[Python-ideas] PEP 505: None-aware operators

[David Mertz]

On Tue, Jul 31, 2018, 1:47 PM Steven D'Aprano <steve at pearwood.info> wrote:

> Yes it is. Rhodri is correct, although I admit that I hadn't realised
> this point myself until he pointed it out. (That is why until now I've
> been writing examples like "spam?.eggs?.cheese?.aardvark" which is
> redundant.)
>

Again, one of the most vocal advocates of the PEP gets the semantics wrong!

`spam?.eggs?.cheese?.aardvark` is NOT redundant for `
spam?.eggs.cheese.aardvark`.  The two expressions simply do different
things, but in a way guaranteed to assure that also everyone gets the
actual behaviors wrong.

Hint, run this before each expression:

    spam.eggs.cheese = None
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