Hi I'm using F2PY with the intel fortran compiler under Ubunty Breezy (05.10) AMD64 to wrap some F90 code. If I use the old scipy (package version 0.3.2-2ubuntu1) with: F2PY Version:2.46.243_2020 scipy.distutils Version: 0.3.2 the following test command works as expected: $ f2py --fcompiler=intel -m testmod -c test_data.f90 test_prog.f90 Before I install new scipy, I removed all the f2py files , since it is now included with scipy. I also removed the ubuntu scipy package. After installing numpy-0.9.6 and scipy-0.4.8, trying to generate the wrappers results in the following output: $ f2py --fcompiler=intel -m testmod -c test_data.f90 test_prog.f90 running build running config_fc running build_src building extension "testmod" sources f2py options: [] f2py:> /tmp/tmp_cZX2X/src/testmodmodule.c creating /tmp/tmp_cZX2X creating /tmp/tmp_cZX2X/src Reading fortran codes... Reading file 'test_data.f90' (format:free) Reading file 'test_prog.f90' (format:free) Post-processing... Block: testmod Block: data Block: prog Block: init_data Block: process_data Post-processing (stage 2)... Block: testmod Block: unknown_interface Block: data Block: prog Block: init_data Block: process_data Building modules... Building module "testmod"... Constructing F90 module support for "data"... Variables: test_arr Constructing F90 module support for "prog"... Constructing wrapper function "prog.init_data"... init_data() Constructing wrapper function "prog.process_data"... process_data(factors,[n]) Wrote C/API module "testmod" to file "/tmp/tmp_cZX2X/src/testmodmodule.c" Fortran 90 wrappers are saved to "/tmp/tmp_cZX2X/src/testmod-f2pywrappers2.f90" adding '/tmp/tmp_cZX2X/src/fortranobject.c' to sources. adding '/tmp/tmp_cZX2X/src' to include_dirs. copying /usr/lib/python2.4/site-packages/numpy/f2py/src/fortranobject.c -> /tmp/tmp_cZX2X/src copying /usr/lib/python2.4/site-packages/numpy/f2py/src/fortranobject.h -> /tmp/tmp_cZX2X/src adding '/tmp/tmp_cZX2X/src/testmod-f2pywrappers2.f90' to sources. running build_ext customize UnixCCompiler customize UnixCCompiler using build_ext Could not locate executable efort Could not locate executable efc warning: build_ext: fcompiler=intel is not available. building 'testmod' extension compiling C sources gcc options: '-pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC' creating /tmp/tmp_cZX2X/tmp creating /tmp/tmp_cZX2X/tmp/tmp_cZX2X creating /tmp/tmp_cZX2X/tmp/tmp_cZX2X/src compile options: '-I/tmp/tmp_cZX2X/src -I/usr/lib/python2.4/site-packages/numpy/core/include -I/usr/include/python2.4 -c' gcc: /tmp/tmp_cZX2X/src/fortranobject.c gcc: /tmp/tmp_cZX2X/src/testmodmodule.c Traceback (most recent call last): File "/usr/bin/f2py", line 6, in ? f2py.main() File "/usr/lib/python2.4/site-packages/numpy/f2py/f2py2e.py", line 546, in main run_compile() File "/usr/lib/python2.4/site-packages/numpy/f2py/f2py2e.py", line 533, in run_compile setup(ext_modules = [ext]) File "/usr/lib/python2.4/site-packages/numpy/distutils/core.py", line 85, in setup return old_setup(**new_attr) File "/usr/lib/python2.4/distutils/core.py", line 149, in setup dist.run_commands() File "/usr/lib/python2.4/distutils/dist.py", line 946, in run_commands self.run_command(cmd) File "/usr/lib/python2.4/distutils/dist.py", line 966, in run_command cmd_obj.run() File "/usr/lib/python2.4/distutils/command/build.py", line 112, in run self.run_command(cmd_name) File "/usr/lib/python2.4/distutils/cmd.py", line 333, in run_command self.distribution.run_command(command) File "/usr/lib/python2.4/distutils/dist.py", line 966, in run_command cmd_obj.run() File "/usr/lib/python2.4/site-packages/numpy/distutils/command/build_ext.py", line 109, in run self.build_extensions() File "/usr/lib/python2.4/distutils/command/build_ext.py", line 405, in build_extensions self.build_extension(ext) File "/usr/lib/python2.4/site-packages/numpy/distutils/command/build_ext.py", line 220, in build_extension if self.fcompiler.module_dir_switch is None: AttributeError: 'NoneType' object has no attribute 'module_dir_switch' Is there something wrong with my setup, or what is causing this behaviour? Thanks Neilen -- you know its kind of tragic we live in the new world but we've lost the magic -- Battery 9 (www.battery9.co.za)