iterating through lists to delete elements

[Mitch Chapman]

Erik Max Francis wrote:
> 
> Mark Robinson wrote:
> 
> > Can anyone advise me the best way to iterate through a list and
> > deleting
> > elements that don't meet a certain criteria.
> 
> Use filter to make a new list, and then replace the original list with
> the filtered one.
> 
> Modifying a list in place while you're iterating over it isn't a very
> good idea.

Another variation is to iterate across a copy while removing from
the original list.

    for x in list[:]:
        if x > y:
            list.remove(x)


-- 
Mitch Chapman
Mitch.Chapman at bioreason.com