Yury Selivanov wrote:
> While the example is valid, I doubt that it is in any sense
> "common" case.
No it is a corner case. Another way to spell it is:
try:
try:
raise IndexError()
except:
raise CustomError() from None
except CustomError as e:
# nevermind, let's see the whole thing after all
e.__cause__ = Ellipsis
raise e
Ethan