How much sanity checking is required for function inputs?

[Ethan Furman]

On 04/23/2016 06:00 PM, Christopher Reimer wrote:

> Hmm... What do we use Enum for? :)

from enum import Enum

class Piece(Enum):
     king = 'one space, any direction'
     queen = 'many spaces, any direction'
     bishop = 'many spaces, diagonal'
     knight = 'two spaces cardinal, one space sideways, cannot be blocked'
     rook = 'many spaces, cardinal'
     pawn = 'first move: one or two spaces forward; subsequent moves: 
one space forward; attack: one space diagonal'

--> list(Piece)
[
     <Piece.king: 'one space, any direction'>,
     <Piece.queen: 'many spaces, any direction'>,
     <Piece.bishop: 'many spaces, diagonal'>,
     <Piece.knight: 'two spaces cardinal, one space sideways, cannot be 
blocked'>,
     <Piece.rook: 'many spaces, cardinal'>,
     <Piece.pawn: 'first move: one or two spaces forward; subsequent 
moves: one space forward; attack: one space diagonal'>,
     ]

--> p = Piece.bishop
--> p in Piece
True

--> p is Piece.rook
False

--> p is Piece.bishop
True

--
~Ethan~