Mailman 3 January 2007 - lxml - The Python XML Toolkit

[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

3 5

[lxml-dev] pretty-printing
by Albert Brandl 24 Feb '07

24 Feb '07

Hi! I've posted a question about pretty-printing some time ago. Now I finally found the time to construct an example. The problem occurs with the following code: nsmap = dict (foo="http://foo.org", bar = "http://bar.org") e = Element("{http://foo.org}somefoo", nsmap = nsmap) s = Element("{http://bar.org}somebar", nsmap = nsmap) e.append(s1) et = ElementTree(e) et.write("foo.xml", pretty_print = True) This code creates the following XML file: <foo:somefoo xmlns:foo="http://foo.org" xmlns:bar="http://bar.org"> <bar:somebar xmlns:foo="http://foo.org" xmlns:bar="http://bar.org"/> </foo:somefoo> The problem is that "bar:somebar" redundantly declares the namespaces for "foo" and "bar", which affects both the readability and the size of the XML file. If the element "s" is appended to "e" by using the SubElement function instead of "append", the content of the XML file looks like I'd expect: <foo:somefoo xmlns:foo="http://foo.org" xmlns:bar="http://bar.org"> <bar:somebar/> </foo:somefoo> Is this a known bug? Thanks & best regards, Albert Brandl

4 5

[lxml-dev] Validation against an external DTD
by mike＠it-loops.com 07 Feb '07

07 Feb '07

Hello, I read through the documentation and I did not find a way to validate an XML-File against an external DTD with lxml. I searched the ML-archive and found several posts but I still do not know exactly, if this functionality is available or not. Right now I am using pyxml to do validation, but since the whole process will switch to xml schemes I am looking for a tool that can validate both (XSD,DTD). Is it possible to extend lxml to do this? I know that I can use a tool like "trang" to convert the DTDs but since there are DTDs that get added or removed from the process this means a lot of manual work. Kind regards, Michael

4 5

[lxml-dev] Back again
by Stefan Behnel 31 Jan '07

31 Jan '07

Hi all, sorry for not being active on the list recently. It was for two reasons: First, I had lots of other things to do in the meantime and, second, I didn't notice my university had considered my official unregistration a good opportunity to delete my favourite mailing list e-mail address. So I didn't receive any mail from this (and other) lists since then - including a considerably lower amount of spam, BTW. I'll try to catch up with the list, though pipermail's charm doesn't really make this a pleasure. So, just in case there was anything important I missed, feel free to resend your original mail to me directly, so that I can answer more easily. Best regards, Stefan

