[Numpy-discussion] Matching 0-d arrays and NumPy scalars

[Travis E. Oliphant]

Hi everybody,

In writing some generic code, I've encountered situations where it would 
reduce code complexity to allow NumPy scalars to be "indexed" in the 
same number of limited ways, that 0-d arrays support.

For example, 0-d arrays can be indexed with

    * Boolean masks
    * Ellipses x[...]  and x[..., newaxis]
    * Empty tuple x[()]

I think that numpy scalars should also be indexable in these particular 
cases as well (read-only of course,  i.e. no setting of the value would 
be possible).

This is an easy change to implement, and I don't think it would cause 
any backward compatibility issues.

Any opinions from the list?


Best regards,

-Travis O.