~ $ sudo apt-get install python2.5-dev Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libmimedir-gnome0 libgpepimc0 libeventdb2 madplay libsoundgen0 mediabox-compat-theme gpe-calendar libtododb0 libhandoff0 libxsettings-client0 libgpevtype1 Use 'apt-get autoremove' to remove them. The following extra packages will be installed: python2.5-distutils The following NEW packages will be installed: python2.5-dev python2.5-distutils 0 upgraded, 2 newly installed, 0 to remove and 7 not upgraded. Need to get 4212kB of archives. After unpacking 17.0MB of additional disk space will be used. Do you want to continue [Y/n]? Y WARNING: The following packages cannot be authenticated! python2.5-distutils python2.5-dev Install these packages without verification [y/N]? y Get:1 http://repository.maemo.org diablo/free python2.5-distutils 2.5.2-1osso4 [570kB] Get:2 http://repository.maemo.org diablo/free python2.5-dev 2.5.2-1osso4 [3643kB] Fetched 4212kB in 31s (134kB/s) Selecting previously deselected package python2.5-distutils. (Reading database ... 45578 files and directories currently installed.) Unpacking python2.5-distutils (from .../python2.5-distutils_2.5.2-1osso4_armel.deb) ... Selecting previously deselected package python2.5-dev. Unpacking python2.5-dev (from .../python2.5-dev_2.5.2-1osso4_armel.deb) ... Setting up python2.5-distutils (2.5.2-1osso4) ... Setting up python2.5-dev (2.5.2-1osso4) ... ~ $ python Python 2.5.2 (r252:60911, Sep 8 2008, 19:47:42) [GCC 3.4.4 (release) (CodeSourcery ARM 2005q3-2)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from sympy import * >>>