1 0

[lxml-dev] bus error core dump lxml 1.1.2
by Holger Joukl 24 Jan '07

24 Jan '07

Hi, I just ran into a Bus Error (Core dump) with a threaded program on a Solaris 8 system, using Python 2.4.3, lxml 1.1.2-33909, libxml2 2.6.27, libxslt 1.1.18. No clue if that points to a bug in lxml or in libxml2. Right now I'm also not able to reproduce this reliably or provide some minimal example. Alas, here's what gdb says: $ gdb /apps/pydev/bin/python2.4 -c current/bin/core -directory=/data/pydev/DOWNLOADS/LXML/lxml/lxml-1.1 /src/lxml:/data/pydev/DOWNLOADS/LXML/libxml2/libxml2-2.6.27 GNU gdb 4.18 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "sparc-sun-solaris2.6"... warning: core file may not match specified executable file. Core was generated by `/apps/pydev/bin/python2.4 ./current/bin/all2all.py'. Program terminated with signal 9, Killed. Reading symbols from /usr/lib/libresolv.so.2...done. Reading symbols from /usr/lib/libsocket.so.1...done. Reading symbols from /usr/lib/libnsl.so.1...done. Reading symbols from /usr/lib/librt.so.1...done. Reading symbols from /usr/lib/libdl.so.1...done. Reading symbols from /usr/lib/libpthread.so.1...done. Reading symbols from /usr/lib/libm.so.1...done. Reading symbols from /usr/lib/libc.so.1...done. Reading symbols from /usr/lib/libmp.so.2...done. Reading symbols from /usr/lib/libaio.so.1...done. Reading symbols from /usr/platform/SUNW,Sun-Fire-V440/lib/libc_psr.so.1...done. Reading symbols from /usr/lib/libthread.so.1...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/time.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/strop.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/collections.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/time64.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/rv/rv.so...done. Reading symbols from /apps/prod/rmds/tibrv7/lib/libtibrv.so...done. Reading symbols from /apps/prod/lib/libstdc++.so.2.10.0...done. Reading symbols from /usr/lib/libgen.so.1...done. Reading symbols from /usr/lib/libkstat.so.1...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/rv/rvcm.so...done. Reading symbols from /apps/prod/rmds/tibrv7/lib/libtibrvcm.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/lxml/etree.so...done. Reading symbols from /apps/pydev/lib/libexslt.so.0...done. Reading symbols from /apps/pydev/lib/libxslt.so.1...done. Reading symbols from /apps/pydev/lib/libxml2.so.2...done. Reading symbols from /apps/prod//lib/libz.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/lxml/objectify.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/itertools.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/datetime.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/struct.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/cStringIO.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/statvfs_ex.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/gdbm.so...done. Reading symbols from /apps/prod/lib/libgdbm.so.2...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/_socket.so...done. ---Type <return> to continue, or q <return> to quit--- Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/_ssl.so...done. Reading symbols from /usr/lib/libssl.so.0.9.6...done. Reading symbols from /usr/lib/libcrypto.so.0.9.6...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/zlib.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/fconvert.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/pytaf/connect/tibrv/cxxutils.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/operator.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/fixeddecimal.so...done. Reading symbols from /data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/sfc.so...done. Reading symbols from /usr/lib/libCstd.so.1...done. Reading symbols from /usr/lib/libCrun.so.1...done. Reading symbols from /apps/prod/rmds/versions/sslcpp4.4.4.L1.solaris.rrg/lib/solaris2.6-sw53/static/libssl.so...done. Reading symbols from /usr/lib/cpu/sparcv8plus/libCstd_isa.so.1...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/md5.so...done. Reading symbols from /apps/pydev/lib/python2.4/lib-dynload/grp.so...done. #0 xmlNodeDumpOutputInternal (ctxt=0xfcf0c1d0, cur=0x115da10) at xmlsave.c:764 764 if ((tmp->type == XML_TEXT_NODE) || (gdb) list 759 760 format = ctxt->format; 761 if (format == 1) { 762 tmp = cur->children; 763 while (tmp != NULL) { 764 if ((tmp->type == XML_TEXT_NODE) || 765 (tmp->type == XML_CDATA_SECTION_NODE) || 766 (tmp->type == XML_ENTITY_REF_NODE)) { 767 ctxt->format = 0; 768 break; (gdb) where full #0 xmlNodeDumpOutputInternal (ctxt=0xfcf0c1d0, cur=0x115da10) at xmlsave.c:764 format = 1 tmp = 0x280000e start = (xmlChar *) 0x115da10 "\001\013aX\231Uîª" end = (xmlChar *) 0xfcf0c1d0 "" buf = 0x11c59b0 #1 0xfdf95910 in xmlNodeListDumpOutput (ctxt=0xfcf0c1d0, cur=0x115da10) at xmlsave.c:631 buf = 0x11c59b0 #2 0xfdf95ea0 in xmlNodeDumpOutputInternal (ctxt=0xfcf0c1d0, cur=0x10d4268) at xmlsave.c:798 format = 1 tmp = 0x115da10 start = (xmlChar *) 0x10d4268 "\001\022ì`" end = (xmlChar *) 0xfcf0c1d0 "" buf = 0x11c59b0 #3 0xfdf95910 in xmlNodeListDumpOutput (ctxt=0xfcf0c1d0, cur=0x10d4268) at xmlsave.c:631 buf = 0x11c59b0 #4 0xfdf95ea0 in xmlNodeDumpOutputInternal (ctxt=0xfcf0c1d0, cur=0xea4c90) at xmlsave.c:798 format = 1 tmp = 0x10d4268 start = (xmlChar *) 0xea4c90 "\001\022í(" end = (xmlChar *) 0xfcf0c1d0 "" buf = 