How can I fix circular references in Python?

How can I fix circular references in Python?

Circular references occur when two or more objects reference each other, preventing them from being garbage collected. You can fix this by using weak references or restructuring your code.

What are weak references and how do I use them?

Weak references allow you to reference an object without preventing it from being garbage collected. You can use the weakref module in Python to create weak references.

Can you show me an example of using weak references?

Sure! Here's a simple example:

import weakref

class MyClass:
    def __init__(self, name):
        self.name = name

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

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

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