how to discover what values produced an exception?

[Chris Angelico]

On Tue, 7 May 2024 at 03:38, Alan Bawden via Python-list
<python-list at python.org> wrote:
> A good error message shouldn't withhold any information that can
> _easily_ be included.  Debugging is more art than science, so there is
> no real way to predict what information might prove useful in solving
> the crime.  I emphasized "easily" because of course you have to draw the
> line somewhere.

Emphasis on "easily" is correct here. How easy is it to report the
value of something that could be arbitrarily large?

ChrisA