On Mon, 20 Apr 2009 20:09:12 -0700, Ross wrote: > Is there a quick way to simultaneously pop multiple items from a list? > For instance if i had the list a = [1,2,3,4,5,6,7] and I wanted to > return every odd index into a new list, my output would be new_list = > [2,4,6] or similarly if I wanted to return each index that was one away > from the midpoint in a, I would get [3,5].
Do you really need to remove them? Removing items from a list tends to be slow. The more Pythonic approach is to create a new list: >>> a = [1,2,3,4,5,6,7] >>> b = a[1::2] # odd items >>> midpoint = len(a)//2 >>> c = [a[midpoint - 1], a[midpoint+1]] >>> >>> b [2, 4, 6] >>> c [3, 5] If you really do need to delete items from a list, you can do this: >>> del a[0] # delete the item at position 0 >>> a [2, 3, 4, 5, 6, 7] >>> a.remove(2) # delete the first item equal to 2 >>> a [3, 4, 5, 6, 7] -- Steven -- http://mail.python.org/mailman/listinfo/python-list
