Rhamphoryncus wrote: > Sorry, I should have clarified that the original post assumed you > needed info from the "do something" phase to determine if an element is > removed or not. As you say, a list comprehension is superior if that > is not necessary.
that's spelled out = [] for i in items: ... do something ... if i > 0.5: out.append(i) in Python, and is only a little slower than a list comprehension, as written above. if performance is really important, move the method lookup out of the loop: out = [] append = out.append for i in items: ... do something ... if i > 0.5: append(i) </F> -- http://mail.python.org/mailman/listinfo/python-list