root@ks359512:/usr/local/src/duplicity/duplicity-0.6.11# python setup.py install
running install
running build
running build_py
running build_ext
building \'duplicity._librsync\' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.5 -c _librsyncmodule.c -o build/temp.linux-x86_64-2.5/_librsyncmodule.o
_librsyncmodule.c:25:20: error: Python.h: Datei oder Verzeichnis nicht gefunden
In file included from _librsyncmodule.c:26:
/usr/include/librsync.h:367: error: expected