A class with eventhandlers ?

[Runsun Pan]

Is it possible to code a class that raise exception
automatically when an error occurs?

We usually use try-except pair at where we expect an
error might occur. What am thinking is a class that
has built in error handling so we can do this:

c=MyClass()
c.onError = some_hook

or

c.onError('IndexError', IndexErrorHook)

or, more specific, a function/method-specific error
handling feature:

c.load.onError( IOErrorHook)
c.load( filename )

Is there such a mechnism around? If not, is it possible
to make such a thing ?

--
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Runsun Pan, PhD
python.pan at gmail.com
Nat'l Center for Macromolecular Imaging
http://ncmi.bcm.tmc.edu/ncmi/
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