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Python: error installing lxml on OS X

Whatever I installed with pip, I got this:

Command /usr/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip-0wnEw6-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml
Storing debug log for failure in /Users/youweizhu/Library/Logs/pip.log

For example:

$ pip install lxml

I got

Downloading/unpacking lxml
  Downloading lxml-3.4.1.tar.gz (3.5MB): 3.5MB downloaded
  Running setup.py (path:/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/setup.py) egg_info for package lxml
    /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
      warnings.warn(msg)
    Building lxml version 3.4.1.
    Building without Cython.
    Using build configuration of libxslt 1.1.28

    warning: no previously-included files found matching '*.py'
Installing collected packages: lxml
  Running setup.py install for lxml
    /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
      warnings.warn(msg)
    Building lxml version 3.4.1.
    Building without Cython.
    Using build configuration of libxslt 1.1.28
    building 'lxml.etree' extension
    cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch x86_64 -arch i386 -pipe -I/usr/include/libxml2 -I/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/src/lxml/includes -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.macosx-10.9-intel-2.7/src/lxml/lxml.etree.o -w -flat_namespace
    In file included from src/lxml/lxml.etree.c:239:
    /private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/src/lxml/includes/etree_defs.h:14:10: fatal error: 'libxml/xmlversion.h' file not found
    #include "libxml/xmlversion.h"
             ^
    1 error generated.
    error: command 'cc' failed with exit status 1
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip-0wnEw6-record/install-record.txt --single-version-externally-managed --compile:
    /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'

  warnings.warn(msg)

Building lxml version 3.4.1.

Building without Cython.

Using build configuration of libxslt 1.1.28

running install

running build

running build_py

creating build

creating build/lib.macosx-10.9-intel-2.7

creating build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/__init__.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/_elementpath.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/builder.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/cssselect.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/doctestcompare.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/ElementInclude.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/pyclasslookup.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/sax.py -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/usedoctest.py -> build/lib.macosx-10.9-intel-2.7/lxml

creating build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/__init__.py -> build/lib.macosx-10.9-intel-2.7/lxml/includes

creating build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/__init__.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/_diffcommand.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/_html5builder.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/_setmixin.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/builder.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/clean.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/defs.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/diff.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/ElementSoup.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/formfill.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/html5parser.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/soupparser.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

copying src/lxml/html/usedoctest.py -> build/lib.macosx-10.9-intel-2.7/lxml/html

creating build/lib.macosx-10.9-intel-2.7/lxml/isoschematron

copying src/lxml/isoschematron/__init__.py -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron

copying src/lxml/lxml.etree.h -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/lxml.etree_api.h -> build/lib.macosx-10.9-intel-2.7/lxml

copying src/lxml/includes/c14n.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/config.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/dtdvalid.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/etreepublic.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/htmlparser.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/relaxng.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/schematron.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/tree.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/uri.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/xinclude.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/xmlerror.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/xmlparser.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/xmlschema.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/xpath.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/xslt.pxd -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/etree_defs.h -> build/lib.macosx-10.9-intel-2.7/lxml/includes

copying src/lxml/includes/lxml-version.h -> build/lib.macosx-10.9-intel-2.7/lxml/includes

creating build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources

creating build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/rng

copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/rng

creating build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl

copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl

copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl

creating build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.macosx-10.9-intel-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.macosx-10.9-intel-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.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.macosx-10.9-intel-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

running build_ext

building 'lxml.etree' extension

creating build/temp.macosx-10.9-intel-2.7

creating build/temp.macosx-10.9-intel-2.7/src

creating build/temp.macosx-10.9-intel-2.7/src/lxml

cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch x86_64 -arch i386 -pipe -I/usr/include/libxml2 -I/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/src/lxml/includes -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.macosx-10.9-intel-2.7/src/lxml/lxml.etree.o -w -flat_namespace

In file included from src/lxml/lxml.etree.c:239:

/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/src/lxml/includes/etree_defs.h:14:10: fatal error: 'libxml/xmlversion.h' file not found

#include "libxml/xmlversion.h"

         ^

1 error generated.

error: command 'cc' failed with exit status 1

----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip-0wnEw6-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /private/var/folders/kn/mmhj7w0n54s4b2jr08sx46kr0000gn/T/pip_build_youweizhu/lxml
Storing debug log for failure in /Users/youweizhu/Library/Logs/pip.log

I'm crying...

+3


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3 answers


André Augusto noted

If you want to use lxml along with the official libxml2 Python bindings (probably because one of your dependencies uses this), you must Build lxml statically. Otherwise, these two packages will interfere in places where libxml2 requires global configuration, can have any effect from disappearing functionality to crashing in either of the two.

To get a static build, run either the --static-deps option, or the setup.py script, or run pip with STATIC_DEPS or STATICBUILD, the environment variable is set to true, i.e.

STATIC_DEPS = true pip install lxml

The STATICBUILD environment variable is treated equivalently to STATIC_DEPS, but is used by some other expansion packs, too.



from lxml documentation. http://lxml.de/installation.html#using-lxml-with-python-libxml2

his original post is here: Can't install Lxml on Mac os x 10.9 There are also some other ios related fixes.

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try this command:

STATIC_DEPS=true pip install lxml

from doc: http://lxml.de/installation.html#using-lxml-with-python-libxml2



or Try:

sudo ln -s  /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2/libxml/ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml
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Here is the line that works

STATIC_DEPS=true LIBXML2_VERSION=2.9.2 pip install lxml

I had the same problem and found this answer at http://louistiao.me/posts/installing-lxml-on-mac-osx-1011-inside-a-virtualenv-with-pip/

I am also raising a bug at https://bugs.launchpad.net/lxml/+bug/1546046 and I recommend you add a comment there, otherwise it will be ignored and the lxml user experience will continue to suck.

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