Mailman 3 June 2005 - lxml - The Python XML Toolkit

[lxml-dev] Dump output correct, tostring output incorrect?
by dharana 15 Jun '05

15 Jun '05

Hello list. I've found something really weird with lxml, I hope you can help me. I want dump() output but I can't get it and tostring returns the full xml document, not the part I need. >>> import lxml.etree >>> mydoc = lxml.etree.fromstring('<?xml version="1.0"?><req><oml><section><list><items><item>quick</item></items></list></section></oml></req>') >>> lxml.etree.tostring(oml) '<req><oml><section><list><items><item>quick</item></items></list></section></oml></req>' >>> lxml.etree.dump(oml) <oml><section><list><items><item>quick</item></items></list></section></oml> >>> oml <Element oml at -481b6608> lxml version 0.6 -- dharana

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[lxml-dev] Validating xml files against a DTD
by Jeff_Gayle＠sil.org 15 Jun '05

15 Jun '05

I have a dumb question. This is my first experience with libxml2 and lxml and I was wonder how to validate an xml file given a DTD either on the internet or in a catalog (whatever that is). I have read the api.txt file and it has a nice example on how to do this with a RelaxNG file but it does not show an example of how to validate against a DTD. Is it enough to have the declaration in the top of xml file and the parser will automatically validated it? If that is the case, I would think you would want to turn the validation off in certain cases. I briefly looked at the etree.c file but given that I've not done any wrapping of 'C' code, it's kind of hard to figure out the api. ...jeff

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[lxml-dev] cElementTree compatibility issue
by Olivier Grisel 14 Jun '05

14 Jun '05

Hello, I wanted to try to replace cElementTree by lxml.etree in the promising bazaar-ng SCM tool [1], but it seems to me there is a API compatibility issue. I read the compatbility doc [2] to as to replace import lines in the BZR source code, but then whene I run the tests, I get:: AttributeError: 'etree._ElementTree' object has no attribute 'parse' Here are the steps to reproduce the problem:: # download BZR: % rsync -av --delete bazaar-ng.org::bazaar-ng/bzr/bzr.dev . % cd bzr.dev/ # replace the import lines: % perl -p -i -e 's/from cElementTree/from lxml.etree/g' bzrlib/*.py # run the tests: % python bzr selftest The orignal import lines all have the form:: >>> from cElementTree import Element, ElementTree, SubElement What am I doing wrong? [1] http://bazaar-ng.org [2] http://codespeak.net/lxml/compatibility.html Best, -- Olivier

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[lxml-dev] compilation using gcc 4.0.1
by mss＠mawhrin.net 14 Jun '05

14 Jun '05

Hi I'm trying to build lxml 0.6 using gcc 4.0: $ gcc --version gcc (GCC) 4.0.1 20050604 (prerelease) (Debian 4.0.0-8ubuntu3) Copyright (C) 2005 Free Software Foundation, Inc. The compilation fails with the following result: python2.4 setup.py build_ext -i running build_ext building 'lxml.etree' extension creating build creating build/temp.linux-i686-2.4 creating build/temp.linux-i686-2.4/src creating build/temp.linux-i686-2.4/src/lxml gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libxml2 -I/usr/include/python2.4 -c src/lxml/etree.c -o build/temp.linux-i686-2.4/src/lxml/etree.o -w src/lxml/etree.c: In function '__pyx_f_5etree__elementFactory': src/lxml/etree.c:3008: error: invalid lvalue in assignment src/lxml/etree.c: In function '__pyx_f_5etree__commentFactory': src/lxml/etree.c:3385: error: invalid lvalue in assignment src/lxml/etree.c: In function '__pyx_f_5etree__attribFactory': src/lxml/etree.c:4228: error: invalid lvalue in assignment src/lxml/etree.c: In function '__pyx_f_5etree__attribIteratorFactory': src/lxml/etree.c:4365: error: invalid lvalue in assignment src/lxml/etree.c: In function '__pyx_f_5etree__elementIteratorFactory': src/lxml/etree.c:4501: error: invalid lvalue in assignment src/lxml/etree.c: In function '__pyx_f_5etree_14XPathEvaluator___init__': src/lxml/etree.c:5494: error: invalid lvalue in assignment src/lxml/etree.c: In function '__pyx_f_5etree_changeDocumentBelow': src/lxml/etree.c:9110: error: invalid lvalue in assignment error: command 'gcc' failed with exit status 1 make: *** [inplace] Error 1 Any suggestions? :) It might be a question to pyrex developers though. Kind Regards -- Misha SysInfo: python2.4 2.4.1-1ubuntu2 python2.4-pyrex 0.9.3-1ubuntu5

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[lxml-dev] 0.6 on Tiger
by Florent Guillaume 02 Jun '05

02 Jun '05

Just a success report: lxml 0.6 compiles (and tests) OK on Tiger (Mac OS X 10.4.1), using the stock versions of libxml2 and libxslt: $ otool -L /usr/local/lib/python2.3/site-packages/lxml/etree.so /usr/local/lib/python2.3/site-packages/lxml/etree.so: /usr/lib/libxml2.2.dylib (compatibility version 9.0.0, current version 9.16.0) /usr/lib/libxslt.1.dylib (compatibility version 3.0.0, current version 3.11.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 88.0.0) $ xsltproc --version Using libxml 20616, libxslt 10111 and libexslt 809 xsltproc was compiled against libxml 20616, libxslt 10111 and libexslt 809 libxslt 10111 was compiled against libxml 20616 libexslt 809 was compiled against libxml 20616 Note that libxslt is 1.1.11, not the recommended 1.1.12 in INSTALL.txt. Should I expect problems ? Florent -- Florent Guillaume, Nuxeo (Paris, France) CTO, Director of R&D +33 1 40 33 71 59 http://nuxeo.com fg(a)nuxeo.com

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