"anuraguni...@yahoo.com" <anuraguni...@yahoo.com> writes:
> there are many such exceptions and hence it is not feasible to catch
> them all or know them all unless i go thru src code.

But that is true of all exceptions.  The alternative seems to be a
"checked exception" scheme like Java's, which in practice imposes a
huge pain on programmers, who have to modify type signatures all up
and down the call hierarchy every time they raise another exception at
the bottom level.
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