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Fri Sep 22 21:05:19 CEST 2006 · https://mail.python.org/pipermail/python-dev/2006-September/068948.html

On 9/22/06, Josiah Carlson <jcarlson at uci.edu> wrote:
>
> Michael Foord <fuzzyman at voidspace.org.uk> wrote:
> >
> > Hello all,
> >
> > I have a suggestion for a new Python built in function: 'flatten'.
>
> This has been brought up many times.  I'm -1 on its inclusion, if only
> because it's a fairly simple 9-line function (at least the trivial
> version I came up with), and not all X-line functions should be in the
> standard library.  Also, while I have had need for such a function in
> the past, I have found that I haven't needed it in a few years.

I think instead of adding a flatten function perhaps we should think
about adding something like Erlang's "iolist" support. The idea is
that methods like "writelines" should be able to take nested iterators
and consume any object they find that implements the buffer protocol.

-bob

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[Python-Dev] Suggestion for a new built-in