[Tutor] How to determine if every character in one string is inanother string?

[Alan Gauld]

"Jerry Hill" <malaclypse2 at gmail.com> wrote 

> I like this one:
> all(char in string.printable for char in testString)

What is all?
Is that a 2.5 thing (I'm still on 2.4 here)

>>>> testString = "qwerty\buiop"
>>>> all(char in string.printable for char in testString)
> False
> 
> -- 
> Jerry
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