Added missing exception specifier to prevent test suite from crashing.
Added missing exception specifier to prevent test suite from crashing.

mwiebe/dynd-python,ContinuumIO/dynd-python,izaid/dynd-python,ContinuumIO/dynd-python,insertinterestingnamehere/dynd-python,insertinterestingnamehere/dynd-python,izaid/dynd-python,izaid/dynd-python,izaid/dynd-python,insertinterestingnamehere/dynd-python,mwiebe/dynd-python,ContinuumIO/dynd-python,mwiebe/dynd-python,mwiebe/dynd-python,ContinuumIO/dynd-python,insertinterestingnamehere/dynd-python