Re: Adapt bash readline operate-and-get-next

References	(8 earlier) <mailman.12130.1405958264.18130.python-list@python.org> <53cd47fc$0$6574$c3e8da3$5496439d@news.astraweb.com> <87egwdiqfq.fsf_-_@nautilus.nautilus> <CANc-5Uy6GDtJO+PR2UtOiS2qM1yLzox7h4WQ4009NUfeR2oOcw@mail.gmail.com> <87bnrgooli.fsf@nautilus.nautilus>
Date	2014-08-19 07:45 -0500
Subject	Re: Adapt bash readline operate-and-get-next
From	Skip Montanaro <skip@pobox.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.13145.1408452671.18130.python-list@python.org> (permalink)

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On Tue, Aug 19, 2014 at 3:44 AM, Lele Gaifax <lele@metapensiero.it> wrote:
>> Does your position in the history disappear if you
>> operate_and_get_next(), then modify the next recalled input line?
>
> Not sure what you mean with "disappear": basically o-a-g-n "accepts" the
> current line (that is, "executes" it, and this means it gets pushed at
> the top of history), regardless you edited or not, then fetches the
> following input line from the history and presents it to you.
>
> Given these lines in the history:
>
>     >>> a=10
>     >>> a-=1
>     >>> print(a)
>     9

Suppose you have the above, as you indicated. Ctl-P your way back to
the a=10 line. Press Ctl-O. It executes that assignment and fills the
input buffer with "a-=1". Instead of just pressing Ctl-O, type a "1"
first, changing the input buffer to "a-=11". *Now* press Ctl-O. I
assume it executes that statement. You've edited the line, however.
Does it present you with the print statement or not?

I guess I could have answered my own question using bash:

firefly% a=10
firefly% a='a'
firefly% echo $a
a
firefly% a=10
firefly% a='b'
firefly% echo $a
b

The second batch of three lines were executed from history with this
key sequence:

Ctl-P Ctl-P Ctl-P Ctl-O DEL DEL b ' Ctl-O RET

That's pretty cool. Even if I never live to see it in Python (I'm
still using 2.7), I will definitely start using it in bash. :-)

Skip

Thread

PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Rick Johnson <rantingrickjohnson@gmail.com> - 2014-07-20 14:14 -0700
  Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-20 22:36 +0100
  Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Irmen de Jong <irmen.NOSPAM@xs4all.nl> - 2014-07-20 23:40 +0200
    Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Rick Johnson <rantingrickjohnson@gmail.com> - 2014-07-20 15:44 -0700
      Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-21 11:02 +1000
        Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Rick Johnson <rantingrickjohnson@gmail.com> - 2014-07-20 19:06 -0700
          Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Tim Chase <python.list@tim.thechases.com> - 2014-07-20 21:30 -0500
          Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-21 12:38 +1000
            Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Grant Edwards <invalid@invalid.invalid> - 2014-07-21 14:27 +0000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Shiyao Ma <i@introo.me> - 2014-07-21 22:40 +0800
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Grant Edwards <invalid@invalid.invalid> - 2014-07-21 16:51 +0000
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Grant Edwards <invalid@invalid.invalid> - 2014-07-21 16:57 +0000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-22 00:48 +1000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-22 00:51 +1000
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Grant Edwards <invalid@invalid.invalid> - 2014-07-21 16:55 +0000
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-22 03:56 +1000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Monte Milanuk <memilanuk@invalid.com> - 2014-07-21 14:55 +0000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-21 16:19 +0100
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Grant Edwards <invalid@invalid.invalid> - 2014-07-21 16:56 +0000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-22 01:27 +1000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Lele Gaifax <lele@metapensiero.it> - 2014-07-21 17:57 +0200
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-21 17:03 +0000
                Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Lele Gaifax <lele@metapensiero.it> - 2014-07-21 19:40 +0200
                Adapt bash readline operate-and-get-next Lele Gaifax <lele@metapensiero.it> - 2014-08-18 20:49 +0200
                Re: Adapt bash readline operate-and-get-next Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-19 10:17 +1000
                Re: Adapt bash readline operate-and-get-next Chris Angelico <rosuav@gmail.com> - 2014-08-19 10:32 +1000
                Re: Adapt bash readline operate-and-get-next Lele Gaifax <lele@metapensiero.it> - 2014-08-19 10:49 +0200
                Re: Adapt bash readline operate-and-get-next Lele Gaifax <lele@metapensiero.it> - 2014-08-19 11:51 +0200
                Re: Adapt bash readline operate-and-get-next Skip Montanaro <skip@pobox.com> - 2014-08-18 14:06 -0500
                Re: Adapt bash readline operate-and-get-next Lele Gaifax <lele@metapensiero.it> - 2014-08-19 10:44 +0200
                Re: Adapt bash readline operate-and-get-next Skip Montanaro <skip@pobox.com> - 2014-08-19 07:45 -0500
                Re: Adapt bash readline operate-and-get-next Lele Gaifax <lele@metapensiero.it> - 2014-08-19 15:10 +0200
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-22 02:05 +1000
              Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Terry Reedy <tjreedy@udel.edu> - 2014-07-21 15:16 -0400
            RE: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! "Coll-Barth, Michael" <Michael.Coll-Barth@VerizonWireless.com> - 2014-07-21 10:51 -0400
          Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-21 03:45 +0100
          Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Terry Reedy <tjreedy@udel.edu> - 2014-07-20 23:05 -0400
          Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Chris Angelico <rosuav@gmail.com> - 2014-07-21 13:09 +1000
          Re: PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"! Martin S <shieldfire@gmail.com> - 2014-07-21 09:51 +0200
    Re: Tabbed IDLE (was PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"!) Tim Chase <python.list@tim.thechases.com> - 2014-07-20 19:56 -0500
    Re: Tabbed IDLE (was PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"!) Chris Angelico <rosuav@gmail.com> - 2014-07-21 11:04 +1000
    Re: Tabbed IDLE (was PyWart(2.7.8) IDLE is more buggy than "Joe's apartment"!) Tim Chase <tim@thechases.com> - 2014-07-20 19:55 -0500
  Idle open file dialogs (was ...) Terry Reedy <tjreedy@udel.edu> - 2014-07-20 22:59 -0400

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