A and B but not C in list

[Corey Richardson]

On 01/23/2011 04:05 PM, CM wrote:
> In Python, is there a recommended way to write conditionals of the
> form:
>
> "if A and B but not C or D in my list, do something."  ?
>
> I may also have variations on this, like "if A but not B, C, or D".
>
> Do I have to just write out all the if and elifs with all possible
> conditions, or is there a handier and more code-maintainable way to
> deal with this?
>
> Thanks.
>
>
>
>

if (A in list and B in list) and (C not in list or D not in list):
     pass

I'm sure the gurus on this list can come up with something better.