navshaikh / sudoku Goto Github PK

sudoku.display method prints input sudoku in ascii-ish 2D. Change display so that it returns a string instead of printing directly to stdout.

def display(sudoku, msg=None):
""" Returns a string for printing sudoku in 2d."

solve(sudoku) expects an 81-character string as input. If non-string object is provided, raise InvalidSudokuError.

Example:
sudoku.solve(1) should throw InvalidSudokuError explaining that string object is expected