[Zope-dev] zc.dict.OrderedDict efficiency

Benji York benji at zope.com
Thu Sep 18 16:02:45 EDT 2008


On Thu, Sep 18, 2008 at 3:52 PM, Thomas Lotze <thomas at thomas-lotze.de> wrote:
> The documentation of OrderedDict from zc.dict 1.2.1 states that the
> current implementation is inefficient for large collections because it
> uses a PersistentList to store the order. It also says that a BList which
> would be preferrable is not used as it is not yet released.
>
> - What's the state of those BLists? Are they just around the corner or
>  would it be worthwhile to consider some interim solution to the
>  efficiency issue?

I'm not aware of zc.blist's current state, but I think it's more-or-less
ready.  If not and anyone knows what needs to be done to ready it for a
release, you could take that up (the code is in svn.zope.org).
-- 
Benji York
Senior Software Engineer
Zope Corporation


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