所以我正在尝试在我的机器上安装lxml，而我似乎无法让它工作。
我有Windows 8.1 64位和python 3.5
我用过两个
pip install lxml
和
easy_install lxml
我不断收到此错误消息：
C:\Users\jgarber\Downloads>pip install readability-lxml --upgrade Requirement already up-to-date: readability-lxml in c:\python\lib\site-packages\ readability_lxml-0.6.2-py3.5.egg Requirement already up-to-date: chardet in c:\python\lib\site-packages (from rea dability-lxml) Collecting lxml (from readability-lxml) Using cached lxml-3.6.4.tar.gz Requirement already up-to-date: cssselect in c:\python\lib\site-packages\csssele ct-1.0.0-py3.5.egg (from readability-lxml) Installing collected packages: lxml Running setup.py install for lxml ... error
Complete output from command c:\python\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\jgarber\\AppData\\Local\\Temp\\pip-build-bypbiu8j\ \lxml\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().r eplace('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\jgarber\AppD ata\Local\Temp\pip-j8svsde4-record\install-record.txt
--single-version-externall y-managed --compile:
Building lxml version 3.6.4.
Building without Cython.
ERROR: b"'xslt-config' is not recognized as an internal or external command, \r\noperable program or batch file.\r\n"
** make sure the development packages of libxml2 and libxslt are installed *
*
Using build configuration of libxslt
running install
running build
running build_py
creating build
creating build\lib.win32-3.5
creating build\lib.win32-3.5\lxml
copying src\lxml\builder.py -> build\lib.win32-3.5\lxml
copying src\lxml\cssselect.py -> build\lib.win32-3.5\lxml
copying src\lxml\doctestcompare.py -> build\lib.win32-3.5\lxml
copying src\lxml\ElementInclude.py -> build\lib.win32-3.5\lxml
copying src\lxml\pyclasslookup.py -> build\lib.win32-3.5\lxml
copying src\lxml\sax.py -> build\lib.win32-3.5\lxml
copying src\lxml\usedoctest.py -> build\lib.win32-3.5\lxml
copying src\lxml\_elementpath.py -> build\lib.win32-3.5\lxml
copying src\lxml\__init__.py -> build\lib.win32-3.5\lxml
creating build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\__init__.py -> build\lib.win32-3.5\lxml\includes
creating build\lib.win32-3.5\lxml\html
copying src\lxml\html\builder.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\clean.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\defs.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\diff.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\ElementSoup.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\formfill.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\html5parser.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\soupparser.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\usedoctest.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\_diffcommand.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\_html5builder.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\_setmixin.py -> build\lib.win32-3.5\lxml\html
copying src\lxml\html\__init__.py -> build\lib.win32-3.5\lxml\html
creating build\lib.win32-3.5\lxml\isoschematron
copying src\lxml\isoschematron\__init__.py -> build\lib.win32-3.5\lxml\isosc hematron
copying src\lxml\lxml.etree.h -> build\lib.win32-3.5\lxml
copying src\lxml\lxml.etree_api.h -> build\lib.win32-3.5\lxml
copying src\lxml\includes\c14n.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\config.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\dtdvalid.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\etreepublic.pxd -> build\lib.win32-3.5\lxml\includ es
copying src\lxml\includes\htmlparser.pxd -> build\lib.win32-3.5\lxml\include s
copying src\lxml\includes\relaxng.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\schematron.pxd -> build\lib.win32-3.5\lxml\include s
copying src\lxml\includes\tree.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\uri.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\xinclude.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\xmlerror.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\xmlparser.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\xmlschema.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\xpath.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\xslt.pxd -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\etree_defs.h -> build\lib.win32-3.5\lxml\includes
copying src\lxml\includes\lxml-version.h -> build\lib.win32-3.5\lxml\include s
creating build\lib.win32-3.5\lxml\isoschematron\resources
creating build\lib.win32-3.5\lxml\isoschematron\resources\rng
copying src\lxml\isoschematron\resources\rng\iso-schematron.rng -> build\lib .win32-3.5\lxml\isoschematron\resources\rng
creating build\lib.win32-3.5\lxml\isoschematron\resources\xsl
