How to catch str exception?

[MRAB]

Paul Rubin wrote:
> "anuraguniyal at yahoo.com" <anuraguniyal at 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.

I would've thought that a modern IDE would do a lot of the work for you.