> > 1) Implement exeptions according to the documentation. > > Cleaning exceptions after they are handled is what > > most users would expect, last but not least since > > the documentation suggests it. > > This is not a practical option -- while I don't think the current > behavior is ideal, we have a great deal of code that relies on this > behavior. I'm sure that many other Python developers are in the > same boat. If this is to change, we need to do a lot more work to > justify it, and to give at least full one version of notice before > enforcing it. Indeed. Not to mention that a new opcode would have to be invented to signal the end of the except block. > > 2) Add an optional boolean clear argument to sys.exc_info() > > This is lame, but it gives the user one way out. > > exc_info(...) > exc_info() -> (type, value, traceback) > > Return information about the exception that is currently being handled. > This should be called from inside an except clause only. > > Adding an argument to this function reeks of a kludge. Its job is > to return information, and should not take any magic arguments to > make it a 'one-shot'. Agreed; -1 on this particular API. > > 3) Add an extra reset_exp function to sys. > > More lame since it requires an extra function, > > just to patch a "feature". > > This one gets my vote (if this were a democracy). "Explicit is > better than implicit". The new symbol in the sys namespace also > makes it easy to test for the capability (without a version number > check). Maybe it should be called 'clear_exc' or 'reset_exc_info' > (to match the C API name). Let's call it exc_reset() or exc_clear(). > > 4) Keep things as they are, and expect the Spanish Inquision. > > I'm even okay with the status quo and can continue to use my current > hack to clear exception data. You can always clear it by raising and catching another exception. :-) --Guido van Rossum (home page: http://www.python.org/~guido/)
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