He there! Has someone graph-tool running from within macports? I just tried the git version and found there are some serious issues here: 1. graph-tool installs into a wrong directory its libraries, i.e. /opt/local/lib/python2.7/site-packages, but libs for macports python should go into /opt/local/Library/Frameworks/... https://trac.macports.org/wiki/Python has some info on it, i.e. there are some scripts which one should use to install things, when I got it right in order to comply to the conventions of macports 2. dl.so is not present in macports python. I suppose one ought to use a different loading mechnism of the modules. ctypes/macholib seems to contain files which one is supposed to use instead. I guess, when these issues are solved, in particular the second, then graph-tool will be much easier to install for all the mac users here. Cheers, -- Sebastian Weber Group of Cell Communication and Control Freiburg Institute for Advanced Studies - FRIAS School of Life Sciences - LIFENET Albert-Ludwigs-Universität Freiburg Albertstr. 19 79104 Freiburg T.: +49-761-203-97237 Fax:+49-761-203-97334