0x11c59b0 #5 0xfdf95910 in xmlNodeListDumpOutput (ctxt=0xfcf0c1d0, cur=0xea4c90) at xmlsave.c:631 buf = 0x11c59b0 #6 0xfdf95ea0 in xmlNodeDumpOutputInternal (ctxt=0xfcf0c1d0, cur=0x10e8460) at xmlsave.c:798 format = 1 tmp = 0xea4c90 start = (xmlChar *) 0x10e8460 "\001\032M(" end = (xmlChar *) 0xfcf0c1d0 "" buf = 0x11c59b0 #7 0xfdf97c68 in xmlNodeDumpOutput (buf=0x11c59b0, doc=0x10b5e08, cur=0x10e8460, level=0, format=1, encoding=0x11138a4 "ISO-8859-1") at xmlsave.c:2015 ctxt = { _private = 0x0, type = 0, fd = 0, filename = 0x0, encoding = 0x11138a4 "ISO-8859-1", handler = 0x0, buf = 0x11c59b0, doc = 0x10b5e08, options = 0, level = 3, format = 1, indent = ' ' <repeats 60 times>, indent_nr = 30, indent_size = 2, escape = 0, escapeAttr = 0 } dtd = 0xfcf0c1d0 is_xhtml = 0 ---Type <return> to continue, or q <return> to quit--- #8 0xfe10d188 in __pyx_f_5etree__writeNodeToBuffer (__pyx_v_c_buffer=0x11c59b0, __pyx_v_c_node=0x10e8460, __pyx_v_encoding=0x11138a4 "ISO-8859-1", __pyx_v_write_xml_declaration=1, __pyx_v_pretty_print=1) at src/lxml/etree.c:23043 __pyx_v_c_doc = (xmlDoc *) 0x10b5e08 #9 0xfe0cec8c in __pyx_f_5etree__tostring (__pyx_v_element=0x11a4d28, __pyx_v_encoding=0x1113890, __pyx_v_write_xml_declaration=1, __pyx_v_pretty_print=1) at src/lxml/etree.c:22818 __pyx_v_state = (PyThreadState *) 0x6af870 __pyx_v_c_buffer = (xmlOutputBuffer *) 0x11c59b0 __pyx_v_c_result_buffer = (xmlBuffer *) 0x1 __pyx_v_enchandler = (xmlCharEncodingHandler *) 0x6af870 __pyx_v_c_enc = 0x11138a4 "ISO-8859-1" __pyx_v_result = (PyObject *) 0x10905c __pyx_r = (PyObject *) 0x109000 __pyx_1 = 1 __pyx_2 = 0x6af870 "" __pyx_3 = (PyObject *) 0x0 __pyx_4 = (PyObject *) 0x0 __pyx_5 = (PyObject *) 0x0 #10 0xfe0ab780 in __pyx_f_5etree_tostring (__pyx_self=0x0, __pyx_args=0x1, __pyx_kwds=0x0) at src/lxml/etree.c:10045 __pyx_v_element_or_tree = (PyObject *) 0x11a4d28 __pyx_v_encoding = (PyObject *) 0x1113890 __pyx_v_xml_declaration = (PyObject *) 0x122acc __pyx_v_pretty_print = (PyObject *) 0x122acc __pyx_v_write_declaration = 1 __pyx_v_c_pretty_print = 1 __pyx_r = (PyObject *) 0x0 __pyx_1 = 1 __pyx_2 = (PyObject *) 0x0 __pyx_3 = (PyObject *) 0x0 __pyx_4 = (PyObject *) 0x0 __pyx_5 = (PyObject *) 0x0 __pyx_argnames = {0xfe116968 "element_or_tree", 0xfe115808 "encoding", 0xfe1157e8 "xml_declaration", 0xfe1157f8 "pretty_print", 0x0} #11 0xdb038 in PyCFunction_Call (func=0x221620, arg=0x5abed0, kw=0x117dae0) at Objects/methodobject.c:77 meth = 0xfe0ab008 <__pyx_f_5etree_tostring> self = (PyObject *) 0x0 size = 0 #12 0x26028 in PyObject_Call (func=0x221620, arg=0x5abed0, kw=0x117dae0) at Objects/abstract.c:1795 result = (PyObject *) 0x221620 call = 0xdafc8 <PyCFunction_Call> #13 0x8a514 in do_call (func=0x221620, pp_stack=0xfcf0c650, na=-1, nk=5947088) at Python/ceval.c:3771 callargs = (PyObject *) 0x5abed0 kwdict = (PyObject *) 0x117dae0 result = (PyObject *) 0x0 #14 0x88324 in call_function (pp_stack=0xfcf0c650, oparg=1) at Python/ceval.c:3586 na = 1 nk = 3 n = 7 ---Type <return> to continue, or q <return> to quit--- pfunc = (PyObject **) 0xeebf3c func = (PyObject *) 0x221620 x = (PyObject *) 0xfcf0c650 w = (PyObject *) 0xfcf0c650 #15 0x8565c in PyEval_EvalFrame (f=0xeebdd8) at Python/ceval.c:2163 sp = (PyObject **) 0xeebf40 stack_pointer = (PyObject **) 0xeebf5c next_instr = (unsigned char *) 0x1b1525 "|" opcode = 131 oparg = 769 why = WHY_NOT err = 0 x = (PyObject *) 0x122acc v = (PyObject *) 0x416558 w = (PyObject *) 0x224a20 u = (PyObject *) 0x6 t = (PyObject *) 0x301 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0xeebf24 freevars = (PyObject **) 0xeebf3c retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x2267e0 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x1b14b4 "t" names = (PyObject *) 0x1d8730 consts = (PyObject *) 0x20b998 #16 0x86b14 in PyEval_EvalCodeEx (co=0x2267e0, globals=0x0, locals=0xeebdd8, args=0x11139ec, argcount=3, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2736 kwcount = 0 closure = (PyObject *) 0xeebdd8 f = (PyFrameObject *) 0xeebdd8 retval = (PyObject *) 0x0 fastlocals = (PyObject **) 0xeebf24 freevars = (PyObject **) 0xeebf3c tstate = (PyThreadState *) 0x6af870 x = (PyObject *) 0x0 u = (PyObject *) 0xc #17 0xda520 in function_call (func=0x269670, arg=0x11139e0, kw=0x0) at Objects/funcobject.c:548 result = (PyObject *) 0x269670 argdefs = (PyObject *) 0x0 d = (PyObject **) 0x0 k = (PyObject **) 0x0 nk = 0 nd = 0 #18 0x26028 in PyObject_Call (func=0x269670, arg=0x11139e0, kw=0x0) at Objects/abstract.c:1795 result = (PyObject *) 0x269670 call = 0xda3d8 <function_call> #19 0x2e088 in instancemethod_call (func=0x269670, arg=0x11139e0, kw=0x0) at Objects/classobject.c:2447 self = (PyObject *) 0x416558 ---Type <return> to continue, or q <return> to quit--- class = (PyObject *) 0x2 result = (PyObject *) 0x269670 #20 0x26028 in PyObject_Call (func=0x269670, arg=0x11139e0, kw=0x0) at Objects/abstract.c:1795 result = (PyObject *) 0x1c7918 call = 0x2de70 <instancemethod_call> #21 0x2d76c in instance_call (func=0x416558, arg=0x5bda30, kw=0x0) at Objects/classobject.c:2004 res = (PyObject *) 0x416558 call = (PyObject *) 0x1c7918 #22 0x26028 in PyObject_Call (func=0x416558, arg=0x5bda30, kw=0x0) at Objects/abstract.c:1795 result = (PyObject *) 0x416558 call = 0x2d6ac <instance_call> #23 0x8a514 in do_call (func=0x416558, pp_stack=0xfcf0cd50, na=-1, nk=6019632) at