Hi, weave module is now moved to scipy_core. This simplifies building scipy/chaco modules that need weave (that might not be installed when first checking out scipy/chaco modules). So, when updating scipy or chaco_all or any other CVS module that contained weave then you'll probably see the following message: cvs server: cannot open directory /home/cvsroot/world/scipy/Lib/weave: \ No such file or directory In that case you should remove your local copy of weave (or if you have made changes to local weave then make a backup) and re-run 'cvs update' or 'cvs co weave'. Regards, Pearu