Can I dynamically convert an instance of one class to another?

Question

I have a class that describe chess pieces. I make for all type piece in the Board a class for example Pawn, Queen, keen, etc... I have a trouble in Pawn class I want to conv

Answer 1

One solution could be to let Pawn, via e.g. on Pawn.promote_to('Q'), return a Queen such that piece = piece.update() would be sensible in any case.