From: ldo@nz.invalid   
      
   On Tue, 19 Aug 2025 10:54:30 -0400, Arne Vajhøj wrote:   
      
   > Two points related to the fact that they have a special operator instead   
   > of just using plain assignment.   
      
   It’s yet another mechanism for local scoping within an expression. Python   
   doesn’t allow statement blocks within expressions, but it has for-   
   expressions where the for-variables are strictly local to the expression.   
      
   To this has been added the walrus. But the walrus is (mostly) unnecessary;   
   you can use a for-expression that iterates over just one value, to get the   
   same effect.   
      
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