id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
4041	cache backends should implement __contains__ so that the in operator may be used	Gary Wilson <gary.wilson@…>	Jacob	"So instead of
{{{
#!python
cache.has_key(mykey)
}}}

one could do
{{{
#!python
mykey in cache
}}}"		closed	Core (Cache system)	dev		fixed			Ready for checkin	1	0	0	0	0	0