Avoid Memory Leaks in Python3 with Weak References

In Python3, the weakref module allows one to create weak references to objects, which do not increase the reference count and help in avoiding circular references that lead to memory leaks. Using weak references is particularly useful in managing caches and large data structures where memory efficiency is crucial. When the original object is destroyed, weak references to it automatically become None, enabling efficient cleanup and resource management.

This Python code demonstrates creating and using a weak reference via the weakref module. It highlights how weak references help manage memory by allowing objects to be garbage collected, with the weak reference pointing to None after object deletion.

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