added notes about weakref changes

This commit is contained in:
Fred Drake 2004-02-06 04:15:22 +00:00
parent d310f13cd2
commit 228765b0e1
1 changed files with 15 additions and 0 deletions

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@ -12,6 +12,21 @@ What's New in Python 2.4 alpha 1?
Core and builtins
-----------------
- Made omitted callback and None equivalent for weakref.ref() and
weakref.proxy(); the None case wasn't handled correctly in all
cases.
- Fixed problem where PyWeakref_NewRef() and PyWeakref_NewProxy()
assumed that initial existing entries in an object's weakref list
would not be removed while allocating a new weakref object. Since
GC could be invoked at that time, however, that assumption was
invalid. In a truly obscure case of GC being triggered during
creation for a new weakref object for an referent which already
has a weakref without a callback which is only referenced from
cyclic trash, a memory error can occur. This consistently created a
segfault in a debug build, but provided less predictable behavior in
a release build.
- input() builtin function now respects compiler flags such as
__future__ statements. SF patch 876178.