Boolean tests [was Re: Attack a sacred Python Cow]

[Erik Max Francis]

Russ P. wrote:

> All this discussion about "if x" has me wondering. I use it all the
> time because a fully explicit test just seems redundant. But maybe it
> does have some value in terms of readability and type checking. After
> all, it is possible to forget whether something is a number or a list.
> 
> Having said that, it would sure be nice to be able to write
> 
> if myList is not empty:

I sure hope that's a joke.  `x is not y` means something quite different.

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