無法在python 3.5上安裝lxml

Question

我通過此站點和其他站點搜索解決問題的方法。 不幸的是，沒有給出的解決方案對我有幫助。

我的問題如下。 我想安裝python lxml庫，但是每次遇到錯誤時，我都會安裝。

1）當我嘗試在pycharm中安裝lxml時，出現以下錯誤：

ERROR: b"'xslt-config' is not recognized as an internal or external      command,\r\noperable program or batch file.\r\n"

2）當我嘗試使用pip install lxml在命令行中安裝lxml時，出現以下錯誤：

C:\Windows\system32>pip install lxml
Collecting lxml
  Using cached lxml-3.6.0.tar.gz
Installing collected packages: lxml
  Running setup.py install for lxml ... error
    Complete output from command "c:\program files\python35\python.exe" -u -c "i
mport setuptools, tokenize;__file__='C:\\Users\\forucell\\AppData\\Local\\Temp\\
pip-build-cwlxrbh_\\lxml\\setup.py';exec(compile(getattr(tokenize, 'open', open)
(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record C:
\Users\forucell\AppData\Local\Temp\pip-vx4433si-record\install-record.txt --sing
le-version-externally-managed --compile:
    Building lxml version 3.6.0.
    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.win-amd64-3.5
    creating build\lib.win-amd64-3.5\lxml
    copying src\lxml\builder.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\cssselect.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\doctestcompare.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\ElementInclude.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\pyclasslookup.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\sax.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\usedoctest.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\_elementpath.py -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\__init__.py -> build\lib.win-amd64-3.5\lxml
    creating build\lib.win-amd64-3.5\lxml\includes
    copying src\lxml\includes\__init__.py -> build\lib.win-amd64-3.5\lxml\includ
es
    creating build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\builder.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\clean.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\defs.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\diff.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\ElementSoup.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\formfill.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\html5parser.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\soupparser.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\usedoctest.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\_diffcommand.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\_html5builder.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\_setmixin.py -> build\lib.win-amd64-3.5\lxml\html
    copying src\lxml\html\__init__.py -> build\lib.win-amd64-3.5\lxml\html
    creating build\lib.win-amd64-3.5\lxml\isoschematron
    copying src\lxml\isoschematron\__init__.py -> build\lib.win-amd64-3.5\lxml\i
soschematron
    copying src\lxml\lxml.etree.h -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\lxml.etree_api.h -> build\lib.win-amd64-3.5\lxml
    copying src\lxml\includes\c14n.pxd -> build\lib.win-amd64-3.5\lxml\includes
    copying src\lxml\includes\config.pxd -> build\lib.win-amd64-3.5\lxml\include
s
    copying src\lxml\includes\dtdvalid.pxd -> build\lib.win-amd64-3.5\lxml\inclu
des
    copying src\lxml\includes\etreepublic.pxd -> build\lib.win-amd64-3.5\lxml\in
cludes
    copying src\lxml\includes\htmlparser.pxd -> build\lib.win-amd64-3.5\lxml\inc
ludes
    copying src\lxml\includes\relaxng.pxd -> build\lib.win-amd64-3.5\lxml\includ
es
    copying src\lxml\includes\schematron.pxd -> build\lib.win-amd64-3.5\lxml\inc
ludes
    copying src\lxml\includes\tree.pxd -> build\lib.win-amd64-3.5\lxml\includes
    copying src\lxml\includes\uri.pxd -> build\lib.win-amd64-3.5\lxml\includes
    copying src\lxml\includes\xinclude.pxd -> build\lib.win-amd64-3.5\lxml\inclu
des
    copying src\lxml\includes\xmlerror.pxd -> build\lib.win-amd64-3.5\lxml\inclu
des
    copying src\lxml\includes\xmlparser.pxd -> build\lib.win-amd64-3.5\lxml\incl
udes
    copying src\lxml\includes\xmlschema.pxd -> build\lib.win-amd64-3.5\lxml\incl
udes
    copying src\lxml\includes\xpath.pxd -> build\lib.win-amd64-3.5\lxml\includes