Python/ceval.c:3771 callargs = (PyObject *) 0x5bda30 kwdict = (PyObject *) 0x0 result = (PyObject *) 0x0 #24 0x88324 in call_function (pp_stack=0xfcf0cd50, oparg=2) at Python/ceval.c:3586 na = 2 nk = 0 n = 2 pfunc = (PyObject **) 0x116bde0 func = (PyObject *) 0x416558 x = (PyObject *) 0xfcf0cd50 w = (PyObject *) 0xfcf0cd50 #25 0x8565c in PyEval_EvalFrame (f=0x116bc70) at Python/ceval.c:2163 sp = (PyObject **) 0x116bde4 stack_pointer = (PyObject **) 0x116bdec next_instr = (unsigned char *) 0x2865e0 "|" opcode = 131 oparg = 2 why = WHY_NOT err = 0 x = (PyObject *) 0x28e020 v = (PyObject *) 0x416530 w = (PyObject *) 0x150780 u = (PyObject *) 0x5b7cd8 t = (PyObject *) 0x2 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0x116bdbc freevars = (PyObject **) 0x116bdd8 retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x3dbc20 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x286574 "t" names = (PyObject *) 0x26cab0 consts = (PyObject *) 0x2c2dc0 #26 0x86b14 in PyEval_EvalCodeEx (co=0x3dbc20, globals=0x0, locals=0x116bc70, args=0xea400, argcount=959488, kws=0xea400, kwcount=1, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2736 kwcount = 1 closure = (PyObject *) 0x116bc70 ---Type <return> to continue, or q <return> to quit--- f = (PyFrameObject *) 0x116bc70 retval = (PyObject *) 0x0 fastlocals = (PyObject **) 0x116bdbc freevars = (PyObject **) 0x116bdd8 tstate = (PyThreadState *) 0x6af870 x = (PyObject *) 0x0 u = (PyObject *) 0x4 #27 0x884e4 in fast_function (func=0x3e2d30, pp_stack=0xfcf0cfa0, n=5, na=959488, nk=1) at Python/ceval.c:3656 co = (PyCodeObject *) 0xea000 globals = (PyObject *) 0x0 argdefs = (PyObject *) 0x12dc00 d = (PyObject **) 0x2a nd = 0 #28 0x8830c in call_function (pp_stack=0xfcf0cfa0, oparg=3) at Python/ceval.c:3584 na = 3 nk = 1 n = 5 pfunc = (PyObject **) 0xec5a60 func = (PyObject *) 0x3e2d30 x = (PyObject *) 0xfcf0cfa0 w = (PyObject *) 0xfcf0cfa0 #29 0x8565c in PyEval_EvalFrame (f=0xec58e8) at Python/ceval.c:2163 sp = (PyObject **) 0xec5a74 stack_pointer = (PyObject **) 0xec5a74 next_instr = (unsigned char *) 0x3c87d7 "\001|" opcode = 131 oparg = 258 why = WHY_NOT err = 0 x = (PyObject *) 0x4163a0 v = (PyObject *) 0x416418 w = (PyObject *) 0x1738a0 u = (PyObject *) 0x113fbc0 t = (PyObject *) 0x102 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0xec5a34 freevars = (PyObject **) 0xec5a5c retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x3db120 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x3c86d4 "t" names = (PyObject *) 0x279be0 consts = (PyObject *) 0x2c3df0 #30 0x86b14 in PyEval_EvalCodeEx (co=0x3db120, globals=0x0, locals=0xec58e8, args=0xea400, argcount=959488, kws=0xea400, kwcount=1, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2736 kwcount = 1 closure = (PyObject *) 0xec58e8 f = (PyFrameObject *) 0xec58e8 ---Type <return> to continue, or q <return> to quit--- retval = (PyObject *) 0x0 fastlocals = (PyObject **) 0xec5a34 freevars = (PyObject **) 0xec5a5c tstate = (PyThreadState *) 0x6af870 x = (PyObject *) 0x0 u = (PyObject *) 0x4 #31 0x884e4 in fast_function (func=0x3db330, pp_stack=0xfcf0d1f0, n=5, na=959488, nk=1) at Python/ceval.c:3656 co = (PyCodeObject *) 0xea000 globals = (PyObject *) 0x0 argdefs = (PyObject *) 0x12dc00 d = (PyObject **) 0x2a nd = 0 #32 0x8830c in call_function (pp_stack=0xfcf0d1f0, oparg=3) at Python/ceval.c:3584 na = 3 nk = 1 n = 5 pfunc = (PyObject **) 0xe98078 func = (PyObject *) 0x3db330 x = (PyObject *) 0xfcf0d1f0 w = (PyObject *) 0xfcf0d1f0 #33 0x8565c in PyEval_EvalFrame (f=0xe97f00) at Python/ceval.c:2163 sp = (PyObject **) 0xe9808c stack_pointer = (PyObject **) 0xe9808c next_instr = (unsigned char *) 0x3c87d7 "\001|" opcode = 131 oparg = 258 why = WHY_NOT err = 0 x = (PyObject *) 0x416260 v = (PyObject *) 0x416288 w = (PyObject *) 0x1738ac u = (PyObject *) 0xa t = (PyObject *) 0x102 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0xe9804c freevars = (PyObject **) 0xe98074 retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x3db120 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x3c86d4 "t" names = (PyObject *) 0x279be0 consts = (PyObject *) 0x2c3df0 #34 0x86b14 in PyEval_EvalCodeEx (co=0x3db120, globals=0x0, locals=0xe97f00, args=0xea400, argcount=959488, kws=0xea400, kwcount=1, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2736 kwcount = 1 closure = (PyObject *) 0xe97f00 f = (PyFrameObject *) 0xe97f00 retval = (PyObject *) 0x0 ---Type <return> to continue, or q <return> to quit--- fastlocals = (PyObject **) 0xe9804c freevars = (PyObject **) 0xe98074 tstate = (PyThreadState *) 0x6af870 x = (PyObject *) 0x0 u = (PyObject *) 0x4 #35 0x884e4 in fast_function (func=0x3db330, pp_stack=0xfcf0d440, n=5, na=959488, nk=1) at Python/ceval.c:3656 co = (PyCodeObject *) 0xea000 globals = (PyObject *) 0x0 argdefs = (PyObject *) 0x12dc00 d = (PyObject **) 0x2a nd = 0 #36 0x8830c in call_function (pp_stack=0xfcf0d440, oparg=3) at Python/ceval.c:3584 na = 3 nk = 1 n = 5 pfunc = (PyObject **) 0xeadd04 func = (PyObject *) 0x3db330 x = (PyObject *) 0xfcf0d440 w = (PyObject *) 0xfcf0d440 #37 0x8565c in PyEval_EvalFrame (f=0xeadba8) at Python/ceval.c:2163 sp = (PyObject **) 0xeadd18 stack_pointer = (PyObject **) 0xeadd18 next_instr = (unsigned char *) 0x3c4097 "\001|" opcode = 131 oparg = 258 why = WHY_NOT err = 0 x = (PyObject *) 0x40ec30 v = (PyObject *) 0x40ec30 w = (PyObject *) 