Hi there, I think this was reported earlier to the list, but Pyrex 0.9.3.1 still has problems with gcc 4.0. lxml has an extra patch to work around the issue: http://codespeak.net/lxml/Pyrex-0.9.3-gcc4-small.patch It would be nice if there were a Pyrex 0.9.3.2 which had this included. Regards, Martijn