lxml - The Python XML Toolkit August 2018

lxml@python.org

3 participants
7 discussions

[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

3 2

[lxml-dev] Checking whether a node is a comment/element
by Geoffrey Sneddon 11 Jan '23

11 Jan '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/>

4 4

[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.

3 4

[lxml-dev] lxml has its page on launchpad
by Stefan Behnel 20 Sep '22

20 Sep '22

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] Building LXML Trunk
by Sidnei da Silva 30 Aug '22

30 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

4 4

copy ElementBase subclass
by Andrey Skvortsov 17 Aug '18

17 Aug '18

Hi, copy/deepcopy copies all xml content, but information about added methods is lost. Here is small example: [------------ subclass.py-----------------] from __future__ import print_function from lxml import etree import copy class DefaultElementClass(etree.ElementBase): def getLocalTag(self): return etree.QName(self.tag).localname def printInformation(x): print(x, x.__class__, "getLocalTag" in dir(x)) a = DefaultElementClass() printInformation(a) # printInformation(copy.copy(a)) printInformation(copy.deepcopy(a)) [-----------------------------------------] Output: <Element DefaultElementClass at 0x7f13d15416d8> <class '__main__.DefaultElementClass'> True <Element DefaultElementClass at 0x7f13d1652d88> <type 'lxml.etree._Element'> False <Element DefaultElementClass at 0x7f13d1652d88> <type 'lxml.etree._Element'> False Expected output: <Element DefaultElementClass at 0x7f13d15416d8> <class '__main__.DefaultElementClass'> True <Element DefaultElementClass at 0x7f13d15416d8> <class '__main__.DefaultElementClass'> True <Element DefaultElementClass at 0x7f13d15416d8> <class '__main__.DefaultElementClass'> True How create copy of the element and keep all methods from subclass? python-lxml:amd64 4.2.3-1 -- Best regards, Andrey Skvortsov

2 1

Unable to complete a static build with pip
by Scott Koranda 03 Aug '18

03 Aug '18

Hello, Following the instructions at https://lxml.de/installation.html#installation I am running STATIC_DEPS=true pip install --no-binary :all: lxml but I am receiving this error: Downloading libxslt into libs/libxslt-1.1.33.tar.gz from ftp://xmlsoft.org/l ibxml2/libxslt-1.1.33.tar.gz Traceback (most recent call last): File "<string>", line 1, in <module> File "/tmp/pip-install-sgNr8u/lxml/setup.py", line 241, in <module> **setup_extra_options() File "/tmp/pip-install-sgNr8u/lxml/setup.py", line 150, in setup_extra_opt ions STATIC_CFLAGS, STATIC_BINARIES) File "setupinfo.py", line 75, in ext_modules multicore=OPTION_MULTICORE) File "buildlibxml.py", line 390, in build_libxml2xslt libxslt_dir = unpack_tarball(download_libxslt(download_dir, libxslt_ver sion), build_dir) File "buildlibxml.py", line 218, in download_libxslt version_re, filename, version=version) File "buildlibxml.py", line 291, in download_library urlretrieve(full_url, dest_filename) File "/usr/lib64/python2.7/urllib.py", line 94, in urlretrieve return _urlopener.retrieve(url, filename, reporthook, data) File "/usr/lib64/python2.7/urllib.py", line 240, in retrieve fp = self.open(url, data) File "/usr/lib64/python2.7/urllib.py", line 208, in open return getattr(self, name)(url) File "/usr/lib64/python2.7/urllib.py", line 552, in open_ftp (fp, retrlen) = self.ftpcache[key].retrfile(file, type) File "/usr/lib64/python2.7/urllib.py", line 903, in retrfile self.ftp.cwd(file) File "/usr/lib64/python2.7/ftplib.py", line 562, in cwd return self.voidcmd(cmd) File "/usr/lib64/python2.7/ftplib.py", line 254, in voidcmd return self.voidresp() File "/usr/lib64/python2.7/ftplib.py", line 229, in voidresp resp = self.getresp() File "/usr/lib64/python2.7/ftplib.py", line 224, in getresp raise error_perm, resp IOError: [Errno ftp error] [Errno ftp error] 550 Failed to change directory. I believe the problem is that version 1.1.33 of libxslt has not actually been released and there is only a rc1 source tarball. How can I work around this issue? I would like to do a static build of libxml and libxslt because I am attempting to track down a memory issue and I want to be running the latest released versions of those libraries, as opposed to the versions offered by the host operating system. Thanks, Scott K

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lxml - The Python XML Toolkit August 2018