USB Scale
From charlesreid1
This page documents my adventure in communicating with a USB scale using Python.
Don't use OS X to interface with the scale; you'll have to deal with a bunch of Apple bullshit: not being able to interface with hardware from python, which can only be solved by modifying your kernel, which requires an Apple developer id and an XCode project.
Forget it.
Raspberry Pi
When I failed to get the scale working with Mac OS X, I was able to fall back on Raspberry Pi as an alternative.
See the RaspberryPi page for notes on getting the Raspberry Pi up and running.
See the USB Scale/RaspberryPi page for notes on getting the USB scale up and running with Raspberry Pi.
OS X
Instructions for getting stuck up in a tree on OS X: USB Scale/OS X