When I used namedtuple that way it tended to blow up on me, because namedtuples implement 'dunder' methods to act as sequences, which is not what I expect for s

When I used namedtuple that way it tended to blow up on me, because namedtuples implement 'dunder' methods to act as sequences, which is not what I expect for some random algebraic datatype. This makes bugs manifest as very head-scratching behavior. Nowadays I use my own struct type builder with only the equivalent of 'derives Show' and such.