[Python-Dev] PEP-419: Protecting cleanup statements from interruptions

Benjamin Peterson benjamin at python.org
Sun Apr 8 23:42:50 CEST 2012

2012/4/8 Paul Colomiets <paul at colomiets.name>:
> Function 'sys.setcleanuphook'
> -----------------------------
> A new function for the ``sys`` module is proposed.  This function sets
> a callback which is executed every time ``f_in_cleanup`` becomes
> false.  Callbacks get a frame object as their sole argument, so that
> they can figure out where they are called from.

Calling a function every time you leave a finally block? Isn't that a
bit expensive?


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