Geek Answers Handbook

Failed to install lxml on ubuntu

I am trying to install lxml inside virtualenv on ubuntu 14.04.

$ uname -a Linux foobar 3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty

I have dependencies installed as indicated in the lxml documentation. Here are the specific packages that I installed:

 $ dpkg-query -l | grep libxml ii libxml-commons-external-java 1.4.01-2build1 all XML Commons external code - DOM, SAX, and JAXP, etc ii libxml-commons-resolver1.1-java 1.2-7build1 all XML entity and URI resolver library ii libxml-parser-perl 2.41-1build3 amd64 Perl module for parsing XML files ii libxml2:amd64 2.9.1+dfsg1-3ubuntu4.4 amd64 GNOME XML library ii libxml2-dev:amd64 2.9.1+dfsg1-3ubuntu4.4 amd64 Development files for the GNOME XML library ii python-lxml 3.3.3-1ubuntu0.1 amd64 pythonic binding for the libxml2 and libxslt libraries $ dpkg-query -l | grep libxslt ii libxslt1-dev:amd64 1.1.28-2build1 amd64 XSLT 1.0 processing library - development kit ii libxslt1.1:amd64 1.1.28-2build1 amd64 XSLT 1.0 processing library - runtime library ii python-lxml 3.3.3-1ubuntu0.1 amd64 pythonic binding for the libxml2 and libxslt libraries $ dpkg-query -l | grep python-dev ii libpython-dev:amd64 2.7.5-5ubuntu3 amd64 header files and a static library for Python (default) ii python-dev 2.7.5-5ubuntu3 amd64 header files and a static library for Python (default)

When I try to install inside virtualenv:

 $ virtualenv venv New python executable in venv/bin/python Installing setuptools, pip, wheel...done. ~$ source venv/bin/activate (venv)~$ export PATH=$PATH:/usr/lib/gcc/x86_64-linux-gnu/4.8/ # If I don't do this cc1 is not found and the build fails (venv)~$ pip install lxml Collecting lxml Using cached lxml-3.4.4.tar.gz Building wheels for collected packages: lxml Running setup.py bdist_wheel for lxml Complete output from command /home/plasma/venv/bin/python -c "import setuptools;__file__='/tmp/pip-build-Fs3av2/lxml/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpoWlzvPpip-wheel-: /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url' warnings.warn(msg) Building lxml version 3.4.4. Building without Cython. Using build configuration of libxslt 1.1.28 running bdist_wheel running build running build_py creating build creating build/lib.linux-x86_64-2.7 creating build/lib.linux-x86_64-2.7/lxml copying src/lxml/__init__.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/doctestcompare.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/builder.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/ElementInclude.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/pyclasslookup.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/_elementpath.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/cssselect.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/sax.py -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml creating build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/__init__.py -> build/lib.linux-x86_64-2.7/lxml/includes creating build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/_diffcommand.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/ElementSoup.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/__init__.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/builder.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/html5parser.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/soupparser.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/_html5builder.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/formfill.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/diff.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/clean.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/_setmixin.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml/html copying src/lxml/html/defs.py -> build/lib.linux-x86_64-2.7/lxml/html creating build/lib.linux-x86_64-2.7/lxml/isoschematron copying src/lxml/isoschematron/__init__.py -> build/lib.linux-x86_64-2.7/lxml/isoschematron copying src/lxml/lxml.etree.h -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/lxml.etree_api.h -> build/lib.linux-x86_64-2.7/lxml copying src/lxml/includes/schematron.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/tree.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/xslt.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/uri.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/relaxng.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/c14n.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/config.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/xpath.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/xinclude.pxd -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.7/lxml/includes copying src/lxml/includes/etree_defs.h -> build/lib.linux-x86_64-2.7/lxml/includes creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1 running build_ext building 'lxml.etree' extension creating build/temp.linux-x86_64-2.7 creating build/temp.linux-x86_64-2.7/src creating build/temp.linux-x86_64-2.7/src/lxml x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libxml2 -I/tmp/pip-build-Fs3av2/lxml/src/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -lxslt -lexslt -lxml2 -lz -lm -o build/lib.linux-x86_64-2.7/lxml/etree.so x86_64-linux-gnu-gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found compilation terminated. error: command 'x86_64-linux-gnu-gcc' failed with exit status 4 ---------------------------------------- Failed building wheel for lxml Failed to build lxml Installing collected packages: lxml Running setup.py install for lxml Complete output from command /home/plasma/venv/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-Fs3av2/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-23Wgk1-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/plasma/venv/include/site/python2.7/lxml: /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url' warnings.warn(msg) Building lxml version 3.4.4. Building without Cython. Using build configuration of libxslt 1.1.28 running install running build running build_py copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.7/lxml/includes running build_ext building 'lxml.etree' extension x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libxml2 -I/tmp/pip-build-Fs3av2/lxml/src/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -lxslt -lexslt -lxml2 -lz -lm -o build/lib.linux-x86_64-2.7/lxml/etree.so x86_64-linux-gnu-gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found compilation terminated. error: command 'x86_64-linux-gnu-gcc' failed with exit status 4 ---------------------------------------- Command "/home/plasma/venv/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-Fs3av2/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-23Wgk1-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/plasma/venv/include/site/python2.7/lxml" failed with error code 1 in /tmp/pip-build-Fs3av2/lxml (venv)~$

However, I have liblto_plugin.so:

 $ find -name liblto_plugin* 2> /dev/null ./usr/lib/gcc/x86_64-linux-gnu/4.8/liblto_plugin.so ./usr/lib/gcc/x86_64-linux-gnu/4.8/liblto_plugin.so.0 ./usr/lib/gcc/x86_64-linux-gnu/4.8/liblto_plugin.so.0.0.0

I know that I can install lxml using apt-get, but I'm trying to create a virtual environment in which I can install these packages so that I have a consistent environment for unit tests.

Any suggestions on how to make this work would be appreciated.

+4
source share
1 answer

I have a solution when everything else fails. Go to this site. http://www.lfd.uci.edu/~gohlke/pythonlibs/ This has ALL BIG Python libraries, with whl files for each installation type, 32-bit and 64-bit, and all versions of Python from version 2.6 (including beta 3.5)!

0
source

More articles:


All Articles