method for Exception base class to raise the exception in an expression?

[Bengt Richter]

Sometimes it could be handy, e.g., cutting short iteration:

 >>> def raisex(self, *args):
 ...     raise self.__class__(self, *args)
 ...
 >>> Exception.raisex = raisex
 >>> list(i for i in xrange(20) if i<10 or StopIteration().raisex())
 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
 >>> list(i for i in xrange(20) if i<15 or StopIteration().raisex())
 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
 >>> list(i for i in xrange(20) if i<25 or StopIteration().raisex())
 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]

a class method could be nicer once we have Exception as a new-style class.

Just a thought.

Regards,
Bengt Richter