Possible bug using arviz.compare on pymc models

I am just climbing the learning curve on using pymc for model comparison. I’m seeing a strange error that I didn’t see mentioned elsewhere in this forum or gh issues (apologies if I missed it).

I’m getting the same error that is currently popping up on the docs page.

See the TypeError on doing az.compare(…)

I would appreciate any words of wisdom on how to get around this.

Can you try pip install -U --pre arviz to see if it fixes the issue?

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Yes! That did seem to fix it. Just for reference, everything seems to be working in arviz>=0.13.0rc1

Thanks so much.