[Python-ideas] Re: Flatten function (was: Deprecate sum of lists)

On Sun, Jun 20, 2021, 2:07 PM Sebastian Berg

NumPy has:

* `flatten()` (always copy) * `ravel()` (copies if needed, and additionally ensures contiguity) * `reshape(-1)` (copies if needed)

They are all subtly different, unfortunately.

Oops! Sebastian is right, and I made an error. NumPy ndarray.flatten() is indeed a copy. ndarray.ravel() is usually a view.