Hi Numpy users! I maintain the boundary value problem solver package scikits.bvp_solver<http://pypi.python.org/pypi/scikits.bvp_solver>. It's had problems with f2py for a while, and I am not sure where they are coming from. I made this stackoverflow post<http://stackoverflow.com/questions/7707414/problems-compiling-with-changes-to-f2py>some time ago, but I didn't get any solutions. Here are the details: I am trying to update my package scikits.bvp_solver (source here<https://github.com/jsalvatier/scikits.bvp_solver/>) and I have run into some problems with f2py generated files. The files 'bvp_solverf-f2pywrappers2.f90' and 'bvp_solverfmodule.c' which were generated in 2009 allow the package to be built in place with "python setup.py build_ext --inplace" but if I delete them and try to rebuild I get the error scikits/bvp_solver/lib/bvp_solverf-f2pywrappers2.f90:218.48: use guess_3_wrap__user__routines 1 Fatal Error: Can't open module file 'guess_3_wrap__user__routines.mod' for reading at (1): No such file or directory scikits/bvp_solver/lib/bvp_solverf-f2pywrappers2.f90:11.19: The file bvp_interface.pyf specifies a python module guess_3_wrap__user__routines, but I do not see this show up in the f2py generated modules. The part the adds this use statement does not appear in the old version of the file. I am having difficulty figuring out how to fix this issue. Can anyone offer advice? What are the major changes to f2py in the last two years? I appreciate all clues on this issue. Thank you in advance, John