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

References (8 earlier) <mailman.8382.1395463877.18130.python-list@python.org> <9edb4ea0-5faf-4369-8021-48afa9800a34@googlegroups.com> <op.xc5fr8pn5079vu@gnudebeest> <mailman.8412.1395542839.18130.python-list@python.org> <83b9f241-9b0a-4e81-8829-e1726c509471@googlegroups.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2014-03-22 21:47 -0600
Subject Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list)
Newsgroups comp.lang.python
Message-ID <mailman.8413.1395546511.18130.python-list@python.org> (permalink)

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On Sat, Mar 22, 2014 at 9:16 PM, Rustom Mody <rustompmody@gmail.com> wrote:
> [I am not completely sure whether the following can be proved/is true]
>
> 1. One can change lambda's closure rules which would amount to
> "significant complexity for relatively little gain"
>
> 2. One can change comprehension rules to not reassign to the
> running comprehension running varible but to rebind, using a recursive
> function as the simulation of the comprehension rather than a for loop
>
> 3. 2 is semantically equivalent to 1

Well, if you accept that 1) amounts to significant complexity for
relatively little gain, and if 2) is semantically equivalent to 1),
then it follows that 2) also amounts to significant complexity for
relatively little gain.  My statement was in regard to the complexity
of the language, not the implementation of the language.

>    - trivially for normal (ie non-lambda containing) expressions
>    - and also for lambda containing expressions if your
>      default-argument trick is implemented by the python compiler
>      [This is the claim I am not completely sure of and would love to hear
>      of/if counter examples]

The disadvantage of the default argument trick is that it does modify
the function's signature, by adding an extra argument with a default,
so they're not entirely equivalent.

> Assuming its true:
>
> One *semantically specifies* a comprehension with a recursive function,
> not a for loop

The problem with this is a cognitive one.  The comprehension *looks
like* a for loop, not a recursive function.  It is natural to reason
about it as if it were a for loop, not a recursive function.  This is
that added complexity I was talking about.

> A vanilla python programmer need not know anything about this any
> more than a vanilla C programmer knows about
> - strength reduction
> - code hoisting
> - loop unrolling
> etc
>
> that goes on inside an optimizing C compiler

Until they go to unroll their comprehension into a for loop because
they need to add some imperative construct to it, and their code
breaks as a result.  From there you'll get the programmers who will
add functions with side effects to their comprehensions because they
want the comprehension binding behavior while still performing
imperative tasks within the loop.

