Hello, I am getting started with Python and I got stuck in installing lxml So I typed pip install lxml and I get the below error. Can you tell me what do I have to install and where to find it? Some library? libxml2 or another? Some Microsoft C++ 14 Component? I tried these things without success. Do you know an exact solution? Maybe I need to install something else with pip that consists dependant? Do I need to build lxml, but how to build it? Thanks pip install lxml Collecting lxml Using cached lxml-4.9.1.tar.gz (3.4 MB) Preparing metadata (setup.py) ... done Building wheels for collected packages: lxml Building wheel for lxml (setup.py) ... error error: subprocess-exited-with-error × python setup.py bdist_wheel did not run successfully. │ exit code: 1 ╰─> [94 lines of output] Building lxml version 4.9.1. Building without Cython. Building against pre-built libxml2 andl libxslt libraries running bdist_wheel running build running build_py creating build creating build\lib.win-amd64-cpython-311 creating build\lib.win-amd64-cpython-311\lxml copying src\lxml\builder.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\cssselect.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\doctestcompare.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\ElementInclude.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\pyclasslookup.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\sax.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\usedoctest.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\_elementpath.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\__init__.py -> build\lib.win-amd64-cpython-311\lxml creating build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\__init__.py -> build\lib.win-amd64-cpython-311\lxml\includes creating build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\builder.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\clean.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\defs.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\diff.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\ElementSoup.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\formfill.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\html5parser.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\soupparser.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\usedoctest.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\_diffcommand.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\_html5builder.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\_setmixin.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\__init__.py -> build\lib.win-amd64-cpython-311\lxml\html creating build\lib.win-amd64-cpython-311\lxml\isoschematron copying src\lxml\isoschematron\__init__.py -> build\lib.win-amd64-cpython-311\lxml\isoschematron copying src\lxml\etree.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\etree_api.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\lxml.etree.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\lxml.etree_api.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\includes\c14n.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\config.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\dtdvalid.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\etreepublic.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\htmlparser.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\relaxng.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\schematron.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\tree.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\uri.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xinclude.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xmlerror.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xmlparser.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xmlschema.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xpath.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xslt.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\__init__.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\etree_defs.h -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\lxml-version.h -> build\lib.win-amd64-cpython-311\lxml\includes creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\rng copying src\lxml\isoschematron\resources\rng\iso-schematron.rng -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\rng creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl copying src\lxml\isoschematron\resources\xsl\RNG2Schtrn.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_abstract_expand.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_include.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_message.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_skeleton_for_xslt1.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_for_xslt1.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 running build_ext building 'lxml.etree' extension creating build\temp.win-amd64-cpython-311 creating build\temp.win-amd64-cpython-311\Release creating build\temp.win-amd64-cpython-311\Release\src creating build\temp.win-amd64-cpython-311\Release\src\lxml "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD -DCYTHON_CLINE_IN_TRACEBACK=0 -Isrc -Isrc\lxml\includes -IC:\Users\Universum\AppData\Local\Programs\Python\Python311\include -IC:\Users\Universum\AppData\Local\Programs\Python\Python311\Include "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" /Tcsrc\lxml\etree.c /Fobuild\temp.win-amd64-cpython-311\Release\src\lxml\etree.obj -w cl : Command line warning D9025 : overriding '/W3' with '/w' etree.c C:\Users\Universum\AppData\Local\Temp\pip-install-0wyuaomy\lxml_c6a04d4318ec40639f1b22fcf30829c0\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:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.34.31933\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2 creating Users creating Users\UNIVER~1 creating Users\UNIVER~1\AppData creating Users\UNIVER~1\AppData\Local creating Users\UNIVER~1\AppData\Local\Temp "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD -I/usr/include/libxml2 "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" /TcC:\Users\UNIVER~1\AppData\Local\Temp\xmlXPathInitkexz0g8y.c /FoUsers\UNIVER~1\AppData\Local\Temp\xmlXPathInitkexz0g8y.obj xmlXPathInitkexz0g8y.c C:\Users\UNIVER~1\AppData\Local\Temp\xmlXPathInitkexz0g8y.c(1): fatal error C1083: Cannot open include file: 'libxml/xpath.h': No such file or directory error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.34.31933\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2 ********************************************************************************* Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed? ********************************************************************************* [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for lxml Running setup.py clean for lxml Failed to build lxml Installing collected packages: lxml Running setup.py install for lxml ... error error: subprocess-exited-with-error × Running setup.py install for lxml did not run successfully. │ exit code: 1 ╰─> [91 lines of output] Building lxml version 4.9.1. Building without Cython. Building against pre-built libxml2 andl libxslt libraries running install C:\Users\Universum\AppData\Local\Programs\Python\Python311\Lib\site-packages\setuptools\command\install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools. warnings.warn( running build running build_py creating build creating build\lib.win-amd64-cpython-311 creating build\lib.win-amd64-cpython-311\lxml copying src\lxml\builder.