0x1dae20 u = (PyObject *) 0x4 t = (PyObject *) 0x102 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0xeadcf4 freevars = (PyObject **) 0xeadd04 retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x2c3c60 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x3c3f3c "t" names = (PyObject *) 0x20ee40 consts = (PyObject *) 0x259bc0 #38 0x88458 in fast_function (func=0x2c3fb0, pp_stack=0x9e58b8, n=1, na=1, nk=7010416) at Python/ceval.c:3645 f = (PyFrameObject *) 0xeadba8 retval = (PyObject *) 0x2c3fb0 tstate = (PyThreadState *) 0x6af870 fastlocals = (PyObject **) 0x6af870 stack = (PyObject **) 0x9e58b8 ---Type <return> to continue, or q <return> to quit--- i = 1 co = (PyCodeObject *) 0x40ec30 globals = (PyObject *) 0x0 argdefs = (PyObject *) 0x0 d = (PyObject **) 0x2a nd = 0 #39 0x8830c in call_function (pp_stack=0xfcf0d608, oparg=1) at Python/ceval.c:3584 na = 1 nk = 0 n = 1 pfunc = (PyObject **) 0x9e58b4 func = (PyObject *) 0x2c3fb0 x = (PyObject *) 0xfcf0d608 w = (PyObject *) 0x9e58b8 #40 0x8565c in PyEval_EvalFrame (f=0x9e5758) at Python/ceval.c:2163 sp = (PyObject **) 0x9e58b8 stack_pointer = (PyObject **) 0x9e58b8 next_instr = (unsigned char *) 0x3c3d49 "\001qj" opcode = 131 oparg = 0 why = WHY_NOT err = 0 x = (PyObject *) 0x219c60 v = (PyObject *) 0x40ec30 w = (PyObject *) 0x2b02c8 u = (PyObject *) 0x4 t = (PyObject *) 0x0 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0x9e58a4 freevars = (PyObject **) 0x9e58b4 retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x2bece0 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x3c3ccc "|" names = (PyObject *) 0x3da300 consts = (PyObject *) 0x2c3630 #41 0x88458 in fast_function (func=0x2c3f30, pp_stack=0x2c7cf8, n=1, na=1, nk=7010416) at Python/ceval.c:3645 f = (PyFrameObject *) 0x9e5758 retval = (PyObject *) 0x2c3f30 tstate = (PyThreadState *) 0x6af870 fastlocals = (PyObject **) 0x6af870 stack = (PyObject **) 0x2c7cf8 i = 1 co = (PyCodeObject *) 0x40ec30 globals = (PyObject *) 0x0 argdefs = (PyObject *) 0x0 d = (PyObject **) 0x2a nd = 0 ---Type <return> to continue, or q <return> to quit--- #42 0x8830c in call_function (pp_stack=0xfcf0d7d0, oparg=1) at Python/ceval.c:3584 na = 1 nk = 0 n = 1 pfunc = (PyObject **) 0x2c7cf4 func = (PyObject *) 0x2c3f30 x = (PyObject *) 0xfcf0d7d0 w = (PyObject *) 0x2c7cf8 #43 0x8565c in PyEval_EvalFrame (f=0x2c7b98) at Python/ceval.c:2163 sp = (PyObject **) 0x2c7cf8 stack_pointer = (PyObject **) 0x2c7cf8 next_instr = (unsigned char *) 0x2cdb9f "\001Wn)\001\004t\021" opcode = 131 oparg = 0 why = WHY_NOT err = 0 x = (PyObject *) 0x1c7738 v = (PyObject *) 0x40ec30 w = (PyObject *) 0x1cd4c0 u = (PyObject *) 0x40ec30 t = (PyObject *) 0x0 stream = (PyObject *) 0x0 fastlocals = (PyObject **) 0x2c7ce4 freevars = (PyObject **) 0x2c7cf4 retval = (PyObject *) 0x0 tstate = (PyThreadState *) 0x6af870 co = (PyCodeObject *) 0x1cc8e0 instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = (unsigned char *) 0x2cdaf4 "zõ\001t" names = (PyObject *) 0x1378b8 consts = (PyObject *) 0x141e90 #44 0x86b14 in PyEval_EvalCodeEx (co=0x1cc8e0, globals=0x0, locals=0x2c7b98, args=0x415c5c, argcount=1, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2736 kwcount = 0 closure = (PyObject *) 0x2c7b98 f = (PyFrameObject *) 0x2c7b98 retval = (PyObject *) 0x0 fastlocals = (PyObject **) 0x2c7ce4 freevars = (PyObject **) 0x2c7cf4 tstate = (PyThreadState *) 0x6af870 x = (PyObject *) 0x0 u = (PyObject *) 0x4 #45 0xda520 in function_call (func=0x1d5c30, arg=0x415c50, kw=0x0) at Objects/funcobject.c:548 result = (PyObject *) 0x1d5c30 argdefs = (PyObject *) 0x0 d = (PyObject **) 0x0 k = (PyObject **) 0x0 nk = 0 nd = 0 #46 0x26028 in PyObject_Call (func=0x1d5c30, arg=0x415c50, kw=0x0) at Objects/abstract.c:1795 ---Type <return> to continue, or q <return> to quit--- result = (PyObject *) 0x1d5c30 call = 0xda3d8 <function_call> #47 0x2e088 in instancemethod_call (func=0x1d5c30, arg=0x415c50, kw=0x0) at Objects/classobject.c:2447 self = (PyObject *) 0x40ec30 class = (PyObject *) 0x0 result = (PyObject *) 0x1d5c30 #48 0x26028 in PyObject_Call (func=0x1d5c30, arg=0x415c50, kw=0x0) at Objects/abstract.c:1795 result = (PyObject *) 0x1c75f8 call = 0x2de70 <instancemethod_call> #49 0x8794c in PyEval_CallObjectWithKeywords (func=0x1c75f8, arg=0x12f030, kw=0x0) at Python/ceval.c:3430 result = (PyObject *) 0x1c75f8 #50 0xb7120 in t_bootstrap (boot_raw=0xdfd450) at ./Modules/threadmodule.c:434 tstate = (PyThreadState *) 0x6af870 res = (PyObject *) 0x12f030 (gdb) Best regards, Holger Der Inhalt dieser E-Mail ist vertraulich. Falls Sie nicht der angegebene Empfänger sind oder falls diese E-Mail irrtümlich an Sie adressiert wurde, verständigen Sie bitte den Absender sofort und löschen Sie die E-Mail sodann. Das unerlaubte Kopieren sowie die unbefugte Übermittlung sind nicht gestattet. Die Sicherheit von Übermittlungen per E-Mail kann nicht garantiert werden. Falls Sie eine Bestätigung wünschen, fordern Sie bitte den Inhalt der E-Mail als Hardcopy an. The contents of this e-mail are confidential. If you are not the named addressee or if this transmission has been addressed to you in error, please notify the sender immediately and then delete this e-mail. Any unauthorized copying and transmission is forbidden. E-Mail transmission cannot be guaranteed to be secure. If verification is required, please request a hard copy version.

