On 26/03/2016 22:08, beliavsky--- via Python-list wrote:
On Saturday, March 26, 2016 at 1:02:06 PM UTC-4, Gary Herron wrote:
On 03/26/2016 09:49 AM, beliavsky--- via Python-list wrote:
I can use x[::n] to select every nth element of a list. Is there a one-liner to
get a list that excludes every nth element?
Yes:
>>> L=list(range(20))
>>> [x for i,x in enumerate(L) if i%3 != 0]
[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19]
Gary Herron
Thanks to you and others who replied. I see that enumerate is a useful function.
It is, but you may like to note that you don't have to count from zero.
The 'start' keyword can be set to anything you like.
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