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> I just observed that currently, tracebacks are 'shortened' based on
> the 'level' passed.
> [...]
> Notice that the bit before the "..." gets shorter as you provide a
> higher level argument.
> This makes it hard to transparently wrap error producing functions,
> as the amount of wrapping you do will effect the usefulness of the traceback

This is not a "legal" bug, but it is a "moral" one :-)

-- Roberto