Diez, I did look into gc, specifically gc.get_referrers(), but it seemed to give me something that I cant decipher.
I added the following line. print "referrers ",gc.get_referrers(x0) This is what I got. referrers [{'__builtins__': <module '__builtin__' (built-in)>, '__file__': './tst1.py', 'pdb': <module 'pdb' from '/home/raghavan/Python-2.4/my_install/lib/python2.4/pdb.pyc'>, 'sys': <module 'sys' (built-in)>, 'y': 24012, 'gc': <module 'gc' (built-in)>, 'myfuncs': <module 'myfuncs' from '/home/Raghavan/tst/myfuncs.dll'>, '__name__': '__main__', 'x0': 24012, 'z': 24012, 'os': <module 'os' from '/home/raghavan/Python-2.4/my_install/lib/python2.4/os.pyc'>, '__doc__': None, 'types': <module 'types' from '/home/raghavan/Python-2.4/my_install/lib/python2.4/types.pyc'>}, (None, '/home/Raghavan/tst', 'my pid is ', 24012, 'ref count ', 'referrers ')] Also the len of this is 2, while I got refcount=5. So I dont know whether this can be used in the same way. Thanks. Bye, Raghavan V -- http://mail.python.org/mailman/listinfo/python-list