On Oct 15, 2016 6:42 PM, "Steven D'Aprano" <st...@pearwood.info> wrote:
> doesn't make sense, it is invalid. Call it something else: the new
> "flatten" operator:
>
> [^t for t in iterable]
>
> for example, which magically adds an second invisible for-loop to your
list comps:
This thread is a lot of work to try to save 8 characters in the spelling of
`flatten(it)`. Let's just use the obvious and intuitive spelling.
We really don't need to be Perl. Folks who want to write Perl have a
perfectly good interpreter available already.
The recipes in itertools give a nice implementation:
def flatten(listOfLists):
"Flatten one level of nesting"
return chain.from_iterable(listOfLists)
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