles: <snake/> <turtle/> Birds: <seagull/> <owl/> </species> Then I get the species element like this: import lxml.etree doc = lxml.etree.fromstring(xml) species = doc.xpath('/species')[0] Now I would like to print a list of animals grouped by species. How could I do it using ElementTree API? 回答1: If you enumerate all of the nodes, you'll see a text node with the class followed by element nodes with the species: >

问题 Yahoo finance updated their website. I had an lxml/etree script that used to extract the analyst recommendations. Now, however, the analyst recommendations are there, but only as a graphic. You can see an example on this page. The graph called Recommendation Trends on the right hand column shows the number of analyst reports showing strong buy, buy, hold, underperform, and sell. My guess is that yahoo will make a few adjustments to the page over the coming little while, but it got me

问题 I want to parse downloaded RSS with lxml, but I don't know how to handle with UnicodeDecodeError? request = urllib2.Request('http://wiadomosci.onet.pl/kraj/rss.xml') response = urllib2.urlopen(request) response = response.read() encd = chardet.detect(response)['encoding'] parser = etree.XMLParser(ns_clean=True,recover=True,encoding=encd) tree = etree.parse(response, parser) But I get an error: tree = etree.parse(response, parser) File "lxml.etree.pyx", line 2692, in lxml.etree.parse (src/lxml

问题 I'm currently parsing a large XML file of the following form in a python-flask webapp on heroku: <book name="bookname"> <volume n="1" name="volume1name"> <chapter n="1"> <li n="1">li 1 content</li> <li n="2">li 2 content</li> </chapter/> <chapter n="2"> <li n="1">li 1 content</li> <li n="2">li 2 content</li> </chapter/> </volume> <volume n="2" name="volume2name"> <chapter n="1"> <li n="1">li 1 content</li> <li n="2">li 2 content</li> </chapter/> <chapter n="2"> <li n="1">li 1 content</li> <li

问题 i got the following code : #!/usr/bin/python2.6 from lxml import etree n = etree.Element('test') n.set('id','1234') print etree.tostring(n) the output generate is <test id="1234"/> but i want <test id='1234'/> can someone help ? 回答1: I checked the documentation and found no reference for single/double-quote option. I think your only recourse is print etree.tostring(n).replace('"', "'") Update Given: from lxml import etree n = etree.Element('test') n.set('id', "Zach's not-so-good answer") my