REF/CLN: ops boilerplate (original) (raw)

A ton of comparison and arithmetic operations do something combination of:

• other = lib.item_from_zerodim(other)
• listlike but not arraylike --> wrap in ndarray
• return NotImplemented if operating against a senior class
• raise ValueError if there is a length mismatch

But we don't always do all of these, and we definitely don't use+test error messages as consistent as @gfyoung would like.

This behavior could all be collected+standardized in a decorator