copying src\lxml\isoschematron\resources\xsl\RNG2Schtrn.xsl -> build\lib.win 32-3.5\lxml\isoschematron\resources\xsl
copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win 32-3.5\lxml\isoschematron\resources\xsl
creating build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schematron
-xslt1
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_abstra ct_expand.xsl -> build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schema tron-xslt1
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_i nclude.xsl -> build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schematro n-xslt1
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schema tron_message.xsl -> build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-sch ematron-xslt1
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schema tron_skeleton_for_xslt1.xsl -> build\lib.win32-3.5\lxml\isoschematron\resources\ xsl\iso-schematron-xslt1
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_f or_xslt1.xsl -> build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schemat ron-xslt1
copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt
-> build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
running build_ext
building 'lxml.etree' extension
creating build\temp.win32-3.5
creating build\temp.win32-3.5\Release
creating build\temp.win32-3.5\Release\src
creating build\temp.win32-3.5\Release\src\lxml
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Isrc\lxml\includes
-Ic:\python\include -Ic:\python\in clude "-IC:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\INCLUDE" "-IC:\P rogram Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt" "-IC:\Program File s (x86)\Windows Kits\8.1\include\shared" "-IC:\Program Files (x86)\Windows Kits\
8.1\include\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\winrt" /Tcsrc \lxml\lxml.etree.c /Fobuild\temp.win32-3.5\Release\src\lxml\lxml.etree.obj -w
cl : Command line warning D9025 : overriding '/W3' with '/w'
lxml.etree.c
src\lxml\includes\etree_defs.h(14): fatal error C1083: Cannot open include f ile: 'libxml/xmlversion.h': No such file or directory
Compile failed: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14 .0\\VC\\BIN\\cl.exe' failed with exit status 2
creating Users
creating Users\jgarber
creating Users\jgarber\AppData
creating Users\jgarber\AppData\Local
creating Users\jgarber\AppData\Local\Temp
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -I/usr/include/libxml2 "-IC:\Program Files (x86)\Micro soft Visual Studio 14.0\VC\INCLUDE" "-IC:\Program Files (x86)\Windows Kits\10\in clude\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\8.1\include\shar ed" "-IC:\Program Files (x86)\Windows Kits\8.1\include\um" "-IC:\Program Files ( x86)\Windows Kits\8.1\include\winrt" /TcC:\Users\jgarber\AppData\Local\Temp\xmlX PathInit_qrahzea.c /FoUsers\jgarber\AppData\Local\Temp\xmlXPathInit_qrahzea.obj
xmlXPathInit_qrahzea.c
C:\Users\jgarber\AppData\Local\Temp\xmlXPathInit_qrahzea.c(1): fatal error C 1083: Cannot open include file: 'libxml/xpath.h': No such file or directory
****************************************************************************
*****
Could not find function xmlCheckVersion in library libxml2. Is libxml2 insta lled?
****************************************************************************
*****
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\B IN\\cl.exe' failed with exit status 2
---------------------------------------- Command "c:\python\python.exe -u -c "import setuptools, tokenize;__file__='C:\\U sers\\jgarber\\AppData\\Local\\Temp\\pip-build-bypbiu8j\\lxml\\setup.py';exec(co mpile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __ file__, 'exec'))" install --record C:\Users\jgarber\AppData\Local\Temp\pip-j8svs de4-record\install-record.txt --single-version-externally-managed
--compile" fai led with error code 1 in C:\Users\jgarber\AppData\Local\Temp\pip-build-bypbiu8j\ lxml\
我也尝试从http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml下载.whl并尝试手动安装滚轮但收到此错误消息：
C:\Users\jgarber\Downloads>pip install lxml-3.6.4-cp35-cp35m-win_amd64.whl
lxml-3.6.4-cp35-cp35m-win_amd64.whl is not a supported wheel on this platform.
即使使用python -m pip install语句。
此时我不确定我缺少什么，非常感谢任何帮助。
答案 0 :(得分：2)
默认情况下，Python将在Windows上以32位安装，甚至在64位系统上。因此，要匹配此选项，必须为32位系统选择方向盘。
您可以验证您的Python解释器是否为32位，因为REPL在启动时将如下所示：
Python 3.5.2 (v3.5.2:4def2a2901a5, Jun 25 2016, 22:01:18) [MSC v.1900 32 bit (Intel)] on win32
你应该在Windows上为Python 3.5选择lxml-3.6.4-cp35-cp35m-win32.whl包（除非你在下载Python时明确选择了64位），这应该可以解决你的问题。
答案 1 :(得分：1)
他们从lxml 4.2.5版本开始解决了此问题。
如果仍然遇到此问题，请查看您的需求文件是否指定了lxml的特定版本。如果是这样，您应该能够通过将指定的版本更新为4.2.5或更高版本来解决该问题。