Issue 10150: Local references not released after exception (original) (raw)

Issue10150

Created on 2010-10-20 04:01 by James.Bowman, last changed 2022-04-11 14:57 by admin. This issue is now closed.

Messages (3)
msg119187 - (view)	Author: James Bowman (James.Bowman)	Date: 2010-10-20 04:01
import sys def foo(): x = [o] * 100 raise ArithmeticError o = "something" print sys.getrefcount(o) try: foo() except ArithmeticError: pass print sys.getrefcount(o) ------------------------------------------- Gives: 4 104 Looking at the CPython source, FrameObject's deallocator does actually decrement refcounts of its locals and arguments. Guessing that the FrameObject is not being deallocated.
msg119188 - (view)	Author: Alex Gaynor (alex) *	Date: 2010-10-20 04:58
That's because in Python 2.5 at that point in the code sys.exc_info() still points at the traceback (and by extension, the frame) thus x is not deallocated yet. I don't think this is a bug.
msg119190 - (view)	Author: Georg Brandl (georg.brandl) *	Date: 2010-10-20 06:22
Alex is correct. (You can prove that by raising and catching another exception before the second getrefcount().)