testing if a list contains a sublist

Dan Stromberg drsalists at gmail.com
Tue Aug 16 01:38:51 CEST 2011


Check out collections.Counter if you have 2.7 or up.

If you don't, google for multiset or bag types.

On Mon, Aug 15, 2011 at 4:26 PM, Johannes <dajo.mail at web.de> wrote:

> hi list,
> what is the best way to check if a given list (lets call it l1) is
> totally contained in a second list (l2)?
>
> for example:
> l1 = [1,2], l2 = [1,2,3,4,5] -> l1 is contained in l2
> l1 = [1,2,2,], l2 = [1,2,3,4,5] -> l1 is not contained in l2
> l1 = [1,2,3], l2 = [1,3,5,7] -> l1 is not contained in l2
>
> my problem is the second example, which makes it impossible to work with
> sets insteads of lists. But something like set.issubset for lists would
> be nice.
>
> greatz Johannes
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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