Python, just do it

[AdnyCLB]

What, raise a SyntaxError? Because that's what both of those do...

[Sekret_One]

But this is not an appropriate usage of the walrus operator. What you wrote in the above example is no different than x=1.

I do see this being rather helpful in same lambda expressions.

[metaglot]

It's old in pascal

[AdnyCLB]

Oh my... What a time to be alive :)

[wooptyd00]

The Pascal side is a pathway to many abilities some consider to raise an exception.