added (90% of) word list editor

1 files changed, 2 insertions, 1 deletions

diff --git a/deck.py b/deck.py
index afe2620..8a14d0d 100644
--- a/deck.py
+++ b/deck.py
@@ -142,7 +142,8 @@ class Deck:
     # Hide the deck.
     def hide(self):
         for c in self.cards:
-            c.hide_card()
+            if c is not None:
+                c.hide_card()
 
     # Return the length of the deck.
     def count(self):