Mailman 3 October 2007 - 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] 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] 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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[lxml-dev] Pickling objectified trees
by Christian Zagrodnick 09 Jun '08

09 Jun '08

Hi, the other day I had to pickle objectified trees. I just thought to share my findings. Pickling is about serialization. IMHO the natural serialization of an objectified tree is its XML representation. So the following basically does that: -------------------------- import copy_reg import lxml.etree import lxml.objectify def treeFactory(state): """Un-Pickle factory.""" return lxml.objectify.fromstring(state) copy_reg.constructor(treeFactory) def reduceObjectifiedElement(object): """Reduce function for lxml.objectify trees. See http://docs.python.org/lib/pickle-protocol.html for details. """ return (treeFactory, (lxml.etree.tostring(object), )) copy_reg.pickle(lxml.objectify.ObjectifiedElement, reduceObjectifiedElement, treeFactory) ----------------------------------------- You might consider just registering the reduce function in lxml itself. Shouldn't hurt, should it. -- Christian Zagrodnick gocept gmbh & co. kg · forsterstrasse 29 · 06112 halle/saale www.gocept.com · fon. +49 345 12298894 · fax. +49 345 12298891

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[lxml-dev] lxml namespaces
by Maxim Sloyko 20 Feb '08

20 Feb '08

Hi All! I have a little problem with XML namespaces. In my application I have two XML processors, that process the same document, one after the other. The first one looks for nodes in 'ns1' namespace, and substitutes them, according to some algorithm. After this processor is finished, it is guaranteed that there are no more 'ns1' nodes left in the tree. 'ns1' namespace dclaration is still there, in the root node (well, I put it there manually). Now, when this namespace is no longer needed, I want to get rid of it, because it confuses some other processors (namely, my browser) So, the question is, how do I do that? del tree.getroot().nsmap['ns1'] does not seem to do the trick :( Thanks in advance and Happy Holidays! -- Maxim Sloyko

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[lxml-dev] Error with thread
by Frédéric Mantegazza 03 Dec '07

03 Dec '07

Hello, I have a problem with a XSLT filter: Traceback (most recent call last): File "/home/pymad/PyMAD/server/macros/freeScan.py", line 247, in doAction DataManager().newScanPoint(numPoint, 'NSF') File "/home/pymad/PyMAD/server/managers/dataManager.py", line 253, in newScanPoint self.__scan.setPoint(numPoint, numPal) File "/home/pymad/PyMAD/server/data/scanData.py", line 221, in setPoint self.__serialize() File "/home/pymad/PyMAD/server/data/scanData.py", line 196, in __serialize filter_.dumpScan(self.__tree, self.__scanBaseName) File "/home/pymad/PyMAD/server/data/dataFilters.py", line 122, in dumpScan result = self.__xslFilter.apply(tree, fileName="'%s'" % baseName) File "xslt.pxi", line 450, in etree.XSLT.apply File "xslt.pxi", line 356, in etree.XSLT.__call__ RuntimeError: stylesheet is not usable in this thread This error ocurs on a machine, and not on another, which has the same install (debian etch, lxml 1.1.1). Any idea ? -- Frédéric

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Re: [lxml-dev] Failing lxml.html tests
by Ian Bicking 05 Nov '07

05 Nov '07

(I had sent this to Stefan, but maybe someone on the list will recognize something about what's going on here) Stefan Behnel wrote: > Ian Bicking wrote: >> When I run the tests just get a lot of these: >> >> >> ====================================================================== >> ERROR: test_write_method_text >> (lxml.tests.test_elementtree.ElementTreeTestCase) >> ---------------------------------------------------------------------- >> Traceback (most recent call last): >> File "unittest.py", line 260, in run >> testMethod() >> File "/home/ianb/src/lxml/src/lxml/tests/test_elementtree.py", line >> 777, in test_write_method_text >> tree.write(f, method="text") >> TypeError: write() got an unexpected keyword argument 'method' >> >> ---------------------------------------------------------------------- >> >> >> I've deleted all the .c files and rebuilt, and I'm still getting these >> exceptions. Do you know what that is from? > > Hmm, maybe you have easy_installed an older version of lxml? Setuptools plug > eggs into the system before the PYTHONPATH, so test.py may not be able to > import the correct version. The version output should tell you, though... There were some other lxml eggs on the path, but I think the trunk was above them since I'd just run "python setup.py develop". I tried python setup.py install, just in case there was something weird about develop, but same thing (either way it seems to be running out of the checkout, so presumably test.py is fixing up the path somehow). Here's the version information test.py gave: webdev$ python test.py TESTED VERSION: 2.0.alpha4-47900 Python: (2, 4, 4, 'candidate', 1) lxml.etree: (2, 0, -196, 47900) libxml used: (2, 6, 26) libxml compiled: (2, 6, 26) libxslt used: (1, 1, 17) libxslt compiled: (1, 1, 17) -- Ian Bicking : ianb(a)colorstudy.com : http://blog.ianbicking.org

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[lxml-dev] lxml 1.3.6 released
by Stefan Behnel 31 Oct '07

31 Oct '07

Hi all, lxml 1.3.6 is up on PyPI. This is a bug fix release for the stable 1.3 series. It features an important fix for a crash bug. Updating is recommended. Install it with $ easy_install lxml==1.3.6 Have fun, Stefan 1.3.6 (2007-10-29) ================== Bugs fixed ---------- * Backported decref crash fix from 2.0 * Well hidden free-while-in-use crash bug in ObjectPath Other changes ------------- * The test suites now run ``gc.collect()`` in the ``tearDown()`` methods. While this makes them take a lot longer to run, it also makes it easier to link a specific test to garbage collection problems that would otherwise appear in later tests.

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[lxml-dev] 2.0 release plans
by jholg＠gmx.de 25 Oct '07

25 Oct '07

Hi, for the system I'm supporting that is based on lxml.objectify we need to get out a new release soon (alpha by the end of the week, final in mid-November). For this release I definitely want to have the shiny new 2.0-objectify behaviour. With the high quality I've come to know of lxml I wouldn't be really afraid to base that on a 2.0alpha or beta; however, I'd like to know if major changes are still waiting to happen for 2.0. To be on the safe side, I could also backport the functionality I need to the 1.3 series (maybe make it publicly available if anyone is interested). Stefan, what would you recommend with regard to your plans for 2.0? Holger -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

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[lxml-dev] 2.0 ElementTree 1.3 compat: getiterator
by jholg＠gmx.de 24 Oct '07

24 Oct '07

FWIW I just took a quick look at ElementTree 1.3alpha, and: # compatibility (FIXME: preserve list behaviour too? see below) getiterator = iter getiterator() is (currently) an iterator (generator), just as it was in lxml pre-2.0. I remember some discussion on this list with regard to that. I for one think it counter-intuitive for getiterator() to return a list, so I think lxml got that right in the first place. Holger -- Ist Ihr Browser Vista-kompatibel? Jetzt die neuesten Browser-Versionen downloaden: http://www.gmx.net/de/go/browser

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