That Python uses the exact same string if they contain the same immutable content can probably be a bit confusing. But if you want truly confusing behavior look at how Java treats numbers wrapped in their object type:

     public class Main{
 
         public static void main(String[] args){
 
             Integer a = 300;
             Integer b = 300;
 
             System.out.printf(" %s == %s: %s\n", a, b, (a == b));
 
             a = 100;
             b = 100;
 
             System.out.printf(" %s == %s: %s\n", a, b, (a == b));
         }
     }


     // output

     300 == 300: false
     100 == 100: true

When combined with Java's auto-boxing, this can create some serious confusion