[PEAK] Re: Trellis + Python 2.6

[Phillip J. Eby]

At 01:05 AM 11/19/2008 +0200, Sergey Schetinin wrote:
>I'll have to look into using collections.MutableSet, but I won't have
>any time for this for a few days. Will report when done.

That would require a pretty substantial rewrite, which then wouldn't 
work with any version less than 2.6.  (The collections abstract bases 
don't delegate operations to a ._data member.)