[Tutor] using in over several entities

[Alan Gauld]

"Tino Dai" <tinoloc at gmail.com> wrote 

> dbs= ['oracle','mysql','postgres','infomix','access']
> 
> and we wanted to do this:
> 
> if 'oracle' in dbs or 'mysql' in dbs or 'bdb' in dbs:
>   <... do something ...>
> 
> Is there a short way or writing this? Something like
>    ('oracle','mysql','bdb') in dbs

You could use sets and check the intersection:

dbs = set(['oracle','mysql','postgres','infomix','access'])
test = set(['oracle','mysql','dbd'])

if dbs.intersection(test):

HTH,

-- 
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld