Thanks Gabriel, you resumed quite well what I did discovered after my second post by playing with the garbage collector module.
> (The garbage collector will, > eventually, break the cycle and free those objects, but not very soon). I'm not very familiar with the Python garbage collector, so you may excuse my simple question, but how can it break the cycle? I guess the object will be freed at least when the program ends, but could it be before that? Is there a mechanisme in the garbage collector to detect circular references? Felix -- http://mail.python.org/mailman/listinfo/python-list
