Reading information from Dymo USB scale.
sudo apt-get install python libusb-1.0-0
# Create text file /etc/udev/rules.d/99-garmin.rules with contents:
# SUBSYSTEM=="usb", ATTR{idVendor}=="0922", ATTR{idProduct}=="8003", MODE="666"
pip install python-dymo-scale
from dymo import scale
usb = scale.USB()
print usb.get_weight_grams()