list -> set for efficiency

tfscript/tftypes.py

@@ -1,4 +1,4 @@
-validKeyList = [
+validKeyList = {
     # top row
     'escape', 'f1', 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'f10', 'f11', 'f12',
     # keyboard
@@ -16,7 +16,7 @@ validKeyList = [
     # arrows
     'uparrow', 'downarrow',
     'leftarrow', 'rightarrow'
-]
+}
 
 popErrors = (AttributeError, KeyError, TypeError)
 
@@ -636,4 +636,4 @@ class Bind(ScriptBind):
 # all inheritances have been completed
 
 ScriptBind.bindTypes = ScriptBind.__subclasses__()
-Double.bindNames = [ bind.__name__.lower() for bind in ScriptBind.bindTypes ]
+Double.bindNames = [ bind.__name__.lower() for bind in ScriptBind.bindTypes ]