[Distutils] Why is zc.buildout picking the wrong platform for binary eggs?
optilude+lists at gmail.com
Sat Jun 27 15:06:50 CEST 2009
As some of you may know, using lxml on OSX is a big pain because of an
incompatible system version of libxml2. The solution is to ship binary
eggs, which we already do for Windows.
Now, as a first test, Stefan has uploaded this egg:
Now, I'm on OSX 10.5, and I've requested this exact version.
In a virtualenv, this works. It downloads the given binary egg.
In a buildout, it's preferring to download and build the egg itself, and
it calls it lxml-2.2.1-py2.4-macosx-10.3-i386.egg. That's weird, because
this machine has never had OSX 10.3 on it. :(
My Python 2.4.6 is installed via darwinports.
Now, I can probably work around this, but we're trying to ensure that
people have a sane lxml egg that will install cleanly on a number of
platforms. It's therefore pretty important that the average user doesn't
So, I'd like to try and figure out what's going on. How does buildout
decide which egg to look for? Why is easy_install in a virtualenv
behaving differently to my buildout?
Author of `Professional Plone Development`, a book for developers who
want to work with Plone. See http://martinaspeli.net/plone-book
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