Cannot pickle KeyedRef object

[patrick-toulme]

I am trying to dill dump a PyTorch FX Graph object. I am hitting this error. I am using recurse=True. Is this a known error?

TypeError: cannot pickle 'KeyedRef' object

[mmckerns]

It'd be good to see the entire traceback, and even better if you post the traceback with dill.detect.trace(True). That would also let me know whether it's something that the pytorch developers should handle or not.

[patrick-toulme]

I wrote my own pickler for KeyedRef. I also ran into problems pickling a WeakRef. Currently I am running into stack overflow. I enabled the trace and it looks to be going very deep into nested dictionaries.

[mmckerns]

Ok, that sounds interesting. If you want to post your pickling traceback or a self-contained example that generates what you are seeing, that would help other folks to try to reproduce what you are seeing.