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Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) vasudevram <vasudevram@gmail.com> - 2014-03-21 13:42 -0700
  Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-21 13:54 -0700
    Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) vasudevram <vasudevram@gmail.com> - 2014-03-21 13:56 -0700
      Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-21 14:09 -0700
        Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-21 15:30 -0600
          Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-21 19:06 -0700
            Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-22 13:41 +1100
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-21 21:39 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-22 15:51 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-21 22:26 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-23 00:32 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-22 20:46 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-22 20:16 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-22 21:47 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-24 02:35 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-24 14:27 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-23 21:14 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-24 16:04 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-24 14:32 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-21 22:48 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-21 23:51 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-22 09:46 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 00:52 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-24 03:03 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-24 11:55 +0200
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-24 22:49 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-24 14:36 +0200
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-24 23:53 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-24 14:39 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-24 15:22 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-24 14:21 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-24 14:04 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 09:00 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 06:12 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-24 13:42 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 06:57 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 05:28 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 16:43 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-24 11:24 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 16:43 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-25 00:43 +0200
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 18:56 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 11:11 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 19:16 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 11:28 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-25 00:32 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 19:50 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-03-24 21:31 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 12:41 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 06:28 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-03-24 21:20 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 21:39 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 06:52 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) alex23 <wuwei23@gmail.com> - 2014-03-26 16:35 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-27 10:44 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-28 03:10 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-27 11:37 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-28 03:48 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-27 15:54 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-28 08:42 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-27 17:14 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-28 13:24 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-27 19:46 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-28 14:06 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-27 20:20 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-27 17:14 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-28 04:45 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-28 00:34 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 16:18 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-29 13:45 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-29 03:08 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 22:18 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-29 14:45 +1100
                Keyboard standards (was: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list)) Ben Finney <ben+python@benfinney.id.au> - 2014-03-29 15:18 +1100
                Re: Keyboard standards Mark H Harris <harrismh777@gmail.com> - 2014-03-28 23:26 -0500
                Re: Keyboard standards Chris Angelico <rosuav@gmail.com> - 2014-03-29 16:13 +1100
                Re: Keyboard standards Mark H Harris <harrismh777@gmail.com> - 2014-03-29 00:40 -0500
                Re: Keyboard standards Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-29 04:02 -0600
                Re: Keyboard standards Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-29 16:03 +0000
                Re: Keyboard standards Larry Hudson <orgnut@yahoo.com> - 2014-03-29 12:27 -0700
                Re: Keyboard standards Michael Torrie <torriem@gmail.com> - 2014-03-29 13:41 -0600
                Re: Keyboard standards Larry Hudson <orgnut@yahoo.com> - 2014-03-29 23:53 -0700
                Re: Keyboard standards Dave Angel <davea@davea.name> - 2014-03-29 17:26 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-29 03:51 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 23:07 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 23:16 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 23:21 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-29 15:48 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 23:40 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-29 16:08 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-28 22:21 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-29 00:51 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-29 17:03 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-29 03:21 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-29 15:45 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-30 00:52 -0500
                OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-30 06:31 +0000
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Chris Angelico <rosuav@gmail.com> - 2014-03-30 17:43 +1100
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Mark H Harris <harrismh777@gmail.com> - 2014-03-30 01:48 -0500
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-30 10:35 +0000
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Chris Angelico <rosuav@gmail.com> - 2014-03-30 23:03 +1100
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Mark H Harris <harrismh777@gmail.com> - 2014-03-30 23:29 -0500
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Mark H Harris <harrismh777@gmail.com> - 2014-03-30 23:57 -0500
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Chris Angelico <rosuav@gmail.com> - 2014-03-31 16:05 +1100
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Mark H Harris <harrismh777@gmail.com> - 2014-03-31 00:33 -0500
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-31 09:31 +0100
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Mark H Harris <harrismh777@gmail.com> - 2014-03-31 00:23 -0500
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Chris Angelico <rosuav@gmail.com> - 2014-03-31 16:44 +1100
                Re: OFF TOPIC Spanish in the USA Marko Rauhamaa <marko@pacujo.net> - 2014-03-31 11:39 +0300
                Re: OFF TOPIC Spanish in the USA Ned Batchelder <ned@nedbatchelder.com> - 2014-03-31 07:33 -0400
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-03-31 08:41 -0400
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Chris Angelico <rosuav@gmail.com> - 2014-04-01 00:04 +1100
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-31 21:47 +0100
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Terry Reedy <tjreedy@udel.edu> - 2014-03-31 18:06 -0400
                Re: OFF TOPIC Spanish in the USA [was Re: Explanation of this Python language feature?] Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-03-31 20:03 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Larry Hudson <orgnut@yahoo.com> - 2014-03-30 00:32 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-30 10:44 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-30 23:57 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) MRAB <python@mrabarnett.plus.com> - 2014-03-31 00:20 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Grant Edwards <invalid@invalid.invalid> - 2014-03-31 14:14 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Walter Hurry <walterhurry@gmail.com> - 2014-03-31 00:39 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Roy Smith <roy@panix.com> - 2014-03-30 08:08 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-30 15:22 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-30 10:03 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-31 01:08 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-31 17:47 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ben Finney <ben+python@benfinney.id.au> - 2014-03-31 17:53 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-31 00:36 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) wxjmfauth@gmail.com - 2014-03-31 01:32 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Roy Smith <roy@panix.com> - 2014-03-31 08:16 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-31 21:46 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-01 16:26 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-02 