Mailman 3 March 2014 - lxml - The Python XML Toolkit

[lxml-dev] lxml has its page on launchpad
by Stefan Behnel 11 Apr '23

11 Apr '23

Hi all, I added the lxml project to launchpad, the Ubuntu Bug-Tracker. It also has a FAQ engine and a couple of other goodies. https://launchpad.net/lxml It's easy to sign up for launchpad, BTW, no 90%-footnotes-contract. Have fun, Stefan

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[lxml-dev] Checking whether a node is a comment/element
by Geoffrey Sneddon 10 Apr '23

10 Apr '23

Hi, What's the best way to check whether a given node is a comment or an element? For the former, I'm currently using isinstance(node, etree._Comment), which is rather obviously sub-optimal. -- Geoffrey Sneddon <http://gsnedders.com/>

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[lxml-dev] Reparenting a node
by Lawrence Oluyede 30 Jan '23

30 Jan '23

I have a doc A and a doc B, I'd like to put a node extracted from A in the document B but I always get a ValueError: ValueError: Element is not a child of this node. I didn't find any "setparent" in the API. How can I do this? -- Lawrence, oluyede.org - neropercaso.it "It is difficult to get a man to understand something when his salary depends on not understanding it" - Upton Sinclair

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[lxml-dev] lxml 2.0.5 released
by Stefan Behnel 11 Jan '23

11 Jan '23

Hi all, lxml 2.0.5 is on PyPI. This is a bug-fix-only release of the stable 2.0 series. Have fun, Stefan 2.0.5 (2008-05-01) Bugs fixed * Resolving to a filename in custom resolvers didn't work. * lxml did not honour libxslt's second error state "STOPPED", which let some XSLT errors pass silently. * Memory leak in Schematron with libxml2 >= 2.6.31.

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[lxml-dev] Building LXML Trunk
by Sidnei da Silva 31 Aug '22

31 Aug '22

Hi, I've tried to build lxml from trunk today, on Win32. Got the following error: src\lxml\etree.c(880) : error C2059: syntax error : ')' src\lxml\etree.c(881) : error C2059: syntax error : ')' src\lxml\etree.c(882) : error C2059: syntax error : ')' src\lxml\etree.c(883) : error C2059: syntax error : ')' Any clue? Smells like a Pyrex issue? -- Sidnei da Silva Enfold Systems http://enfoldsystems.com Fax +1 832 201 8856 Office +1 713 942 2377 Ext 214

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generating html with incremental writer
by Burak Arslan 25 Sep '14

25 Sep '14

Hi, Is there a way to pass method='html' to etree.xmlfile()? Or any other way to serialize incrementally to html? Best, Burak

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Announcing lxml's end of support for Python 2.4 and 2.5
by Stefan Behnel 22 Mar '14

22 Mar '14

Hi everyone, given that systems using Python 2.4/5 are becoming truly rare these days (even Py2.6 officially died last year), I've decided to reduce my own maintenance burden by letting the next lxml release series (the one after 3.3) no longer support these two versions and require Py2.6, Py2.7, Py3.2 or later. I'm also dropping support for Py3.1 because I doubt that supporting it is interesting for any reasonable number of people. Lots of other major Python packages haven't even been ported to anything below Py3.3, so being stuck with Py3.1 can't be fun anyway. Hope you don't mind, Stefan

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lxml not ignoring whitespace when validating xsd:int
by Markus Schöpflin 19 Mar '14

19 Mar '14

Hello, I have asked this already on stackoverflow but figured that I'd better should be asking here. The following python script contains a simple XML schema defining an element 'a' of integer type and an XML document containing such an element. When validating the document against the schema the validation fails. ---%<--- from lxml import etree from StringIO import StringIO xmlschema = etree.XMLSchema(etree.parse(StringIO('''\ <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="a" type="xsd:int"/> </xsd:schema> '''))) xmldoc = etree.parse(StringIO("<a> 42</a>")) print xmlschema.validate(xmldoc) --->%--- According to XML Schema Part 2: Datatypes Second Edition, section 4.3.6 all atomic data types other than 'string' have their 'whiteSpace' constraint set to 'collapse', so I think the element 'a' should be valid. Am I mistaken or is this a bug? I have found a similar issue on S/O regarding the atomic type dateTime which unfortunately has not solution up to now. Regards, Markus

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need XML_PARSE_BIG_LINES parser option?
by Herm Fischer 18 Mar '14

18 Mar '14

Hi, For XBRL usage we routinely have humongous files well over millions of lines, and I think we need the XML_PARSE_BIG_LINES libxml parser option so we don't get line numbers crunched to short ints. Other than recompiling from source, is there a way to expose this option (or just use it for everybody)? (End users don't like the thought of custom-hacked lxml.) Herm Fischer (for Arelle project)

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How can I use open_http in lxml.html.submit_form to alternate opener?
by terencenwk . 08 Mar '14

08 Mar '14

How can I use open_http in lxml.html.submit_form to alternate opener? I don't know how to fix the last line of code. from lxml.html import parse, submit_form fundurl = 'http://www.aia.com.hk/en/investment-information/fund_search_content_new.jsp…' page = parse(fundurl).getroot() form = page.forms[0] form.fields['date'] = '08/09/2004' form.fields['todate'] = '3m' #### THE FOLLOWING CODE IS INCORRECT #### result = parse(submit_form(form, {'submit':'Search'}, open_http('GET', 'http://www.aia.com.hk/en/investment-information/fund_search_content_new.jsp…', {'date':'08/19/2004','todate':'3m'})))

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lxml - The Python XML Toolkit March 2014