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[lxml-dev] AssertionError: double registering proxy!
by Holger Joukl 23 Jan '07

23 Jan '07

Hi, I'm using such code cache = {} cache[msg] = list(msg.getiterator()) to speed up subsequent tree access in my application, keeping proxied Elements alive. I've now run into AssertionError: double registering proxy! errors: 2007/01/23 13:25:43:all2all_MainThread:ERROR: outmsg = self.mapper(msg) 2007/01/23 13:25:43:all2all_MainThread:ERROR: File "/data/pydev/hjoukl/PyTAF/pytaf/__PytafTestInstallation__/2006-Q3-BETA/lib/python2.4/site-packages/pytaf/mapper/FieldSelector.py", line 60, in __call__ 2007/01/23 13:25:43:all2all_MainThread:ERROR: cache[msg] = list(msg.getiterator()) 2007/01/23 13:25:43:all2all_MainThread:ERROR: File "etree.pyx", line 1562, in etree.ElementDepthFirstIterator.__next__ 2007/01/23 13:25:43:all2all_MainThread:ERROR: File "etree.pyx", line 1207, in etree._elementFactory 2007/01/23 13:25:43:all2all_MainThread:ERROR: File "proxy.pxi", line 28, in etree.registerProxy 2007/01/23 13:25:43:all2all_MainThread:ERROR:<ThreadedQueue name='TQ_normal'>: AssertionError: double registering proxy! I've not really an idea how that happens. This is a threaded program; might that be a problem? I'm using Python 2.4.3, lxml 1.1.2, libxml2 2.6.27, libxslt 1.1.18. Holger Der Inhalt dieser E-Mail ist vertraulich. Falls Sie nicht der angegebene Empfänger sind oder falls diese E-Mail irrtümlich an Sie adressiert wurde, verständigen Sie bitte den Absender sofort und löschen Sie die E-Mail sodann. Das unerlaubte Kopieren sowie die unbefugte Übermittlung sind nicht gestattet. Die Sicherheit von Übermittlungen per E-Mail kann nicht garantiert werden. Falls Sie eine Bestätigung wünschen, fordern Sie bitte den Inhalt der E-Mail als Hardcopy an. The contents of this e-mail are confidential. If you are not the named addressee or if this transmission has been addressed to you in error, please notify the sender immediately and then delete this e-mail. Any unauthorized copying and transmission is forbidden. E-Mail transmission cannot be guaranteed to be secure. If verification is required, please request a hard copy version.

