Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list)

[Steven D'Aprano]

On Sat, 29 Mar 2014 13:45:12 +1100, Chris Angelico wrote:

> Considering that we have ten fingers, having 1114112 keys would be quite
> impractical. The smallest number of keys to render that many characters
> would probably be 21, but it'd be toggling data into a computer, rather
> than typing; *every* character would require holding down a good number
> of keys. (Or you could go the other way and have exactly two keys: 1 and
> 0. Press either 21 times to enter a single character.)

http://like-a-boss.org/wp-content/uploads/2011/10/supercoder.jpg



-- 
Steven D'Aprano
http://import-that.dreamwidth.org/