lxml installation error ubuntu 14.04 (internal compiler error)

I am having problems with installing lxml. I have tried the solutions of the relative questions in this site and other sites but could not fix the problem. Need some suggestions/solution on this.

I am providing the full log after executing pip install lxml,

Downloading/unpacking lxml
  Downloading lxml-3.3.5.tar.gz (3.5MB): 3.5MB downloaded
  Running setup.py (path:/tmp/pip_build_root/lxml/setup.py) egg_info for package lxml
    /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
      warnings.warn(msg)
    Building lxml version 3.3.5.
    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
    /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
      warnings.warn(msg)
    Building lxml version 3.3.5.
    Building without Cython.
    Using build configuration of libxslt 1.1.28
    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_root/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: internal compiler error: Killed (program cc1)
    Please submit a full bug report,
    with preprocessed source if appropriate.
    See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 4
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-KUq9VD-record/install-record.txt --single-version-externally-managed --compile:
    /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'

  warnings.warn(msg)

Building lxml version 3.3.5.

Building without Cython.

Using build configuration of libxslt 1.1.28

running install

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/pyclasslookup.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/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/_elementpath.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/__init__.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/html5parser.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/builder.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/_diffcommand.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/_html5builder.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/defs.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/soupparser.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/usedoctest.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/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/tree.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/xmlparser.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/schematron.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/c14n.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/xmlschema.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/relaxng.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/etree_defs.h -> 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

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/RNG2Schtrn.xsl -> 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

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_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/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_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/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_root/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: internal compiler error: Killed (program cc1)

Please submit a full bug report,

with preprocessed source if appropriate.

See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.

error: command 'x86_64-linux-gnu-gcc' failed with exit status 4

----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-KUq9VD-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/lxml
Storing debug log for failure in /root/.pip/pip.log

Also, the pip.log file looks like this,

status = self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 283, in run
    requirement_set.install(install_options, global_options, root=options.root_path)
  File "/usr/lib/python2.7/dist-packages/pip/req.py", line 1435, in install
    requirement.install(install_options, global_options, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/pip/req.py", line 706, in install
    cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False)
  File "/usr/lib/python2.7/dist-packages/pip/util.py", line 697, in call_subprocess
    % (command_desc, proc.returncode, cwd))
InstallationError: Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-KUq9VD-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/lxml

dmesg | tail command shows output like this,

[1744367.676147] Out of memory: Kill process 25518 (cc1) score 388 or sacrifice child
[1744367.676665] Killed process 25518 (cc1) total-vm:242352kB, anon-rss:200608kB, file-rss:0kB

It's seems like a memory issue. I am taking reference form this question

In this particular case, it has nothing to do with dependencies, it's a memory problem.

I had this problem within a virtualbox VM. My solution was to increase memory allocated to the VM from the default 512Mb to 1024Mb.

Possible solution (if you have no ability to increase memory on that machine) is to add swap file.

sudo dd if=/dev/zero of=/swapfile bs=1024 count=524288
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

from https://github.com/pydata/pandas/issues/1880#issuecomment-9920484

This worked for me on smallest digital ocean machine

Drake Guan

Refer to https://stackoverflow.com/a/6504860/261718

Go install some dev packages before pip install lxml

apt-get install libxml2-dev libxslt1-dev python-dev

Using digitalocean smallest machine you can just turn off mysql and apache while compiling using

sudo service apache2 stop
sudo service mysql stop

and after installing lxml turn them on again using this commands with 'start' instead of 'stop'. Works pretty well for me without using swap file

If @Drake answer does not work for you try adding lib1g-dev.

$ sudo apt-get install -y libxml2-dev libxslt1-dev zlib1g-dev

来源：https://stackoverflow.com/questions/24455238/lxml-installation-error-ubuntu-14-04-internal-compiler-error

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