[Tutor] sorting / outputting varibales

[ted b]

If i input the following in python:
   var1 = 7
   var2 = 9
   var3 = 5
   args = [var1, var2, var3]
   args.sort()

then if if type:

   args

the output is

   [5, 7, 9]

but i want the output to be

   [var3, var1, var2]

is there a function that will output the variable
names in the order they have been sorted instead of
the variable contents themselves?
thanks

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