How can I avoid circular references in Python?

How can I avoid circular references in Python?

To avoid circular references in Python, you can use weak references or redesign your data structures.

What are weak references and how do they work?

Weak references allow you to reference an object without preventing it from being garbage collected. This helps avoid memory leaks.

Can you give me an example of using weak references?

Sure! You can use the weakref module to create a weak reference to an object. Here's a simple example:

import weakref

class MyClass:
    pass

obj = MyClass()
weak_obj = weakref.ref(obj)

print(weak_obj())  # Outputs: <__main__.MyClass object at 0x...>

# Deleting the original reference
 del obj
print(weak_obj())  # Outputs: None