Python noob, por favor tengan paciencia conmigo. Usé el instalador de Python para v3.5.1 de www.python.org. Mi intención era usar Scrapy para ejecutar algunos scripts.

pip install scrapy falló, al igual que easy_install scrapy y otros. Rastreé el error hasta una instalación defectuosa de lxml. Aquí está el registro de errores. Incluso he intentado easy_installing libxml2, no estoy seguro de cómo proceder.

Building lxml version 3.5.0.
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
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:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\cl.exe' failed with exit status 2
xmlXPathInitck3f6zpk.c
C:\Users\Rohan\AppData\Local\Temp\easy_install-47utdost\lxml-3.5.0\temp\xmlXPathInitck3f6zpk.c(1): fatal error C1083: Cannot open include file: 'libxml/xpath.h': No such file or directory
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Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?
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error: Setup script exited with error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\cl.exe' failed with exit status 2