def _simple_blockify(tuples, dtype):
 (values, placement) = _stack_arrays(tuples, dtype)
 if ((dtype is not None) and (values.dtype != dtype)):
  values = values.astype(dtype)
 block = make_block(values, placement=placement)
 return [block]

def _simple_blockify ( tuples , dtype ) : ( values , placement ) = _stack_arrays ( tuples , dtype ) if ( ( dtype is not None ) and ( values . dtype != dtype ) ) : values = values . astype ( dtype ) block = make_block ( values , placement = placement ) return [ block ]
return a single array of a block that has a single dtype; if dtype is not none .