From: Antoine Pitrou <solipsis@pitrou.net>
Date: Sat, 8 Dec 2012 20:18:50 +0000 (+0100)
Subject: Issue #16602: When a weakref's target was part of a long deallocation chain, the... 
X-Git-Tag: v3.4.0a1~1888
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=53f604c79458861553d0ea00db44074b7c4d4333;p=python

Issue #16602: When a weakref's target was part of a long deallocation chain, the object could remain reachable through its weakref even though its refcount had dropped to zero.

Thanks to Eugene Toder for diagnosing and reporting the issue.
---

53f604c79458861553d0ea00db44074b7c4d4333
diff --cc Misc/NEWS
index 7dab2cd03a,b26d20b54d..cc4f9929ed
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@@ -10,19 -12,15 +10,23 @@@ What's New in Python 3.4.0 Alpha 1
  Core and Builtins
  -----------------
  
+ - Issue #16602: When a weakref's target was part of a long deallocation
+   chain, the object could remain reachable through its weakref even though
+   its refcount had dropped to zero.
+ 
 -- Issue #16416: On Mac OS X, operating system data are now always
 -  encoded/decoded to/from UTF-8/surrogateescape, instead of the locale encoding
 -  (which may be ASCII if no locale environment variable is set), to avoid
 -  inconsistencies with os.fsencode() and os.fsdecode() functions which are
 -  already using UTF-8/surrogateescape.
 +- Issue #16495: Remove extraneous NULL encoding check from bytes_decode().
 +
 +- Issue #16619: Create NameConstant AST class to represent None, True, and False
 +  literals. As a result, these constants are never loaded at runtime from
 +  builtins.
 +
 +- Issue #16455: On FreeBSD and Solaris, if the locale is C, the
 +  ASCII/surrogateescape codec is now used, instead of the locale encoding, to
 +  decode the command line arguments. This change fixes inconsistencies with
 +  os.fsencode() and os.fsdecode() because these operating systems announces an
 +  ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.
 +
 +- Issue #16562: Optimize dict equality testing.  Patch by Serhiy Storchaka.
  
  - Issue #16588: Silence unused-but-set warnings in Python/thread_pthread