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Comment by klodolph | Hacker News Reader

I can think of a few cases where I want:

    if x == y == z:

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I always found prefix notation in Clojure to be really elegant for a lot these cases that are odd in other languages:

(= x y z)

This is a bit like something you can do in C, almost by accident as a bonus language feature.

  x = y = z = 4;

But I think this is assignment expressions which were controversial in Python or something.

Not anymore, check out the walrus operator.

Yeah in Python you can do, say, a = b = []

But then the two lists are the same, and appending to one appends to the other. Not particularly useful.

It's useful when the object being assigned to those variables are literals instead of reference types, which in my experience is most of the time when you want to do the simultaneous assignment. When you do want to do reference types, you can do a,b = [], [].

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