1 0

[lxml-dev] lxml HTMLParser changes the resulting tree
by Eli Stevens (WG.c) 16 Jan '07

16 Jan '07

This is using lxml 1.1.2, note the "p" tag: >>> html = "<head><body><p><div/></p><br></body></html>" >>> parser = etree.HTMLParser() >>> et = etree.parse(StringIO(html), parser) >>> print etree.tostring(et.getroot()) <html><head/><body><p/><div/><br/></body></html> Now, p tags aren't supposed to contain block level elements: http://www.w3.org/TR/html401/struct/text.html#h-9.3.1 But the page that I'm seeing in the wild is structured that way, and I'd really like it if I could get a tree that represented the original file as closely as possible, even if it's semantically incorrect html (I like it closing <br> tags and such, but I'd really like to be able to, say, round-trip the data). Any idea if this is possible? Should I be taking this up with the libxml2 folks? Thanks, Eli

2 3

[lxml-dev] PyThread_release_lock segmentation fault
by Eli Stevens (WG.c) 13 Jan '07

13 Jan '07

Hello, I'm getting segmentation faults inside PyThread_release_lock when trying to use lxml 1.1.2. The various stack traces I have seen seem to vary, but they are all related to "__xmlRaiseError () from /usr/lib/libxml2.so.2" (I haven't produced very many test cases, so there might be other causes). The original lxml install was done with easy_install, but I get the same results when I test the source directly. I'm using libxml2-2.6.27, gcc 3.4.3, and python 2.4 on a relatively recent redhat install. I am able to use the standard libxml2 python bindings, so I don't think there is an issue with the libxml2 install. I installed the svn trunk-and-pyrex, and was able to compile and run make test, but the tests failed with a number of errors that seemed to be expected for using the dev trunk (wrong functionality, not segfaults). lxml 1.1.1 also segfaults for me, which leads me to believe there might be a bugfix on the trunk that hasn't been released yet. If so, is there a revision that contains the change that works? Below is a log of my session (the most interesting part is probably the gdb stack trace down at the bottom). Here are the commands I entered: gcc -v python ^D make clean make test gdb python run test.py bt Can anyone tell if this is a problem on my end, or on lxml's? Is there any more information that I can provide that might be of use? Sorry if all this is a bit verbose. :) Thanks, Eli --- elis@mapdev4:~/edit/external/tarball/lxml-1.1.2/src/lxml> gcc -v Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.3/specs Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk --host=i386-redhat-linux Thread model: posix gcc version 3.4.3 20050227 (Red Hat 3.4.3-22.1) elis@mapdev4:~/edit/external/tarball/lxml-1.1.2/src/lxml> python Python 2.4 (#1, Nov 30 2004, 11:25:14) [GCC 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> elis@mapdev4:~/edit/external/tarball/lxml-1.1.2> make clean find . $ -name '*.o' -o -name '*.c' -o -name '*.so' -o -name '*.py[cod]' -o -name '*.dll' $ -exec rm -f {} \; rm -rf build elis@mapdev4:~/edit/external/tarball/lxml-1.1.2> make test python setup.py build_ext -i Building lxml version 1.1.2 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/python2.4 -c src/lxml/etree.c -o build/temp.linux-i686-2.4/src/lxml/etree.o -w -I/usr/local/include -I/usr/local/include/libxml2 gcc -pthread -shared build/temp.linux-i686-2.4/src/lxml/etree.o -o src/lxml/etree.so -L/usr/local/lib -lexslt -lxslt -lxml2 -lz -lm building 'lxml.objectify' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.4 -c src/lxml/objectify.c -o build/temp.linux-i686-2.4/src/lxml/objectify.o -w -I/usr/local/include -I/usr/local/include/libxml2 gcc -pthread -shared build/temp.linux-i686-2.4/src/lxml/objectify.o -o src/lxml/objectify.so -L/usr/local/lib -lexslt -lxslt -lxml2 -lz -lm python test.py -p -v TESTED VERSION: Python: (2, 4, 0, 'final', 0) lxml.etree: (1, 1, 2, 0) libxml used: (2, 6, 16) libxml compiled: (2, 6, 27) libxslt used: (1, 1, 11) libxslt compiled: (1, 1, 19) 1/656 ( 0.2%): test_attribute_based_lookup (lxml.tests.test_classlookup.ClassLookupTestCase)make: *** [test_inplace] Segmentation fault elis@mapdev4:~/edit/external/tarball/lxml-1.1.2> gdb python GNU gdb Red Hat Linux (6.3.0.0-0.31rh) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"...(no debugging symbols found) Using host libthread_db library "/lib/tls/libthread_db.so.1". (gdb) run test.py Starting program: /usr/local/bin/python test.py (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread -1207994688 (LWP 25687)] (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) TESTED VERSION: Python: (2, 4, 0, 'final', 0) lxml.etree: (1, 1, 2, 0) libxml used: (2, 6, 16) libxml compiled: (2, 6, 27) libxslt used: (1, 1, 11) libxslt compiled: (1, 1, 19) Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1207994688 (LWP 25687)] 0x00a10b4a in sem_post(a)GLIBC_2.0 () from /lib/tls/libpthread.so.0 (gdb) bt #0 0x00a10b4a in sem_post(a)GLIBC_2.0 () from /lib/tls/libpthread.so.0 #1 0x080de5e2 in PyThread_release_lock () #2 0x0012430f in __pyx_f_5etree__receiveError (__pyx_v_c_log_handler=0xb7c42bcc, __pyx_v_error=0x9b5e308) at src/lxml/etree.c:15789 #3 0x00383ccc in __xmlRaiseError () from /usr/lib/libxml2.so.2 #4 0x0038525e in xmlKeepBlanksDefault () from /usr/lib/libxml2.so.2 #5 0x0040e58f in xmlSkipBlankChars () from /usr/lib/libxml2.so.2 #6 0x0041204a in xmlParseElement () from /usr/lib/libxml2.so.2 #7 0x003749ae in xmlParseDocument () from /usr/lib/libxml2.so.2 #8 0x00374b71 in xmlCleanupParser () from /usr/lib/libxml2.so.2 #9 0x00186726 in __pyx_f_5etree_11_BaseParser__parseDoc (__pyx_v_self=0x0, __pyx_v_c_text=0xb7fda8d4 "<root xmlns=\"myNS\" xmlns:other=\"otherNS\">\n <c1 a1=\"A1\" a2=\"A2\" other:a3=\"A3\">\n <c2 a1=\"C2\">0</c2>\n <c2>1</c2>\n <other:c2>2</other:c2>\n </c1>\n</root>", __pyx_v_c_len=159, __pyx_v_c_filename=0x0) at src/lxml/etree.c:20945 #10 0x00137132 in __pyx_f_5etree__parseMemoryDocument (__pyx_v_text=0xb7fda8c0, __pyx_v_url=0x8118bc0, __pyx_v_parser=0xb7c4466c) at src/lxml/etree.c:22182 #11 0x0016accc in __pyx_f_5etree_XML (__pyx_self=0x0, __pyx_args=0xb7ad0bac, __pyx_kwds=0x0) at src/lxml/etree.c:9712 #12 0x080b5122 in PyEval_EvalFrame () #13 0x080b569c in PyEval_EvalFrame () #14 0x080b5e22 in PyEval_EvalCodeEx () #15 0x080fcd9a in function_call () #16 0x0805bdb0 in PyObject_Call () #17 0x080641d5 in instancemethod_call () #18 0x0805bdb0 in PyObject_Call () #19 0x0808f352 in slot_tp_call () #20 0x0805bdb0 in PyObject_Call () #21 0x080b0e6d in PyEval_EvalFrame () #22 0x080b5e22 in PyEval_EvalCodeEx () #23 0x080fcd9a in function_call () #24 0x0805bdb0 in PyObject_Call () #25 0x080641d5 in instancemethod_call () #26 0x0805bdb0 in PyObject_Call () #27 0x0808f352 in slot_tp_call () #28 0x0805bdb0 in PyObject_Call () #29 0x080b0e6d in PyEval_EvalFrame () #30 0x080b569c in PyEval_EvalFrame () #31 0x080b569c in PyEval_EvalFrame () #32 0x080b5e22 in PyEval_EvalCodeEx () #33 0x080b5f8a in PyEval_EvalCode () #34 0x080d9f4c in PyRun_FileExFlags () #35 0x080da82e in PyRun_SimpleFileExFlags () #36 0x0805560f in Py_Main () #37 0x08054e3f in main ()

