Updated the constructor for ptypes.ptype._base_generic so that it explicitly setattrs the default for each item in __slots__ as this was broken by python3.
Updated the constructor for ptypes.ptype._base_generic so that it explicitly setattrs the default for each item in __slots__ as this was broken by python3.

arizvisa/syringe,arizvisa/syringe,arizvisa/syringe,arizvisa/syringe,arizvisa/syringe