This helps finding packages with bad utf #537
Excellent. Thanks for the contrib.
One concern I have - what if there are clients relying on the UnicodeDecodeError to trap such exceptions? Perhaps that's unlikely and this would be safe. Let's roll it out and see.
Also, I feel a little dirty evaluating
…on, avoiding any concerns about exception type, but still communicating the context necessary to trace the issue. Ref #537.