easy_install lxml on Python 2.7 on Windows

I'm using python 2.7 on Windows. How come the following error occurs when I try to install [lxml][1] using [setuptools][2]'s easy_install? ``` C:\>easy_install lxml Searching for lxml Reading http://pypi.python.org/simple/lxml/ Reading http://codespeak.net/lxml Best match: lxml 2.3.3 Downloading http://lxml.de/files/lxml-2.3.3.tgz Processing lxml-2.3.3.tgz Running lxml-2.3.3\setup.py -q bdist_egg --dist-dir c:\users\my_user\appdata\local\temp\easy_install-mtrdj2\lxml-2.3.3\egg-dist-tmp-tq8rx4 Building lxml version 2.3.3. Building without Cython. ERROR: 'xslt-config' is not recognized as an internal or external command, operable program or batch file. ** make sure the development packages of libxml2 and libxslt are installed ** Using build configuration of libxslt warning: no files found matching 'lxml.etree.c' under directory 'src\lxml' warning: no files found matching 'lxml.objectify.c' under directory 'src\lxml' warning: no files found matching 'lxml.etree.h' under directory 'src\lxml' warning: no files found matching 'lxml.etree_api.h' under directory 'src\lxml' warning: no files found matching 'etree_defs.h' under directory 'src\lxml' warning: no files found matching 'pubkey.asc' under directory 'doc' warning: no files found matching 'tagpython*.png' under directory 'doc' warning: no files found matching 'Makefile' under directory 'doc' error: Setup script exited with error: Unable to find vcvarsall.bat ``` Downloading the package and running `setup.py install` also doesn't help: ``` D:\My Documents\Installs\Dev\Python\lxml\lxml-2.3.3>setup.py install Building lxml version 2.3.3. Building without Cython. ERROR: 'xslt-config' is not recognized as an internal or external command, operable program or batch file. ** make sure the development packages of libxml2 and libxslt are installed ** Using build configuration of libxslt running install running bdist_egg running egg_info writing src\lxml.egg-info\PKG-INFO writing top-level names to src\lxml.egg-info\top_level.txt writing dependency_links to src\lxml.egg-info\dependency_links.txt reading manifest file 'src\lxml.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' warning: no files found matching 'lxml.etree.c' under directory 'src\lxml' warning: no files found matching 'lxml.objectify.c' under directory 'src\lxml' warning: no files found matching 'lxml.etree.h' under directory 'src\lxml' warning: no files found matching 'lxml.etree_api.h' under directory 'src\lxml' warning: no files found matching 'etree_defs.h' under directory 'src\lxml' warning: no files found matching 'pubkey.asc' under directory 'doc' warning: no files found matching 'tagpython*.png' under directory 'doc' warning: no files found matching 'Makefile' under directory 'doc' writing manifest file 'src\lxml.egg-info\SOURCES.txt' installing library code to build\bdist.win32\egg running install_lib running build_py creating build creating build\lib.win32-2.7 creating build\lib.win32-2.7\lxml copying src\lxml\builder.py -> build\lib.win32-2.7\lxml copying src\lxml\cssselect.py -> build\lib.win32-2.7\lxml copying src\lxml\doctestcompare.py -> build\lib.win32-2.7\lxml copying src\lxml\ElementInclude.py -> build\lib.win32-2.7\lxml copying src\lxml\pyclasslookup.py -> build\lib.win32-2.7\lxml copying src\lxml\sax.py -> build\lib.win32-2.7\lxml copying src\lxml\usedoctest.py -> build\lib.win32-2.7\lxml copying src\lxml\_elementpath.py -> build\lib.win32-2.7\lxml copying src\lxml\__init__.py -> build\lib.win32-2.7\lxml creating build\lib.win32-2.7\lxml\html copying src\lxml\html\builder.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\clean.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\defs.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\diff.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\ElementSoup.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\formfill.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\html5parser.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\soupparser.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\usedoctest.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\_dictmixin.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\_diffcommand.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\_html5builder.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\_setmixin.py -> build\lib.win32-2.7\lxml\html copying src\lxml\html\__init__.py -> build\lib.win32-2.7\lxml\html creating build\lib.win32-2.7\lxml\isoschematron copying src\lxml\isoschematron\__init__.py -> build\lib.win32-2.7\lxml\isoschematron copying src\lxml\etreepublic.pxd -> build\lib.win32-2.7\lxml copying src\lxml\tree.pxd -> build\lib.win32-2.7\lxml copying src\lxml\etree_defs.h -> build\lib.win32-2.7\lxml creating build\lib.win32-2.7\lxml\isoschematron\resources creating build\lib.win32-2.7\lxml\isoschematron\resources\rng copying src\lxml\isoschematron\resources\rng\iso-schematron.rng -> build\lib.win32-2.7\lxml\isoschematron\resources\rng creating build\lib.win32-2.7\lxml\isoschematron\resources\xsl copying src\lxml\isoschematron\resources\xsl\RNG2Schtrn.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl creating build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_abstract_expand.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_include.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_message.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_skeleton_for_xslt1.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_for_xslt1.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 running build_ext building 'lxml.etree' extension error: Unable to find vcvarsall.bat [1]: http://lxml.de/ [2]: http://pypi.python.org/pypi/setuptools ```