[PyMOL] still unresolved import pymol...

[Andrea S. <and...@gm...>]

After any answer,
I have been looking on this list and googling around (sorry if I
didn't before...)
there is:
# set path in order to use pymol modules
export PYMOL_PATH=3D/usr/local/pymol/
export PYTHONPATH=3D/usr/local/pymol/modules/

then type python to enter in the shell and:
spit@darkstar:~> python
Python 2.3.3 (#1, Feb  5 2005, 16:22:10)
[GCC 3.3.3 (SuSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pymol
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/usr/local/pymol/modules/pymol/__init__.py", line 306, in ?
    import _cmd
ImportError: No module named _cmd
>>>
I found already that someone got the same error but none helps him, so
I tought that this is a pymol bug, isn't ?

thanks again for any help

regards

andrea