08:49 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-01 18:18 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-04-01 18:33 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-03 11:38 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-03 20:14 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-03 11:40 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-03 13:55 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-03 22:43 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-03 22:12 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-04 09:43 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-03 21:09 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-04 07:52 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-04 19:11 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-04 02:13 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-04 10:08 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-04 11:01 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-05 00:20 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) alex23 <wuwei23@gmail.com> - 2014-04-04 12:07 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-03 21:29 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-04 09:20 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 15:58 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-04 15:40 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-04 22:50 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 17:07 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 09:39 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 17:52 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 09:57 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-05 00:16 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 23:10 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 15:40 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 00:11 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-04 23:02 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 00:37 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ben Finney <ben+python@benfinney.id.au> - 2014-04-05 17:01 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 01:48 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 18:08 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 01:48 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-04 23:07 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 17:52 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-04-04 23:04 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 23:18 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 14:22 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-04-05 00:10 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 17:07 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-05 00:00 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 12:51 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-04 23:31 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 15:49 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 00:23 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 16:55 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 00:23 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-04 20:42 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 00:02 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 16:24 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ben Finney <ben+python@benfinney.id.au> - 2014-04-05 16:29 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 16:57 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-04 23:59 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-05 18:10 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-05 10:19 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-04-05 07:20 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Roy Smith <roy@panix.com> - 2014-04-05 10:28 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-04 09:53 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-04 03:24 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-04-04 06:43 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 22:59 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 23:59 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-06 12:05 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-06 16:52 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-06 10:31 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-07 03:54 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-06 11:13 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-07 04:46 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-06 19:32 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-07 20:33 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) MRAB <python@mrabarnett.plus.com> - 2014-04-08 02:52 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-08 13:02 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-04-08 08:21 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) alex23 <wuwei23@gmail.com> - 2014-04-09 10:39 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-09 12:26 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-08 03:53 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-07 03:27 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-06 23:23 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-06 19:09 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-04-07 04:14 +1000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-06 23:10 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-06 21:56 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-06 23:48 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-04-06 20:45 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-04-06 18:54 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-04-07 05:10 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-07 08:14 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-04-08 09:03 +0200
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-04-07 07:54 +0300
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-07 12:19 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-04-05 23:01 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-28 23:10 -0700
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-29 00:51 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-29 17:53 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-30 01:22 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-30 16:22 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-29 13:39 +0200
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Roy Smith <roy@panix.com> - 2014-03-29 07:53 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-29 13:59 +0200
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Gene Heskett <gheskett@wdtv.com> - 2014-03-29 13:48 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-30 00:57 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Gene Heskett <gheskett@wdtv.com> - 2014-03-29 13:46 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 10:01 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 18:44 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 10:57 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 06:16 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-24 17:58 -0600
                Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 20:00 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 22:15 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 14:17 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 22:25 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 22:28 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Roy Smith <roy@panix.com> - 2014-03-24 23:29 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 14:51 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 22:59 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 21:08 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 15:29 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 22:00 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 16:08 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 00:14 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 22:23 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 16:31 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 16:27 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 00:34 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 22:42 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 00:47 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 16:54 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 16:48 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 00:56 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Roy Smith <roy@panix.com> - 2014-03-25 08:36 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 05:53 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 14:43 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 06:52 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-26 00:56 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 07:08 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-25 14:23 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 08:19 -0700
                Re: Time we switched to unicode? (was Explanation of this Python   language feature?) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-26 09:33 +1300
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 11:58 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-03-25 20:02 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 01:01 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 17:19 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 07:03 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 18:12 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-03-25 20:05 -0400
                Re: Time we switched to unicode? Marko Rauhamaa <marko@pacujo.net> - 2014-03-25 10:05 +0200
                Re: Time we switched to unicode? Chris Angelico <rosuav@gmail.com> - 2014-03-25 19:23 +1100
                Re: Time we switched to unicode? Steven D'Aprano <steve@pearwood.info> - 2014-03-25 08:59 +0000
                Re: Time we switched to unicode? Chris Angelico <rosuav@gmail.com> - 2014-03-25 20:03 +1100
                Re: Time we switched to unicode? Chris “Kwpolska” Warrick <kwpolska@gmail.com> - 2014-03-25 18:24 +0100
                Re: Time we switched to unicode? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-26 01:01 +0000
                Re: Time we switched to unicode? Chris Angelico <rosuav@gmail.com> - 2014-03-26 06:40 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 22:28 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 00:36 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 06:07 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-25 01:48 -0500
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 10:43 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 20:54 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 11:38 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-25 11:14 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 12:46 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 05:09 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-25 15:18 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Terry Reedy <tjreedy@udel.edu> - 2014-03-25 19:55 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-26 00:12 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Terry Reedy <tjreedy@udel.edu> - 2014-03-26 00:30 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 21:56 -0700
                Delayed evaluation of expressions [was Re: Time we switched to unicode?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-26 16:05 +0000
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Rustom Mody <rustompmody@gmail.com> - 2014-03-26 10:32 -0700
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Rustom Mody <rustompmody@gmail.com> - 2014-03-26 10:57 -0700
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Chris Angelico <rosuav@gmail.com> - 2014-03-27 09:24 +1100
                Re: Delayed evaluation of expressions Marko Rauhamaa <marko@pacujo.net> - 2014-03-27 00:45 +0200
                Re: Delayed evaluation of expressions Rustom Mody <rustompmody@gmail.com> - 2014-03-26 22:02 -0700
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-26 23:43 +0000
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Rustom Mody <rustompmody@gmail.com> - 2014-03-26 18:59 -0700
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Terry Reedy <tjreedy@udel.edu> - 2014-03-26 20:44 -0400
                Re: Delayed evaluation of expressions [was Re: Time we switched to unicode?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-27 02:16 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Roy Smith <roy@panix.com> - 2014-03-25 08:35 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-26 00:13 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-25 14:13 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-26 01:37 +1100
                Re: Time we switched to unicode? (was Explanation of this Python   language feature?) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-26 09:58 +1300
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-03-25 20:10 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-26 09:21 +1300
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Larry Martell <larry.martell@gmail.com> - 2014-03-25 16:31 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-25 21:22 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 15:19 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 06:04 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 17:26 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Roy Smith <roy@panix.com> - 2014-03-25 08:24 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-03-25 19:44 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 20:43 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 14:57 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 05:47 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 23:10 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 17:33 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 23:41 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 17:50 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Terry Reedy <tjreedy@udel.edu> - 2014-03-25 18:39 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 17:12 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 23:35 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 17:45 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 23:52 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-27 01:16 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-27 12:26 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 20:44 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-24 20:56 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 15:14 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 07:03 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 00:22 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 11:24 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Roy Smith <roy@panix.com> - 2014-03-25 08:21 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-25 13:36 +0000
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 15:01 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Terry Reedy <tjreedy@udel.edu> - 2014-03-25 22:10 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-26 13:39 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-27 01:32 -0600
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-27 01:43 -0600
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 22:12 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 13:07 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-25 23:45 +1100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Rustom Mody <rustompmody@gmail.com> - 2014-03-25 06:07 -0700
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Chris Angelico <rosuav@gmail.com> - 2014-03-26 00:50 +1100
                Re: Time we switched to unicode? (was Explanation of this Python   language feature?) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-26 09:37 +1300
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-25 14:07 +0100
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Terry Reedy <tjreedy@udel.edu> - 2014-03-25 20:24 -0400
                Re: Time we switched to unicode? (was Explanation of this Python language feature?) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-26 10:22 +0100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-03-25 06:20 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve@pearwood.info> - 2014-03-24 09:49 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-24 22:21 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 14:47 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-25 01:45 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 13:17 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-25 02:06 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 22:48 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-24 09:58 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 13:58 -0500
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-24 19:13 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-24 13:12 -0600
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 06:22 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-24 22:58 +0000
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 10:07 +1100
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Terry Reedy <tjreedy@udel.edu> - 2014-03-24 21:04 -0400
                Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-25 06:45 +1100
            Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-22 04:47 +0000
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Chris Angelico <rosuav@gmail.com> - 2014-03-22 16:05 +1100
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-22 12:24 +0200
            Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Ian Kelly <ian.g.kelly@gmail.com> - 2014-03-22 03:09 -0600
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-22 12:30 +0200
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-22 10:16 -0700
            Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-22 10:40 +0000
            Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-22 17:57 +0000
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Marko Rauhamaa <marko@pacujo.net> - 2014-03-22 20:40 +0200
              Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Rustom Mody <rustompmody@gmail.com> - 2014-03-22 11:42 -0700
          Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) 88888 Dihedral <dihedral88888@gmail.com> - 2014-03-25 03:17 -0700
        Re: Explanation of this Python language feature? [x for x in x for x   in x] (to flatten a nested list) Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-22 10:34 +1300
  Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) vasudevram <vasudevram@gmail.com> - 2014-03-22 13:59 -0700
    Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Mark H Harris <harrismh777@gmail.com> - 2014-03-24 20:56 -0500
  Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Dan Stromberg <drsalists@gmail.com> - 2014-03-27 16:45 -0700
    How to flatten a list of lists was (Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 17:00 -0500
    How to flatten a list of lists was (Explanation of this Python language feature?) Mark H Harris <harrismh777@gmail.com> - 2014-03-28 17:00 -0500
    To flatten a nested list was (Explanation of this Python language feature? [x for x in x for x in x] Mark H Harris <harrismh777@gmail.com> - 2014-03-28 17:05 -0500
      Re: To flatten a nested list was (Explanation of this Python language feature? [x for x in x for x in x] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-29 02:31 +0000
        Re: To flatten a nested list was (Explanation of this Python language feature? [x for x in x for x in x] Mark H Harris <harrismh777@gmail.com> - 2014-03-28 22:33 -0500
    To flatten a nested list was (Explanation of this Python language feature? [x for x in x for x in x] Mark H Harris <harrismh777@gmail.com> - 2014-03-28 17:05 -0500

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