Igor Kuvychko

@reshamas - thank you, really appreciate your comments and help! I made the changes accordingly.

@OriolAbril - thanks for the detailed style review and comments, super helpful! I committed requested changes. Thanks!

@OriolAbril - any actions needed on my part to get this PR merged? Also, anything I need to do differently for future PRs to avoid this?

@symeneses - thank you!!! looks like it worked 👍

@OriolAbril - any issues with the merge? I wanna make sure it doesn't fall through the cracks somehow. Thanks!

I'd like to take this one. @OriolAbril, you can assign it to me (not sure if that's part of the process). Thanks!

/take @reshamas - thank you!!

"take"

@reshamas - no worries, thank you! I started working on this notebook, and ran into an issue. The example used no longer works as intended: with `step = pm.Metropolis()` sampling...

@OriolAbril - indeed, new exception message is excellent, very neat improvement! Thanks for your advice, I'll experiment with bad priors, and keep working through this notebook. If you find a...