Last time I was installing I needed to enable the developer tools on Xcode but since its updated to Xcode 5 it doesnt give me that option anymore. I solved this issue on Yosemite by both installing and linking libxml2 and libxslt through brew:. If you have solved the problem using this method but it pops up again at a later time, you might need to run this before the four lines above:. If you are having permission errors with Homebrew, especially on El Capitan, this is a helpful document.
In essence, regardless of OS X version, try running:. It sure helped me. Explanations on docs. I tried most of the solutions above, but none of them worked for me. I'm running Yosemite This has been bothering me as well for a while. I don't know the internals enough about python distutils etc, but the include path here is wrong. I made the following ugly hack to hold me over until the python lxml people can do the proper fix.
To speed up the build in test environments, e. With homebrew, libxml2 is hidden to not interfere with the system libxml2, so pip must be helped a little in order to find it. I tried all the answers on this page, none of them worked for me.
Installing lxml on Mac OSX () inside a virtualenv with pip | Louis Tiao
I'm running OS X Version Unfortunately xcode-select --install did not work for me as I already had the latest version. Re-running pip install lxml returned no errors after. After successful install from pip lxml 3. I was searching endlessly to install this as a requisite for scrapy, and tried all the options, but finally this worked for me mac osx The ' I met the same question and after days of working I resolved this problem on my OS X According to installing lxml from lxml. If you do not have MacPort, install it from MacPort.
Cannot install Lxml on Mac os x I want to install Lxml so I can then install Scrapy. When I updated my Mac today it wouldn't let me reinstall lxml, I get the following error: Does anyone know what I need to do? Irfan TahirKheli 3, 1 15 I recommend using: Aug 5 '14 at Be sure to mark the correct answer as the solution so others can use your question as guidance when they have the same problem: You should install or upgrade the commandline tool for xcode.
Try this in a terminal: I get "Can't install the software because it is not currently available from the Software Update server. Got xcode-select installed but it didn't fix my issue It's worth noting that you seem to get "Can't install the software because it is not currently available from the Software Update server. Works fine on Not sure why others need to manipulate cflags.
This solution still working in Yosemite. Thank you.
I solved this issue on Yosemite by both installing and linking libxml2 and libxslt through brew: In essence, regardless of OS X version, try running: The most useful answer. It's incredible how the xcode-select get so many votes. If you are using brew, you already did code-select or install xcode a long time ago. I found that after upgrading from Mavericks to Yosemite, I needed to run xcode-select --install again to upgrade to Yosemite's Command Line Tools.
It partially solved problems I was running into, and in any case would be harmless to run redundantly. Worked on Yosemite. This solution worked as a workaround, but I ran into similar problems with libmemcache few seconds later. Top answer fixed the problem. Everyone should consider this method only after trying the top answer first.
You may solve your problem by running this on the commandline: John Mee On MacOS-X, use the following to build the source distribution, and make sure you have a working Internet connection, as this will download libxml2 and libxslt in order to build them:.
Building from developer sources or from modified distribution sources requires Cython to translate the lxml sources into C code. The source distribution ships with pre-generated C source files, so you do not need Cython installed to build from release sources. If you have read these instructions and still cannot manage to install lxml, you can check the archives of the mailing list to see if your problem is known or otherwise send a mail to the list. If you want to use lxml together with the official libxml2 Python bindings maybe because one of your dependencies uses it , you must build lxml statically.
Otherwise, the two packages will interfere in places where the libxml2 library requires global configuration, which can have any kind of effect from disappearing functionality to crashes in either of the two. To get a static build, either pass the --static-deps option to the setup. Most MS Windows systems lack the necessarily tools to build software, starting with a C compiler already. Microsoft leaves it to users to install and configure them, which is usually not trivial and means that distributors cannot rely on these dependencies being available on a given system.
In a way, you get what you've paid for and make others pay for it.
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Due to the additional lack of package management of this platform, it is best to link the library dependencies statically if you decide to build from sources, rather than using a binary installer. For that, lxml can use the binary distribution of libxml2 and libxslt , which it downloads automatically during the static build. It needs both libxml2 and libxslt, as well as iconv and zlib, which are available from the same download site.
Further build instructions are in the source build documentation. If you are not using macports or want to use a more recent lxml release, you have to build it yourself. While the pre-installed system libraries of libxml2 and libxslt are less outdated in recent MacOS-X versions than they used to be, so lxml should work with them out of the box, it is still recommended to use a static build with the most recent library versions. Luckily, lxml's setup. Please read the MacOS-X build instructions. Where to start? Where to get it lxml is generally distributed through PyPI.
Try something like sudo port install pylxml To install a newer version or to install lxml on other systems, see below. Requirements You need Python 2. We recommend libxslt 1.