code: def getcellnp(self, columnname, rownr, nparray):
          
          if not nparray.flags.c_contiguous or nparray.size == 0:
              raise ValueError("Argument 'nparray' has to be a contiguous " +
                               "numpy array")
          return self._getcellvh(columnname, rownr, nparray)
docs: Get data from a column cell into the given numpy array .
  
          Get the contents of a cell containing an array into the
          given numpy array. The numpy array has to be C-contiguous
          with a shape matching the shape of the column cell.
          Data type coercion will be done as needed.