On Wed, Jun 23, 2021, at 18:01, Juan Nunez-Iglesias wrote:
Personally I was a fan of the Enum approach. People dislike it because it is not “Pythonic”, but imho that is an accident of history because Enums only appeared (iirc) in Python 3.4. In fact, they are the right data structure for this particular problem, so for my money we should *make it* Pythonic by starting to use it everywhere where we have a finite list of choices.
The enum definitely feels like the right abstraction. But the resulting API is clunky because of naming and top-level scarcity. Hence the suggestion to tag it onto np.copy, but there is an argument to be made for consistency by placing all enums under np.flags or similar. Still, np.flags.copy.IF_NEEDED gets long. Stéfan