Roy Smith <[EMAIL PROTECTED]> writes: > ssecorp <[EMAIL PROTECTED]> wrote: > >> i dont get what you mean, if i dont do anything python will raise an >> indexerror so it is an indexerror. > > You wrote: > >> > > def pop(self): >> > > try: >> > > return self.queue.pop(0) >> > > except: >> > > raise IndexError, "pop from empty queue" > > You are assuming that the only possible exception that can be thrown by > "return self.queue.pop(0)" is IndexError. Maybe, maybe not. I gave you > one example of how something else could be thrown -- a typo in your code > leading to a NameError. Maybe even something more exotic like MemoryError? > > The defensive thing to do is catch exactly the exception you expect to > happen. In this case, that means IndexError.
And you do that by except IndexError: raise TheErrorYouNowWantToRaise And except IndexError, e: if you want access to the exception as well. -- http://mail.python.org/mailman/listinfo/python-list
