remove a list from a list

[J. Clifford Dyer]

Rares Vernica wrote:
> Hi,
> 
> I have the following problem:
> 
> I have a list like
>   e = ['a', 'b', 'e']
> and another list like
>   l = ['A', 'a', 'c', 'D', 'E']
> I would like to remove from l all the elements that appear in e
> case-insensitive. That is, the result would be
>   r = ['c', 'D']
> 
> What is a *nice* way of doing it?
> 
> Thanks a lot,
> Ray
> 

if you can guarantee that e will always be made up of lowercase letters,
then you can do the following:

r = [ x for x in l if x.lower() not in e ]

Cheers,
Cliff