Cem Karan wrote:
I tend to structure my code as a tree or DAG of objects. The owner refers to the owned object, but the owned object has no reference to its owner. With callbacks, you get cycles, where the owned owns the owner.
This is why I suggested registering a listener object plus a method name instead of a callback. It avoids that reference cycle, because there is no long-lived callback object keeping a reference to the listener. -- Greg -- https://mail.python.org/mailman/listinfo/python-list
