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
12538	Removal (rename) of BaseQuery in SVN version causes ImportError for previously pickled Querysets	James Snow	nobody	The issue seems to be that pickling a Queryset's query attribute per the documentation pickles a BaseQuery object. With Query taking the place of BaseQuery in the current svn version an attempt to unpickle a pickled BaseQuery object results in an import error. I don't have a particularly deep understanding of how cPickle and pickle work but my guess is that pickle attempts to instantiate a new object based on the pickled object's {{{__module__}}} and {{{__class__}}} values. If there isn't a simple fix for this it seems the documentation should at least be ammended to warn of the issue.		closed	Documentation	dev		fixed		petrilli@…	Accepted	0	0	0	0	0	0