    copying src\lxml\includes\xslt.pxd -> build\lib.win-amd64-3.5\lxml\includes
    copying src\lxml\includes\etree_defs.h -> build\lib.win-amd64-3.5\lxml\inclu
des
    copying src\lxml\includes\lxml-version.h -> build\lib.win-amd64-3.5\lxml\inc
ludes
    creating build\lib.win-amd64-3.5\lxml\isoschematron\resources
    creating build\lib.win-amd64-3.5\lxml\isoschematron\resources\rng
    copying src\lxml\isoschematron\resources\rng\iso-schematron.rng -> build\lib
.win-amd64-3.5\lxml\isoschematron\resources\rng
    creating build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl
    copying src\lxml\isoschematron\resources\xsl\RNG2Schtrn.xsl -> build\lib.win
-amd64-3.5\lxml\isoschematron\resources\xsl
    copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win
-amd64-3.5\lxml\isoschematron\resources\xsl
    creating build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl\iso-schema
tron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_abstra
ct_expand.xsl -> build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl\iso-sc
hematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_i
nclude.xsl -> build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl\iso-schem
atron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schema
tron_message.xsl -> build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl\iso
-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schema
tron_skeleton_for_xslt1.xsl -> build\lib.win-amd64-3.5\lxml\isoschematron\resour
ces\xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_f
or_xslt1.xsl -> build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl\iso-sch
ematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt
 -> build\lib.win-amd64-3.5\lxml\isoschematron\resources\xsl\iso-schematron-xslt
1
    running build_ext
    building 'lxml.etree' extension
    creating build\temp.win-amd64-3.5
    creating build\temp.win-amd64-3.5\Release
    creating build\temp.win-amd64-3.5\Release\src
    creating build\temp.win-amd64-3.5\Release\src\lxml
    C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\amd64\cl.exe /c /
nologo /Ox /W3 /GL /DNDEBUG /MD -Isrc\lxml\includes "-Ic:\program files\python35
\include" "-Ic:\program files\python35\include" "-IC:\Program Files (x86)\Micros
oft Visual Studio 14.0\VC\INCLUDE" "-IC:\Program Files (x86)\Microsoft Visual St
udio 14.0\VC\ATLMFC\INCLUDE" "-IC:\Program Files (x86)\Windows Kits\10\include\1
0.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\
um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\shared" "-IC:\Program Fi
les (x86)\Windows Kits\8.1\include\\um" "-IC:\Program Files (x86)\Windows Kits\8
.1\include\\winrt" /Tcsrc\lxml\lxml.etree.c /Fobuild\temp.win-amd64-3.5\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\\amd64\\cl.exe' failed with exit status 2
    creating Users
    creating Users\forucell
    creating Users\forucell\AppData
    creating Users\forucell\AppData\Local
    creating Users\forucell\AppData\Local\Temp
    C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\amd64\cl.exe /c /
nologo /Ox /W3 /GL /DNDEBUG /MD -I/usr/include/libxml2 "-IC:\Program Files (x86)
\Microsoft Visual Studio 14.0\VC\INCLUDE" "-IC:\Program Files (x86)\Microsoft Vi
sual Studio 14.0\VC\ATLMFC\INCLUDE" "-IC:\Program Files (x86)\Windows Kits\10\in
clude\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\i
nclude\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\shared" "-IC:\Pro
gram Files (x86)\Windows Kits\8.1\include\\um" "-IC:\Program Files (x86)\Windows
 Kits\8.1\include\\winrt" /TcC:\Users\forucell\AppData\Local\Temp\xmlXPathInit2v
eo73kj.c /FoUsers\forucell\AppData\Local\Temp\xmlXPathInit2veo73kj.obj
    xmlXPathInit2veo73kj.c
    C:\Users\forucell\AppData\Local\Temp\xmlXPathInit2veo73kj.c(1): fatal error
C1083: 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\\amd64\\cl.exe' failed with exit status 2

    ----------------------------------------
Command ""c:\program files\python35\python.exe" -u -c "import setuptools, tokeni
ze;__file__='C:\\Users\\forucell\\AppData\\Local\\Temp\\pip-build-cwlxrbh_\\lxml
\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replac
e('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\forucell\AppData\
Local\Temp\pip-vx4433si-record\install-record.txt --single-version-externally-ma
naged --compile" failed with error code 1 in C:\Users\forucell\AppData\Local\Tem
p\pip-build-cwlxrbh_\lxml\

3）當我嘗試以whl格式安裝lxml時，出現以下錯誤：

Exception:
Traceback (most recent call last):
  File "C:\Program Files\Python35\lib\site-packages\pip\basecommand.py", line 21
5, in main
    status = self.run(options, args)
  File "C:\Program Files\Python35\lib\site-packages\pip\commands\install.py", li
ne 317, in run
    prefix=options.prefix_path,
  File "C:\Program Files\Python35\lib\site-packages\pip\req\req_set.py", line 74
2, in install
    **kwargs
  File "C:\Program Files\Python35\lib\site-packages\pip\req\req_install.py", lin
e 831, in install
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
  File "C:\Program Files\Python35\lib\site-packages\pip\req\req_install.py", lin
e 1032, in move_wheel_files
    isolated=self.isolated,
  File "C:\Program Files\Python35\lib\site-packages\pip\wheel.py", line 346, in
move_wheel_files
    clobber(source, lib_dir, True)
  File "C:\Program Files\Python35\lib\site-packages\pip\wheel.py", line 317, in
clobber
    ensure_dir(destdir)
  File "C:\Program Files\Python35\lib\site-packages\pip\utils\__init__.py", line
 83, in ensure_dir
    os.makedirs(path)
  File "C:\Program Files\Python35\lib\os.py", line 241, in makedirs
    mkdir(name, mode)
PermissionError: [WinError 5] Access is denied: 'C:\\Program Files\\Python35\\Li
b\\site-packages\\lxml

請幫我。 提前致謝。

Answer 1

您需要更新您的pip 。 如果版本為7.0.3，請運行命令：

py -m pip install --upgrade pip在命令提示符下py -m pip install --upgrade pip 。 再試一次

Answer 2

lxml需要C / C ++庫libxml和libxstl因此您必須先安裝它。 但是它們不是Python模塊，而是標准庫-可能是libxml.dll ， libxstl.dll.

lxml可能還需要此庫或C / C ++頭文件* .h的源代碼和C / C ++編譯器來編譯lxml

對於Windows，存在帶有預編譯模塊的非官方Windows Binary for Python擴展包 ，並且存在lxml

注意：這可能是一個重復的問題。您可以看到此stackoverflow