Binary package “python3-sane-dbg” in ubuntu trusty

Python Imaging Library - SANE interface (Python3 debug extension)

 The imaging-sane module is a Python interface to the SANE (Scanner
 Access is Now Easy) library, which provides access to various raster
 scanning devices such as flatbed scanners and digital cameras.
 .
 This package contains the extension built for the Python debug interpreter.