Change inline comment.

drvinceknight · drvinceknight · commit 07caf8fff77d · 2016-12-05T08:40:15.000Z
diff --git a/axelrod/deterministic_cache.py b/axelrod/deterministic_cache.py
@@ -99,7 +99,7 @@ def _is_valid_key(self, key):
         if len(key) != 3:
             return False
 
-        # The triplet should be a pair of axelrod.Player subclasses and an
+        # The triplet should be a pair of axelrod.Player instances and an
         # integer
         try:
             if not (