3 5

[lxml-dev] Build on AIX5
by Chris Allen 03 Jan '07

03 Jan '07

Hi guys, Managed to build lxml 1.1.2 on AIX5.2, however I had to make a minor patch to "setup.py" (at the bottom of this post for anyone interested). But when I tried to run the test suite it fails as shown below. The "Installing lxml" page on the website says that Python 2.3 is supported but "DocFileSuite" seems to have arrived in 2.4. Does that mean 2.3 isn't really supported for use with lxml? -bash-2.05b$ gmake test_inplace python setup.py build_ext -i Building lxml version 1.1.2 running build_ext python test.py -p -v TESTED VERSION: Python: (2, 3, 4, 'final', 0) lxml.etree: (1, 1, 2, 0) libxml used: (2, 6, 23) libxml compiled: (2, 6, 23) libxslt used: (1, 1, 15) libxslt compiled: (1, 1, 15) Traceback (most recent call last): File "test.py", line 591, in ? exitcode = main(sys.argv) File "test.py", line 554, in main test_cases = get_test_cases(test_files, cfg, tracer=tracer) File "test.py", line 258, in get_test_cases test_suite = module.test_suite() File "/home/matrix/lxml-1.1.2/src/lxml/tests/test_etree.py", line 1262, in test_suite suite.addTests( AttributeError: 'module' object has no attribute 'DocFileSuite' gmake: *** [test_inplace] Error 1 Thanks, Chris *** setup.py.orig Sun Oct 29 18:28:34 2006 --- setup.py Wed Jan 3 16:56:59 2007 *************** *** 124,129 **** --- 124,133 ---- xslt_libs.insert(i, libname.replace('xslt', 'exslt')) break + # Sometimes (eg. AIX) "libxml2" is missing from the link list. + if not xslt_libs.count('-lxml2'): + xslt_libs.extend(flags('xml2-config --libs')) + if '--rpath' in sys.argv: # compile with --rpath under gcc sys.argv.remove('--rpath')

1 1

[lxml-dev] How do I get the encoding of an XML document from libxml2?
by Jean Jordaan 03 Jan '07

03 Jan '07

Hi there This request actually concerns *avoiding* depending on lxml, so apologies for that :-] I'd like to find the encoding of an XML document, as detected by libxml2, using the Python bindings. From lxml, I can get it like this: >>> et <etree._ElementTree object at 0xb7cc992c> >>> et.docinfo.encoding 'windows-1252' According to the lxml API docs, lxml gets this information from libxml2 (see http://codespeak.net/lxml/api.html#parsers ) How do I get at it without depending on lxml? The only way I've been able to find is using debugDumpDocumentHead, which just prints to stdout. >>> dh = xml.debugDumpDocumentHead(xml) DOCUMENT version=1.0 encoding=windows-1252 standalone=true Regards, -- jean . .. .... //\\\oo///\\

1 0