Thank you for your quick help. I installed the SDK and could run it, also Yephyr works. I made the hello example in http://wiki.maemo.org/Packaging and it works. But now I do not know how I have to continue to build a c library for python instead a stand alone application. I tried to install (compile) Shedskin, but it fails as I have not enough rights. even when I do it as fakreroot, it tells me that I have not enough rights: [CODE] [sbox-FREMANTLE_X86: ~/MyDocs/shedskin-0.6] > fakeroot sh-2.05b# sh-2.05b# cd MyDocs/shedskin-0.6/ sh-2.05b# python setup.py install /scratchbox/tools/lib/python2.3/distutils/dist.py:227: UserWarning: Unknown distribution option: 'package_data' warnings.warn(msg) running install running build running build_py running build_scripts running install_lib creating /scratchbox/tools/lib/python2.3/site-packages/shedskin error: could not create '/scratchbox/tools/lib/python2.3/site-packages/shedskin': Permission denied sh-2.05b# whoami root [/CODE I guess there is also a (better) way than using shedskin, but I am confused with all the information I find in the internet.