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\cssselect.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\doctestcompare.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\ElementInclude.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\pyclasslookup.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\sax.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\usedoctest.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\_elementpath.py -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\__init__.py -> build\lib.win-amd64-cpython-311\lxml creating build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\__init__.py -> build\lib.win-amd64-cpython-311\lxml\includes creating build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\builder.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\clean.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\defs.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\diff.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\ElementSoup.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\formfill.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\html5parser.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\soupparser.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\usedoctest.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\_diffcommand.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\_html5builder.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\_setmixin.py -> build\lib.win-amd64-cpython-311\lxml\html copying src\lxml\html\__init__.py -> build\lib.win-amd64-cpython-311\lxml\html creating build\lib.win-amd64-cpython-311\lxml\isoschematron copying src\lxml\isoschematron\__init__.py -> build\lib.win-amd64-cpython-311\lxml\isoschematron copying src\lxml\etree.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\etree_api.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\lxml.etree.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\lxml.etree_api.h -> build\lib.win-amd64-cpython-311\lxml copying src\lxml\includes\c14n.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\config.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\dtdvalid.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\etreepublic.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\htmlparser.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\relaxng.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\schematron.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\tree.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\uri.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xinclude.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xmlerror.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xmlparser.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xmlschema.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xpath.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\xslt.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\__init__.pxd -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\etree_defs.h -> build\lib.win-amd64-cpython-311\lxml\includes copying src\lxml\includes\lxml-version.h -> build\lib.win-amd64-cpython-311\lxml\includes creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\rng copying src\lxml\isoschematron\resources\rng\iso-schematron.rng -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\rng creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl copying src\lxml\isoschematron\resources\xsl\RNG2Schtrn.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl copying src\lxml\isoschematron\resources\xsl\XSD2Schtrn.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl creating build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_abstract_expand.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_dsdl_include.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_message.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_schematron_skeleton_for_xslt1.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\iso_svrl_for_xslt1.xsl -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 copying src\lxml\isoschematron\resources\xsl\iso-schematron-xslt1\readme.txt -> build\lib.win-amd64-cpython-311\lxml\isoschematron\resources\xsl\iso-schematron-xslt1 running build_ext building 'lxml.etree' extension creating build\temp.win-amd64-cpython-311 creating build\temp.win-amd64-cpython-311\Release creating build\temp.win-amd64-cpython-311\Release\src creating build\temp.win-amd64-cpython-311\Release\src\lxml "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD -DCYTHON_CLINE_IN_TRACEBACK=0 -Isrc -Isrc\lxml\includes -IC:\Users\Universum\AppData\Local\Programs\Python\Python311\include -IC:\Users\Universum\AppData\Local\Programs\Python\Python311\Include "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" /Tcsrc\lxml\etree.c /Fobuild\temp.win-amd64-cpython-311\Release\src\lxml\etree.obj -w cl : Command line warning D9025 : overriding '/W3' with '/w' etree.c C:\Users\Universum\AppData\Local\Temp\pip-install-0wyuaomy\lxml_c6a04d4318ec40639f1b22fcf30829c0\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:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.34.31933\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2 "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD -I/usr/include/libxml2 "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.34.31933\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\um" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\shared" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\winrt" "-IC:\Program Files (x86)\Windows Kits\10\\include\10.0.22621.0\\cppwinrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" /TcC:\Users\UNIVER~1\AppData\Local\Temp\xmlXPathInitnfadutnq.c /FoUsers\UNIVER~1\AppData\Local\Temp\xmlXPathInitnfadutnq.obj xmlXPathInitnfadutnq.c C:\Users\UNIVER~1\AppData\Local\Temp\xmlXPathInitnfadutnq.c(1): fatal error C1083: Cannot open include file: 'libxml/xpath.h': No such file or directory error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.34.31933\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2 ********************************************************************************* Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed? ********************************************************************************* [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. error: legacy-install-failure × Encountered error while trying to install package. ╰─> lxml note: This is an issue with the package mentioned above, not pip. hint: See above for output from the failure.