replace has_key with 'in' operator
diff --git a/Lib/idlelib/MultiCall.py b/Lib/idlelib/MultiCall.py
index b228f57..2cf931c 100644
--- a/Lib/idlelib/MultiCall.py
+++ b/Lib/idlelib/MultiCall.py
@@ -185,7 +185,7 @@
                                                           seq, handler)))
 
     def bind(self, triplet, func):
-        if not self.bindedfuncs.has_key(triplet[2]):
+        if triplet[2] not in self.bindedfuncs:
             self.bindedfuncs[triplet[2]] = [[] for s in _states]
             for s in _states:
                 lists = [ self.bindedfuncs[detail][i]