[MATRIX-SIG] Much ado about nothingness.

[Jim Fulton]

Jim Fulton wrote:
> 
> Ted Horst wrote:
> >
> > Has anybody looked at the Missing type from DigiCool ?
> 
> (Actually, Digital Creations, aka DC :)
> 
> > It has the desired
> > behavior for arithmetic operations, but doesn't work correctly for math or
> > umath functions.  I have no idea how hard this would be to get working,
> 
> This would be easy.  I'm been meaning too....so little time. :-(
> 
> I'd be happy to do this if needed.

OK, I went ahead and fixed this.  I also fixed an awful
reference counting bug and make missing values picklable.

The new version may be found at:

www.digicool.com/releases/ExtensionClass/ExtensionClass-1.0.1.tar.gz

Jim

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