Should I worry about circular references in Python?

Question

Suppose I have code that maintains a parent/children structure. In such a structure I get circular references, where a child points to a parent and a parent points to a chil

Answer 1

Circular references are a normal thing to do, so I don't see a reason to be worried about them. Many tree algorithms require that each node have links to its children and its parent. They're also required to implement something like a doubly linked list.