5 commits

Author	SHA1	Message	Date
Fred Drake	0a4dd390bf	Make weak references subclassable: ... - weakref.ref and weakref.ReferenceType will become aliases for each other - weakref.ref will be a modern, new-style class with proper __new__ and __init__ methods - weakref.WeakValueDictionary will have a lighter memory footprint, using a new weakref.ref subclass to associate the key with the value, allowing us to have only a single object of overhead for each dictionary entry (currently, there are 3 objects of overhead per entry: a weakref to the value, a weakref to the dictionary, and a function object used as a weakref callback; the weakref to the dictionary could be avoided without this change) - a new macro, PyWeakref_CheckRefExact(), will be added - PyWeakref_CheckRef() will check for subclasses of weakref.ref This closes SF patch #983019.	2004-07-02 18:57:45 +00:00
Tim Peters	403a203223	SF bug 839548: Bug in type's GC handling causes segfaults. ... Also SF patch 843455. This is a critical bugfix. I'll backport to 2.3 maint, but not beyond that. The bugs this fixes have been there since weakrefs were introduced.	2003-11-20 21:21:46 +00:00
Mark Hammond	91a681debf	Excise DL_EXPORT from Include. ... Thanks to Skip Montanaro and Kalle Svensson for the patches.	2002-08-12 07:21:58 +00:00
Fred Drake	335244c710	Remove bogus declaration.	2001-10-05 22:06:45 +00:00
Fred Drake	8844d5264f	The weak reference implementation, separated from the weakref module.	2001-10-05 21:52:26 +00:00