Usefulness of the "not in" operator

[Mel]

Steven D'Aprano wrote:

> candide wrote:
> 
>> So what is the usefulness of the "not in" operator ? Recall what Zen of
>> Python tells
>> 
>> There should be one-- and preferably only one --obvious way to do it.
> 
> And "not in" is the obvious way to do it.
> 
> 
> "If the key is not in the ignition, you won't be able to start the car."
> 
> "If not the key is in the ignition, you won't be able to start the car."
> 
> 
> Who like that second one speaks?

:)  
"If the key is not in the ignition, you will be able to start the car, not."

	Mel.