How can I identify circular references in Python?

How can I identify circular references in Python?

You can identify circular references in Python using the gc module, which provides functions to interact with the garbage collector.

Can you show me a code example?

Sure! Here's a simple example:

import gc

def circular_reference():
    a = []
    b = []
    a.append(b)
    b.append(a)

circular_reference()

# Check for circular references
print(gc.garbage)

What does gc.garbage return?

gc.garbage returns a list of objects that the garbage collector found to be unreachable but cannot be freed due to circular references.

Are there any tools to help visualize these references?

Yes, tools like objgraph can help visualize object references and identify circular references in your code.