import cStringIO, traceback
def process_all_files(all_filenames,
                      fatal_exceptions=(KeyboardInterrupt, MemoryError)
                     ):
    bad_filenames = {  }
    for one_filename in all_filenames:
        try:
            process_one_file(one_filename):
        except fatal_exceptions:
            raise
        except Exception:
            f = cStringIO.StringIO( )
            traceback.print_exc(file=f)
            bad_filenames[one_filename] = f.getvalue( )
    return bad_filenames