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Agreed. It could be written much more clearly in my opinion like this:

    [varname] = [x for x in l if predicate_with_single_truth_value(x)]

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I had to check that on the REPL. I'm surprised that even works and I can't think of a good reason why should list syntax be allowed as a lvalue, in addition to tuple syntax.

It's called destructuring assignment. It's been around for a while.

http://dunsmor.com/lisp/onlisp/onlisp_22.html

I mean why would you want to allow both list and tuple syntax for exactly the same semantics, when either of them would be enough.

I just wish we had destructing assignment for other types as well. And maybe a proper pattern matching!

Good idea!

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