[Python-Dev] Deprecate sys.exitfunc?

[Guido van Rossum]

> Multiple well-written modules can use sys.exitfunc in a way that is
> compatible.  atexit is merely a glue to discourage non-well-written
> modules.  I'd say that atexit should be encouraged but there is
> nothing wrong with using sys.exitfunc directly, if one is aware of
> the common patching pattern: "save-old-value,
> replace-with-my-function, upon-call-invoke-saved-old-value".

But why offer two ways of doing the same thing?  Apart from b/w
compatibility, what's the advantage of using sys.exitfunc directly?

--Guido van Rossum (home page: http://www.python.org/~guido/)