[Tutor] Testing Membership in a Sequence

[Christian Wyglendowski]

Ok, here is a question that I thought I knew the answer to and even
vaguely remember discussing somewhere, but now I don't have the foggiest
(and I was unable to bend google to do my bidding).

What is the most pythonic way to test for membership of multiple items
in a sequence?  For example:

x = ['a', 'b', 'c']

<pseudo code>
is ('v' or 'b') in x
</pseudo code>

I know I can do it via a loop but I was hoping to learn some nice,
clear, succinct way of doing this.  Am I hoping for too much?

Christian
http://www.dowski.com