What are the limitations of reference counting in Python?

What are the limitations of reference counting in Python?

Reference counting in Python has several limitations, such as inability to handle circular references and overhead in memory management.

Can you explain how circular references affect memory management?

Sure! Circular references occur when two or more objects reference each other, preventing their reference counts from reaching zero, which leads to memory leaks.

Are there any alternatives to reference counting for memory management?

Yes, Python also uses a garbage collector that can detect and clean up circular references, complementing reference counting.

How does the garbage collector work in Python?

The garbage collector in Python uses a generational approach, categorizing objects by their lifespan and periodically checking for unreachable objects.