I am installing lxml-2.0beta1 on python 2.3 on RHEL4. I brought my libxml2 and libxslt up to date: libxml2-2.6.30-1 libxslt-1.1.22-1 then easy-install -U lxml During the install process, I got this: easy_install-2.3 -U lxml Searching for lxml Reading http://pypi.python.org/simple/lxml/ Reading http://codespeak.net/lxml Best match: lxml 2.0beta1 Downloading http://cheeseshop.python.org/packages/source/l/lxml/lxml-2.0beta1.tar.gz Processing lxml-2.0beta1.tar.gz Running lxml-2.0beta1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-SE9_WX/lxml-2.0beta1/egg-dist-tmp-onxV0q Building lxml version 2.0.beta1. NOTE: Trying to build without Cython, pre-generated 'src/lxml/etree.c' needs to be available. warning: no previously-included files found matching 'doc/pyrex.txt' warning: no previously-included files found matching 'src/lxml/etree.pxi' File "build/bdist.linux-i686/egg/lxml/html/diff.py", line 323 start.extend(tag for name, pos, tag in tag_stack) ^ SyntaxError: invalid syntax File "/usr/local/lib/python2.3/site-packages/lxml-2.0beta1-py2.3-linux-i686.egg/lxml/html/diff.py", line 323 start.extend(tag for name, pos, tag in tag_stack) ^ SyntaxError: invalid syntax Adding lxml 2.0beta1 to easy-install.pth file Installed /usr/local/lib/python2.3/site-packages/lxml-2.0beta1-py2.3-linux-i686.egg Processing dependencies for lxml Finished processing dependencies for lxml And when I try to run an application that uses lxml, I get this: @400000004793fafb29d86124 Traceback (most recent call last): @400000004793fafb29e1c764 File "/misc/home/bkc/src/Python/MurkWorks/Rating/RatingServer.py", line 13, in ? @400000004793fafb29e2b994 from MurkWorks.Carriers.Rater import Rater, get_carrier_service_mapper @400000004793fafb29ee36fc File "/misc/home/bkc/src/Python/MurkWorks/Carriers/Rater.py", line 22, in ? @400000004793fafb29eee2dc import UPS, BAX, CCX, Estes, FedexFreight, FedexExpress, FedexGround, USPS, Yellow, Aaction, LandAir, FedexNational, CentralTransport @400000004793fafb29f3d094 File "/misc/home/bkc/src/Python/MurkWorks/Carriers/CentralTransport.py", line 14, in ? @400000004793fafb29f4a76c from lxml import etree @400000004793fafb29f55734 ImportError: /usr/local/lib/python2.3/site-packages/lxml-2.0beta1-py2.3-linux-i686.egg/lxml/etree.so: undefined symbol: PyDict_Contains On my development server I'm running alpha3, so I'm trying to to install that now: http://cheeseshop.python.org/packages/source/l/lxml/lxml-2.0alpha3.tar.gz But that fails:: NOTE: Trying to build without Cython, pre-generated 'src/lxml/etree.c' needs to be available. warning: no previously-included files found matching 'doc/pyrex.txt' warning: no previously-included files found matching 'src/lxml/etree.pxi' src/lxml/etree.c:73843: error: `METH_COEXIST' undeclared here (not in a function) src/lxml/etree.c:73843: error: initializer element is not constant src/lxml/etree.c:73843: error: (near initialization for `__pyx_methods_5etree_QName[0].ml_flags') src/lxml/etree.c:73843: error: initializer element is not constant src/lxml/etree.c:73843: error: (near initialization for `__pyx_methods_5etree_QName[0]') same error with alpha4 Oops, and alpha5 is: Building lxml version 2.0.alpha5. NOTE: Trying to build without Cython, pre-generated 'src/lxml/etree.c' needs to be available. warning: no previously-included files found matching 'doc/pyrex.txt' warning: no previously-included files found matching 'src/lxml/etree.pxi' File "build/bdist.linux-i686/egg/lxml/html/diff.py", line 323 start.extend(tag for name, pos, tag in tag_stack) ^ SyntaxError: invalid syntax File "/usr/local/lib/python2.3/site-packages/lxml-2.0alpha5-py2.3-linux-i686.egg/lxml/html/diff.py", line 323 start.extend(tag for name, pos, tag in tag_stack) ^ SyntaxError: invalid syntax Adding lxml 2.0alpha5 to easy-install.pth file Installed /usr/local/lib/python2.3/site-packages/lxml-2.0alpha5-py2.3-linux-i686.egg Processing dependencies for lxml==2.0alpha5 Finished processing dependencies for lxml==2.0alpha5 It looks like it's going to be a late night for me re-writing to not use lxml on the production server. -- Brad Clements, bkc@murkworks.com (315)268-1000 http://www.murkworks.com AOL-IM: BKClements