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=/usr/local/pymol/ export PYTHONPATH=/usr/local/pymol/modules/
then type python to enter in the shell and: s...@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