[Tutor] Testing Membership in a Sequence

[Alan Gauld]

> 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'd probably just do:

if ('v' in x) or ('b' in x):
   ...

For longer lists you could use some of the functional programming
constructs, but they can get quite convoluted. A simple comprehension
might be:

if [c for c in ['b', 'v'] if c in x]:
   ....

But that's just a loop in very thin disguise...

Alan G