From 4a95079c5c40cc6ad933ddbc9f65a74621a61f28 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Sat, 30 Sep 2017 13:31:03 -0700
Subject: [PATCH] Default argument for Board initializer

---
 tictactoe.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tictactoe.py b/tictactoe.py
index 03cb0e1..38a2e09 100644
--- a/tictactoe.py
+++ b/tictactoe.py
@@ -9,7 +9,7 @@ class Board:
     X = 'x'
     O = 'o'
 
-    def __init__(self, string):
+    def __init__(self, string='         '):
         if string is None or not isinstance(string, str):
             raise ValueError('invalid board spec')
         if len(string) != BOARD_SIZE: