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From: Chris Kaynor <ckaynor@zindagigames.com>
Date: Mon, 3 Dec 2012 12:10:02 -0800
Subject: Re: Conversion of List of Tuples
To: subhabangalore@gmail.com
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Xref: csiph.com comp.lang.python:34186

On Mon, Dec 3, 2012 at 11:58 AM,  <subhabangalore@gmail.com> wrote:
> Dear Group,
>
> I have a tuple of list as,
>
> tup_list=[(1,2), (3,4)]
> Now if I want to covert as a simple list,
>
> list=[1,2,3,4]
>
> how may I do that?
>
> If any one can kindly suggest? Googling didn't help much.

If you know they are always exactly two levels deep, you can use
nested loops (in comprehension form):
[item for tuple_ in list_ for item in tuple_]

That could also be written how John recommended, in three lines.

>
> Regards,
> Subhabrata.
> --
> http://mail.python.org/mailman/listinfo/python-list