[f2py] AttributeError: 'module' object has no attribute 'pack'

Dear List,

While trying to use f2py

f2py -c ranlux.F

I get..
--------------
Traceback (most recent call last):
  File "/usr/bin/f2py", line 24, in <module>
    main()
  File "/usr/lib/python2.6/site-packages/numpy/f2py/f2py2e.py", line 557, in 
main
    run_compile()
  File "/usr/lib/python2.6/site-packages/numpy/f2py/f2py2e.py", line 474, in 
run_compile
    from numpy.distutils.command.build_src import get_f2py_modulename
  File "/usr/lib/python2.6/site-packages/numpy/distutils/__init__.py", line 6, 
in <module>
    import ccompiler
  File "/usr/lib/python2.6/site-packages/numpy/distutils/ccompiler.py", line 
11, in <module>
    from numpy.distutils import log
  File "/usr/lib/python2.6/site-packages/numpy/distutils/log.py", line 7, in 
<module>
    from misc_util import red_text, default_text, cyan_text, green_text, 
is_sequence, is_string
  File "/usr/lib/python2.6/site-packages/numpy/distutils/misc_util.py", line 
9, in <module>
    import subprocess
  File "/usr/lib/python2.6/subprocess.py", line 404, in <module>
    import pickle
  File "/usr/lib/python2.6/pickle.py", line 171, in <module>
    class Pickler:
  File "/usr/lib/python2.6/pickle.py", line 250, in Pickler
    def put(self, i, pack=struct.pack):
AttributeError: 'module' object has no attribute 'pack'
-------------

I have had sometimes similar problems with the "subprocess" module..
How can I fix this?  I am using opensuse 11.2.

Cheers,

S.

--------------
"Jos konsultti päästetään vapaasti touhuamaan ja ohjaamaan organisaatiota,
voi edessä olla uppoaminen suunnitelmien suohon, eksyminen hankehelvettiin 
ja dokumenttiviidakkoon."
               (Mielipideosasto, Helsingin Sanomat 14.5.2009)