In Python the automatic garbage collection works very well, but it is possible to defeat it with objects that create a reference to each other creating a “circular dependency” – see the ...

How Python manages memory Every Python object has a reference count, also known as a refcount. The refcount is a tally of the total number of other objects that hold a reference to a given object ...

With a Python list, you can group Python objects together in a one-dimensional row that allows objects to be accessed by position, added, removed, sorted, and subdivided. Python list basics ...