Pb installation lxml

**ffoperso** · 29/09/2016, 23h52

Hello,
je suis sous windows en python 2.7
je n'arrive pas a installer la librairie
lxml

(http://lxml.de/)

avec la commande pip install lxml
j'ai le code erreur suivant :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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pdata\local\temp\pip-1toe5z-record\install-record.txt --single-version-externall
y-managed --compile:
    Building lxml version 3.6.4.
    Building without Cython.
    ERROR: 'xslt-config' n'est pas reconnu en tant que commande interne
    ou externe, un programme ex'cutable ou un fichier de commandes.
 
    ** 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.win32-2.7
    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\includes
    copying src\lxml\includes\__init__.py -> build\lib.win32-2.7\lxml\includes
    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\_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\isosc
hematron
    copying src\lxml\lxml.etree.h -> build\lib.win32-2.7\lxml
    copying src\lxml\lxml.etree_api.h -> build\lib.win32-2.7\lxml
    copying src\lxml\includes\c14n.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\config.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\dtdvalid.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\etreepublic.pxd -> build\lib.win32-2.7\lxml\includ
es
    copying src\lxml\includes\htmlparser.pxd -> build\lib.win32-2.7\lxml\include
s
    copying src\lxml\includes\relaxng.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\schematron.pxd -> build\lib.win32-2.7\lxml\include
s
    copying src\lxml\includes\tree.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\uri.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xinclude.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xmlerror.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xmlparser.pxd -> build\lib.win32-2.7\lxml\includes
 
    copying src\lxml\includes\xmlschema.pxd -> build\lib.win32-2.7\lxml\includes
 
    copying src\lxml\includes\xpath.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xslt.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\etree_defs.h -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\lxml-version.h -> build\lib.win32-2.7\lxml\include
s
    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.win
32-2.7\lxml\isoschematron\resources\xsl
    copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win
32-2.7\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_abstra
ct_expand.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schema
tron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_i
nclude.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematro
n-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schema
tron_message.xsl -> build\lib.win32-2.7\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.win32-2.7\lxml\isoschematron\resources\
xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_f
or_xslt1.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schemat
ron-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
    creating build\temp.win32-2.7
    creating build\temp.win32-2.7\Release
    creating build\temp.win32-2.7\Release\src
    creating build\temp.win32-2.7\Release\src\lxml
    C:\Users\frederic\AppData\Local\Programs\Common\Microsoft\Visual C++ for Pyt
hon\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Isrc\lxml\includes -
Ic:\python27\include -Ic:\python27\PC /Tcsrc\lxml\lxml.etree.c /Fobuild\temp.win
32-2.7\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
file: 'libxml/xmlversion.h': No such file or directory
    Compile failed: command 'C:\\Users\\frederic\\AppData\\Local\\Programs\\Comm
on\\Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit sta
tus 2
    creating users
    creating users\frederic
    creating users\frederic\appdata
    creating users\frederic\appdata\local
    creating users\frederic\appdata\local\temp
    C:\Users\frederic\AppData\Local\Programs\Common\Microsoft\Visual C++ for Pyt
hon\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -I/usr/include/libxml
2 /Tcc:\users\frederic\appdata\local\temp\xmlXPathInitaop5yv.c /Fousers\frederic
\appdata\local\temp\xmlXPathInitaop5yv.obj
    xmlXPathInitaop5yv.c
    c:\users\frederic\appdata\local\temp\xmlXPathInitaop5yv.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:\\Users\\frederic\\AppData\\Local\\Programs\\Common\\Micro
soft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit status 2
 
    ----------------------------------------
Command "c:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\
\users\\frederic\\appdata\\local\\temp\\pip-build-hd8ga4\\lxml\\setup.py';exec(c
ompile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), _
_file__, 'exec'))" install --record c:\users\frederic\appdata\local\temp\pip-1to
e5z-record\install-record.txt --single-version-externally-managed --compile" fai
led with error code 1 in c:\users\frederic\appdata\local\temp\pip-build-hd8ga4\l
xml\
 
C:\Users\frederic>pip install lxml
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 c:\python27\python.exe -u -c "import setuptools
, tokenize;__file__='c:\\users\\frederic\\appdata\\local\\temp\\pip-build-xz2vd1
\\lxml\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().
replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\frederic\ap
pdata\local\temp\pip-wl3xrm-record\install-record.txt --single-version-externall
y-managed --compile:
    Building lxml version 3.6.4.
    Building without Cython.
    ERROR: 'xslt-config' n'est pas reconnu en tant que commande interne
    ou externe, un programme ex'cutable ou un fichier de commandes.
 
