exiv2 and Python
I discovered today pyexiv2, which is a Python interface to the infamous Exiv2, a GPL library to read and write Exif and IPTC/IIM metadata from JPEG and various camera RAW file. Too bad I can't reuse the exiv2 code in libopenraw as it is GPL and not LGPL.
pyexiv2 is actually an exemple on how easy it is to write Python module in C++ using Boost.Python
 The decision to use LGPL for libopenraw is in complete relation to the policies from both Gnome and KDE when it come to libraries, and nothing else.