slice object unpickable

[Sebastien de Menten]

perfect ! I was not aware of this functionnality. But indeed, in the
python library reference, I should have read the doc of the module
just under cPickle.
thanks a lot

> 
>   Or use the copy_reg module to make them pickleable:
> 
>     def pickleSlice(slice):
>         return unpickleSlice, (slice.start, slice.stop, slice.step)
>     def unpickleSlice(start, stop, step):
>         return slice(start, stop, step)
>     copy_reg.pickle(slice, pickleSlice, unpickleSlice)
> 
>   Jp