    ** 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.win32-2.7
    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\includes
    copying src\lxml\includes\__init__.py -> build\lib.win32-2.7\lxml\includes
    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\_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\isosc
hematron
    copying src\lxml\lxml.etree.h -> build\lib.win32-2.7\lxml
    copying src\lxml\lxml.etree_api.h -> build\lib.win32-2.7\lxml
    copying src\lxml\includes\c14n.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\config.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\dtdvalid.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\etreepublic.pxd -> build\lib.win32-2.7\lxml\includ
es
    copying src\lxml\includes\htmlparser.pxd -> build\lib.win32-2.7\lxml\include
s
    copying src\lxml\includes\relaxng.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\schematron.pxd -> build\lib.win32-2.7\lxml\include
s
    copying src\lxml\includes\tree.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\uri.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xinclude.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xmlerror.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xmlparser.pxd -> build\lib.win32-2.7\lxml\includes
 
    copying src\lxml\includes\xmlschema.pxd -> build\lib.win32-2.7\lxml\includes
 
    copying src\lxml\includes\xpath.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\xslt.pxd -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\etree_defs.h -> build\lib.win32-2.7\lxml\includes
    copying src\lxml\includes\lxml-version.h -> build\lib.win32-2.7\lxml\include
s
    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.win
32-2.7\lxml\isoschematron\resources\xsl
    copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win
32-2.7\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_abstra
ct_expand.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schema
tron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_i
nclude.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schematro
n-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schema
tron_message.xsl -> build\lib.win32-2.7\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.win32-2.7\lxml\isoschematron\resources\
xsl\iso-schematron-xslt1
    copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_f
or_xslt1.xsl -> build\lib.win32-2.7\lxml\isoschematron\resources\xsl\iso-schemat
ron-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
    creating build\temp.win32-2.7
    creating build\temp.win32-2.7\Release
    creating build\temp.win32-2.7\Release\src
    creating build\temp.win32-2.7\Release\src\lxml
    C:\Users\frederic\AppData\Local\Programs\Common\Microsoft\Visual C++ for Pyt
hon\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Isrc\lxml\includes -
Ic:\python27\include -Ic:\python27\PC /Tcsrc\lxml\lxml.etree.c /Fobuild\temp.win
32-2.7\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
file: 'libxml/xmlversion.h': No such file or directory
    Compile failed: command 'C:\\Users\\frederic\\AppData\\Local\\Programs\\Comm
on\\Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit sta
tus 2
    creating users
    creating users\frederic
    creating users\frederic\appdata
    creating users\frederic\appdata\local
    creating users\frederic\appdata\local\temp
    C:\Users\frederic\AppData\Local\Programs\Common\Microsoft\Visual C++ for Pyt
hon\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -I/usr/include/libxml
2 /Tcc:\users\frederic\appdata\local\temp\xmlXPathInit_gukys.c /Fousers\frederic
\appdata\local\temp\xmlXPathInit_gukys.obj
    xmlXPathInit_gukys.c
    c:\users\frederic\appdata\local\temp\xmlXPathInit_gukys.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:\\Users\\frederic\\AppData\\Local\\Programs\\Common\\Micro
soft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit status 2
 
    ----------------------------------------
Command "c:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\
\users\\frederic\\appdata\\local\\temp\\pip-build-xz2vd1\\lxml\\setup.py';exec(c
ompile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), _
_file__, 'exec'))" install --record c:\users\frederic\appdata\local\temp\pip-wl3
xrm-record\install-record.txt --single-version-externally-managed --compile" fai
led with error code 1 in c:\users\frederic\appdata\local\temp\pip-build-xz2vd1\l
xml\
 
C:\Users\frederic>

C'est pour le newbie que je suis un pb mais ou ?
Merci de votre aide

**wiztricks** · 30/09/2016, 08h40

Salut,

Il suffit de se rappeler de ce "warning":

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

    ** make sure the development packages of libxml2 and libxslt are installed **

lorsque vous voyez:

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

1
2
    src\lxml\includes\etree_defs.h(14) : fatal error C1083: Cannot open include
file: 'libxml/xmlversion.h': No such file or directory

Comme vous avez lu le document qui explique comment compiler lxml depuis les sources, et qui raconte:

If you get errors about missing header files (e.g. Python.h or libxml/xmlversion.h) then you need to make sure the development packages of Python, libxml2 and libxslt are properly installed.

vous saviez déjà avoir oublié quelque chose..

Avant de vous lancer dans la compilation depuis les sources, vous avez aussi lu dans le document qui explique comment l'installer sur Windows:

For MS Windows, recent lxml releases feature community donated binary distributions, although you might still want to take a look at the related FAQ entry. If you fail to build lxml on your MS Windows system from the signed and tested sources that we release, consider using the binary builds from PyPI or the unofficial Windows binaries that Christoph Gohlke generously provides.

i.e. la possibilité de l'installer à partir de binaires déjà compilés pour vous.

Ceci dit, vous avez déjà une bibliothèque xml inclue en standard: xml.etree.ElementTree et vous n'avez besoin de lxml que pour des fonctionnalités plutôt exotiques pour le débutant.

- W

**IPreferCSharp** · 30/09/2016, 14h54

Salut,

Je suis d'accord avec wiztricks, mais si tu tiens tous de même à utiliser lxml, passe plutôt par un .whl, en général ça résout pas mal de problème
Disponible ici : http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml

Code :

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pip install some-package.whl

**wiztricks** · 30/09/2016, 16h05

Envoyé par IPreferCSharp

Je suis d'accord avec wiztricks, mais si tu tiens tous de même à utiliser lxml, passe plutôt par un .whl, en général ça résout pas mal de problème
Disponible ici : http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml

Un wheel n'est qu'autre qu'un format qui permet de packager les binaires d'une bibliothèque pour les rendre comestibles par la commande/utilitaire "pip".
La documentation de lxml suggère déjà d'aller récupérer ces binaires chez Gohlke.... qui, depuis quelques temps déjà, ne produit de binaires que sous ce format.
Pour Python2, il faudra quand même au préalable mettre à jour pip, installer wheel,...

- W

Pb installation lxml

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