How can I debug circular references in Python?

I'm having trouble with circular references in my Python code. How can I debug them?

Circular references occur when two or more objects reference each other, preventing garbage collection. You can use tools like gc module to help identify them.

What specific functions in the gc module should I use?

You can use gc.collect() to force garbage collection and gc.get_objects() to list all objects tracked by the garbage collector.

Is there a way to visualize these references?

Yes, you can use libraries like objgraph to visualize object references and identify circular dependencies.

Can you give me an example of how to use objgraph?

Sure! You can use objgraph.show_backrefs() to visualize back references from a specific object, which helps in identifying circular references.