如何为 BeautifulSoup XML 解析安装模块？

Question

在this answer 中，有人告诉我不要使用BeautifulSoup(xmlData, 'html.parser') 进行XML 解析，而是使用BeautifulSoup(xmlData, 'xml')。但是，该解析器不附带BeautifulSoup。

根据其中一位 cmets，我尝试了：

python -m pip install lxml

但是得到了：

Collecting lxml
  Using cached lxml-3.6.4.tar.gz
Installing collected packages: lxml
  Running setup.py install for lxml ... error
    Complete output from command D:\SOFT\Python3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\U
sers\\myuser\\AppData\\Local\\Temp\\pip-build-hl9fxzny\\lxml\\setup.py';f=getattr(tokenize, 'open', open)(__fi
le__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:
\Users\myuser\AppData\Local\Temp\pip-ivemv19a-record\install-record.txt --single-version-externally-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\isoschematron
    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\includes
    copying src\lxml\includes\htmlparser.pxd -> build\lib.win32-3.5\lxml\includes
    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\includes
    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\includes
    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.win32-3.5\lxml\isoschematron\reso
urces\xsl
    copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win32-3.5\lxml\isoschematron\reso
urces\xsl
    creating build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_abstract_expand.xsl -> build\lib.win
32-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_include.xsl -> build\lib.win32-
3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_message.xsl -> build\lib.
win32-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_skeleton_for_xslt1.xsl ->
 build\lib.win32-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_for_xslt1.xsl -> build\lib.win3
2-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt -> build\lib.win32-3.5\lxml\i
soschematron\resources\xsl\iso-schematron-xslt1
    running build_ext
    building 'lxml.etree' extension
    error: Unable to find vcvarsall.bat

    ----------------------------------------
Command "D:\SOFT\Python3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\myuser\\AppData\\L
ocal\\Temp\\pip-build-hl9fxzny\\lxml\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().repl
ace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:\Users\myuser\AppData\Lo
cal\Temp\pip-ivemv19a-record\install-record.txt --single-version-externally-managed --compile" failed with err
or code 1 in C:\Users\myuser\AppData\Local\Temp\pip-build-hl9fxzny\lxml\

我正在使用Python 3.5.2 并且想要可以直接使用pip，这意味着不需要单独编译。

Answer 1

您需要在 Windows 上使用编译器才能通过 pip 安装 lxml。

这里有一些非官方版本：http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml

找到正确的车轮包的 URL 然后这应该可以工作：

pip install http://url_to_wheel