Implemented both the `Block.alloc` and `Block.__setvalue__` methods in order to handle any compatibility issues related to Python2.
Implemented both the `Block.alloc` and `Block.__setvalue__` methods in order to handle any compatibility issues related to Python2.

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