Mailman 3 April 2011 - lxml - The Python XML Toolkit

pasithee@gmail.com
by Pasithee Jupiter April 8, 2011

April 8, 2011

pasithee(a)gmail.com

1 0

libxml2 library not found error
by Tim Arnold April 5, 2011

April 5, 2011

hi, I'm installing lxml-2.3 on FreeBSD 8.2. Been working on this for a couple of days... I installed the latest libxml2, libxslt, Python2.7 in a non-standard location, '/AppDocs/local' Then installed lxml. All of which went fine as far as I can see. > python setup.py test > Building lxml version 2.3. > Building without Cython. > Using build configuration of libxslt 1.1.26 > Building against libxml2/libxslt in the following directory: /AppDocs/local/lib > running test > But when actually using Python: > which python /AppDocs/local/bin/python > python Python 2.7.1 (r271:86832, Apr 4 2011, 15:25:49) [GCC 4.2.1 20070719 [FreeBSD]] on freebsd8 Type "help", "copyright", "credits" or "license" for more information. >>> from lxml import etree Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: Shared object "libxml2.so.9" not found, required by "etree.so" The file libxml2.so.9 is in the /AppDocs/local/lib directory. More info: lxml2-config: -L/AppDocs/local/lib -lxml2 -lz -lpthread -lm -I/AppDocs/local/include/libxml2 2.7.8 xslt-config -L/AppDocs/local/lib -lxslt -lxml2 -lz -lpthread -lm -I/AppDocs/local/include -I/AppDocs/local/include/libxml2 1.1.26 ls /AppDocs/local/lib/ libexslt.a libexslt.so.8 libsqlite3.la libxml2.a libxml2.so.9 libxslt.la pkgconfig xsltConf.sh libexslt.la libpython2.7.a libsqlite3.so libxml2.la libxslt-plugins libxslt.so python2.7 libexslt.so libsqlite3.a libsqlite3.so.8 libxml2.so libxslt.a libxslt.so.2 xml2Conf.sh I've been banging my head against this so long I'm probably just getting stupid. Is there something wrong in the info above? thanks for any insights, --Tim Arnold

2 2

[lxml-dev] DLL issue with win32 static builds of lxml
by Scott Smith April 4, 2011

April 4, 2011

Hi I'm looking at upgrading our python installations from 2.6(.2) to 2.7 and upgrading the packages we use to the latest versions. We use python and the mod_wsgi module in Apache 2.2 for our application server and easy_install to install egg packages. I'm currently testing on a Windows 7 machine. The current egg version of lxml that we're using (before upgrading) is: lxml-2.2.4-py2.6-win32.egg In trying to upgrade things, I've found that all the later builds of lxml cause a DLL problem through apache. For example, all of these builds (from pipy) cause the problem: lxml-2.2.8-py2.6-win32.egg lxml-2.2.8-py2.7-win32.egg lxml-2.2beta1-py2.6-win32.egg lxml-2.3beta1-py2.6-win32.egg lxml-2.3beta1-py2.7-win32.egg (Note that there are no static win32 builds available for 2.2.5-2.2.7, or I can't find them) The error thrown in the Apache logs is: mod_wsgi (pid=4812): Target WSGI script 'C:/wsgi/handler.py' cannot be loaded as Python module. mod_wsgi (pid=4812): Exception occurred processing WSGI script 'C:/wsgi/handler.py'. Traceback (most recent call last): File "C:/wsgi/handler.py", line 2, in <module> from lxml import etree ImportError: DLL load failed: The specified module could not be found. The same file works in Python 2.6 if lxml 2.2.4 is installed, but fails for any other higher version of lxml (either in python 2.6 or 2.7). I've been able to trace the problem down to the builds not being able to find the msvcr90.dll file properly. I've tried modifying path variables and other changes, but can't figure out what the problem is. A couple of other things to note: - Using just "import lxml" doesn't cause the error, just "from lxml import etree" - The problem only occurs through Apache. If I write a script that references etree and call it through the command line, the problem doesn't occur. Does anyone know what I need to do? What changed after the 2.2.4 lxml builds? Thanks for any help you can give. Scott Smith

5 5

problem with validation using XMLSchema
by Angelos Tzotsos April 2, 2011

April 2, 2011

Hi all, I am not sure that this is the same as in previous posts, so I am sending it: I am trying to validate an xml against a complex xml schema (similar to gml that was reported not to work earlier) My xml file is: http://users.ntua.gr/tzotsos/temp/organization.xml The schema I am trying to validate against is: http://schemas.opengis.net/iso/19139/20060504/gmd/gmd.xsd My python code is: tmp="http://schemas.opengis.net/iso/19139/20060504/gmd/gmd.xsd" gmd = lxml.etree.parse(tmp) xsd = lxml.etree.XMLSchema(gmd) result = xsd.validate(e) The error I get is: Traceback (most recent call last): File "./test_iso.py", line 51, in <module> xsd = lxml.etree.XMLSchema(gmd) File "xmlschema.pxi", line 105, in lxml.etree.XMLSchema.__init__ (src/lxml/lxml.etree.c:128508) lxml.etree.XMLSchemaParseError: local list type: A type, derived by list or union, must have the simple ur-type definition as base type, not '{http://www.opengis.net/gml}doubleList'., line 136 Is this a known issue? I have tried both lxml 2.2 and 2.3 on GNU/Linux with python 2.6 and 2.7 libxml2 is within the suggested requirements Please advise, I am using lxml as part of the project http://pycsw.org/ and is very crucial to get validation working. Regards, Angelos -- Angelos Tzotsos Remote Sensing Laboratory National Technical University of Athens http://users.ntua.gr/tzotsos

2 2