Check for errors when lazy importing modules in conversion routines.
Check for errors when lazy importing modules in conversion routines.

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