On Thu, 18 May 2006 00:48:50 +0530, Giovanni Bajo <rasky at develer.com> wrote: >>> + if len(revs) == 0: > if revs: [snip] >>> + if len(revs & src_pre_exist_range) != > 0: > if revs & src_pre_exist_range: hmmm, both expressions result in and empty RevisionSet, and not None. So, am afraid we cant do this... Regards, Madan.