I am amazed by the thoughtfulness of the Arviz/PYMC devs. I struggle with priors sometimes, although I have gotten better over time. It is still a work-on for me. Usually I muck around with the pymc random number generator, and az.plot_posterior. I know, not not great. I was trolling around Github and found that the Arviz folks had a library called Preliz (A tool-box for prior elicitation — PreliZ 0.3.1 documentation) for prior elicitation. It is very helpful! Well done folks.
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Update: For the love of God, if you care about your priors, please use Preliz, the recent updates are amazing.
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