tree 104dda0dd1ec84e9c8eacf05194cacb5698c9f36
parent b98dd2e5d2133b1c8cebd1dd221cf69eefeb154f
author Georg Brandl <georg@python.org> 1193120806 +0000
committer Georg Brandl <georg@python.org> 1193120806 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/py3k%4058602

#1061 (mainly by Thomas Wouters): use weak sets for abc caches.