Mailman 3 October 2017 - 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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incorrect handling of dt/dl in parsing html ?
by svilen 21 Oct '17

21 Oct '17

g'day i'm trying to parse the "usual" netscape-format bookmarks.html produced by Firefox (and Opera recently). The way lxml parses the tree is different from how it should be and how both Firefox and Opera parse it. (sub)Folders there are represented as [dl] inside a [dt] , but lxml puts the [dl] next to the [dt], on same level as the [dt]. Is this a mistake or something intentional? ciao svil (angle brackets replaced with [] below) [DL][p] [DT][A HREF= "hrf1/" ] name1[/A] [DD] [DT][A HREF= "hrf2"] name2[/A] [DD] [DT][H3] folder1[/H3] [DL][p] [DT][A HREF= "hrf11"] name3[/A] [DD]dd1 [DT][H3] folder2[/H3] [DL][p] [DT][A HREF= "hrf22"] name4[/A] [DD]dd2 [/DL][p] [DT][A HREF= "hrf33"] name5[/A] [DD]dd3 [/DL][p] [/DL]

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Size limit of text nodes?
by Jens Tröger 13 Oct '17

13 Oct '17

Hello, I just ran into the following error: big-file.xml:3291: parser error : xmlSAX2Characters: huge text node 279ebcd8791394504dc9d4823772baa4bcc942a0871755e1ac3562f0369c69e1e2472dc202cb784a ^ big-file.xml:3291: parser error : Extra content at the end of the document 279ebcd8791394504dc9d4823772baa4bcc942a0871755e1ac3562f0369c69e1e2472dc202cb784a ^ The offending node is one of several like this: <image id=“image-8” class="image">425a68393141592…29c28481da477d780</image> where the content of the node here (i.e. the node.text property) is about 13MB of text :-) Is this an lxml limitation or one of the underlying xml library? Thanks! Jens -- Jens Tröger http://savage.light-speed.de/

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thread-specific data for xslt callbacks
by Bob Kline 13 Oct '17

13 Oct '17

I need to make some thread-specific data available to my xslt function callbacks. I think I've sort of reverse-engineered a way to do it, by creating my own parser class, stuffing the data I need into an instance of that class, using the parser instance to parse the XSL/T filter, and then in the extension function following the context argument's context_node to its root tree, which in turn gets me back to my own parser object (and my thread-specific data). Is there a more elegant way to do it that I just haven't yet stumbled across in reading through the API docs? Thanks! -- Bob Kline http://www.rksystems.com mailto:bkline@rksystems.com

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lxml 4.1.0 released
by Stefan Behnel 13 Oct '17

13 Oct '17

Hi all, I just released lxml 4.1.0 with a couple of new features and fixes. The documentation is here: http://lxml.de/ Download: https://pypi.python.org/packages/89/dc/ec07a5adf6afb02ad4f5f7e1f7e1a2fc0e3d… Signature: https://pypi.python.org/packages/89/dc/ec07a5adf6afb02ad4f5f7e1f7e1a2fc0e3d… Changelog: http://lxml.de/4.1/changes-4.1.0.html Github: https://github.com/lxml/lxml/releases/tag/lxml-4.1.0 This release was built using Cython 0.27.1. If you are interested in commercial support or customisations for the lxml package, please contact me directly. Have fun, Stefan 4.1.0 (2017-10-13) ================== Features added -------------- * ElementPath supports text predicates for current node, like "[.='text']". * ElementPath allows spaces in predicates. * Custom Element classes and XPath functions can now be registered with a decorator rather than explicit dict assignments. * Static Linux wheels are now built with link time optimisation (LTO) enabled. This should have a beneficial impact on the overall performance by providing a tighter compiler integration between lxml and libxml2/libxslt. Bugs fixed ---------- * LP#1722776: Requesting non-Element objects like comments from a document with ``PythonElementClassLookup`` could fail with a TypeError.

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