replace has_key with 'in' operator
diff --git a/Lib/curses/has_key.py b/Lib/curses/has_key.py
index 60b7be9..1dd5a3b 100644
--- a/Lib/curses/has_key.py
+++ b/Lib/curses/has_key.py
@@ -182,7 +182,7 @@
         L = []
         _curses.initscr()
         for key in _capability_names.keys():
-            system = _curses.has_key(key)
+            system = key in _curses
             python = has_key(key)
             if system != python:
                 L.append( 'Mismatch for key %s, system=%i, Python=%i'