Comment 38 for bug 482993

> after looking at the lxml downloads, I noticed that
> python 2.6 downloads are called fat, I assume that
> mean multi arch

I don't know about binary packages of lxml downloads.

The site-packages bundled with Inkscape 0.47 (and 0.48pre1) have separate folder hierarchies for ppc/i386.
The i386 modules for python 2.6 are not universal builds:

LeWitt:i386 suv$ file 2.6/*/*.so
2.6/lxml/etree.so: Mach-O bundle i386
2.6/lxml/objectify.so: Mach-O bundle i386

LeWitt:i386 suv$ file 2.6/*/*/*.so
2.6/numpy/core/_dotblas.so: Mach-O bundle i386
2.6/numpy/core/_sort.so: Mach-O bundle i386
2.6/numpy/core/multiarray.so: Mach-O bundle i386
2.6/numpy/core/scalarmath.so: Mach-O bundle i386
2.6/numpy/core/umath.so: Mach-O bundle i386
2.6/numpy/fft/fftpack_lite.so: Mach-O bundle i386
2.6/numpy/lib/_compiled_base.so: Mach-O bundle i386
2.6/numpy/linalg/lapack_lite.so: Mach-O bundle i386
2.6/numpy/numarray/_capi.so: Mach-O bundle i386
2.6/numpy/random/mtrand.so: Mach-O bundle i386

The modules for python 2.5 in 'i386' however are Universal builds (PPC, i386), but do not include 64bit (x86-64):

LeWitt:i386 suv$ file 2.5/*/*.so
2.5/lxml/etree.so: Mach-O universal binary with 2 architectures
2.5/lxml/etree.so (for architecture i386): Mach-O bundle i386
2.5/lxml/etree.so (for architecture ppc7400): Mach-O bundle ppc
2.5/lxml/objectify.so: Mach-O universal binary with 2 architectures
2.5/lxml/objectify.so (for architecture i386): Mach-O bundle i386
2.5/lxml/objectify.so (for architecture ppc7400): Mach-O bundle ppc
2.5/lxml/pyclasslookup.so: Mach-O universal binary with 2 architectures
2.5/lxml/pyclasslookup.so (for architecture i386): Mach-O bundle i386
2.5/lxml/pyclasslookup.so (for architecture ppc7400): Mach-O bundle ppc

(...)

> is it possible the 2.6 lxml in the build is actually the 2.5 lxml

No, they do work with MacPorts Python 2.6 (e.g. on Leopard), if DYLD_LIBRARY_PATH is set.