Hi folks, My bootstrap build of cctbx/DIALS on Ubuntu 16.04.2 LTS produces a base Python that does not have bz2 support. This is despite the fact that the package "libbz2-dev is already the newest version (1.0.6-8)." Looking in Python_install_log I see Python build finished, but the necessary bits to build these modules were not found: _bsddb _curses _curses_panel _sqlite3 _tkinter bsddb185 bz2 dbm dl gdbm imageop readline sunaudiodev Has anyone got any ideas? Anyone done a boostrap build on Ubuntu where bz2 can be imported in Python? Also, what's the procedure to rebuild from base, recovering all the currently configured modules? My guess is that something like this would do it, but is there a better way? export MYMODULES=$(libtbx.list_modules | tr '\n' ' ') rm -rf base_tmp/ base/ build/ python bootstrap.py --builder=dials base python bootstrap.py --builder=dials build cd build source setpaths.sh libtbx.configure $MYMODULES make Cheers -- David