Pythonic way to determine if one char of many in a string

[MRAB]

Dennis Lee Bieber wrote:
> On Wed, 18 Feb 2009 21:22:45 +0100, Peter Otten <__peter__ at web.de>
> declaimed the following in comp.lang.python:
> 
>> Steve Holden wrote:
>>
>>> Jervis Whitley wrote:
>>>>> What happens when you have hundreds of megabytes, I don't know.
>>>>>
>>>>>
>>>> I hope I never have to test a word that is hundreds of megabytes long
>>>> for a vowel :)
>>> I see you don't speak German ;-)
>> I tried to come up with a funny way to point out that you're a fool.
>>
>> But because I'm German I failed.
>>
> 	Yeah... the proper language to bemoan is Welsh <G> 
> 
> Where "w" is vowel <G>
> 
So is "y", but then it is in English too, sometimes.