2008/6/7, kj <[EMAIL PROTECTED]>: > > > > ... The original Perl function takes a reference to an array, removes > from this array all the elements that satisfy a particular criterion, > > and returns the list consisting of the removed elements. ... > > > > Just out of curiosity, as I didn't find any mention of filter() in the suggestions in this thread, I'd like to ask, whether there are some reasons, why not to use it (or the itertools equivalent); actually it seems to me to be the simplest way to acomplish the mentioned task (as the solutions not modifying the original list were proposed too). e.g.:
>>> lst=range(14) >>> odd = filter(lambda x: x % 2, lst) >>> even = filter(lambda x: not x % 2, lst) >>> lst, odd, even (or a version using itertools.ifilter, ifilterfalse) Are there maybe some significant performance disadvantages in the two subsequent implied loops over the input list? Regards, Vlastimil Brom
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