Testing for None should be done with 'is'

diff --git a/Lib/idlelib/CallTips.py b/Lib/idlelib/CallTips.py
index 67d97d27bbb7811653fde71f5ab632c92fe437a9..97d9746688ec56bdedc5aa022096d2ab3a03030e 100644 (file)
--- a/Lib/idlelib/CallTips.py
+++ b/Lib/idlelib/CallTips.py
@@ -21,7 +21,7 @@ class CallTips:
     ]
 
     def __init__(self, editwin=None):
-        if editwin == None:  # subprocess and test
+        if editwin is None:  # subprocess and test
             self.editwin = None
             return
         self.editwin = editwin