[Pythonmac-SIG] readline support for OS X Leopard

[Noah Gift]

Brian,

Thanks, I was just considering doing this myself.  I would be happy to help
document this if there is a suitable wiki for it, once a clear path gets
figured out.  If you do google searches for readline os x, or ipython, etc,
you will tons, of people who have had this problem for quite some time.
Getting clear documentation for OS X users will help the IPython cause
greatly.

I know in the book Jeremy Jones and I are writing, we covering IPython quite
a bit, as we think it is the preferred tool for sysadmins to write code in.
This is slightly off topic, but the doctest inclusion is the icing on the
cake as far as I am concerned with IPython.

Noah

On 10/22/07, Brian Granger <ellisonbg.net at gmail.com> wrote:
>
> I am forwarding this to the ipython-dev list.  A number of the core
> ipython dev's use OS X, so we will surely jump on this one as soon as
> we get our hands on Leopard.  This (libedit support) is great news as
> it has been one of the main problems with the built-in Python on OS X
> for a long time.
>
> Cheers,
>
> Brian
>
> On 10/22/07, Noah Gift <noah.gift at gmail.com> wrote:
> > Edward,
> >
> > Thanks for the information.  Do you know of a way to get IPython to use
> > edline instead?  IPython is growing in popularity for Python
> programmers,
> > and it seems like getting a way forward that works with edline makes
> sense,
> > or maybe I am wrong and people will need to just manually install
> readline
> > themselves.
> >
> > Noah
> >
> >
> > On 10/22/07, Edward Moy <emoy at apple.com> wrote:
> > >
> > >
> > >
> > > On Oct 21, 2007, at 10:51 PM, Noah Gift wrote:
> > >
> > > I have been getting ready for the official leopard release in a few
> days,
> > and have been a bit worried about readline support.  I forgot what I did
> to
> > get it to work for IPython, which I absolutely cannot live without
> anymore.
> > Is there a plan for a Leopard binary that fixes readline, or can I help
> > someone prepare some documentation on getting readline working
> properly.  I
> > don't have a lot of time during the next couple of weeks to get into
> compile
> > hell, but if someone has any easy fix to get readline to work, I would
> > greatly appreciate it.
> > >
> > > The installed version of python on Leopard will actually have readline
> > support turned on by default, but it uses the EditLine (libedit)
> library,
> > not the GNU Readline (due to licensing reasons).  While functionally
> > equivalent, the command syntax is different.  From the python(1) man
> page:
> > >
> > >
> > >
> > > INTERACTIVE INPUT EDITING AND HISTORY SUBSTITUTION
> > >        The Python inteterpreter supports editing of the current input
> line
> > and
> > >        history substitution, similar to facilities found in the Korn
> shell
> > and
> > >        the  GNU  Bash shell.  However, rather than being implemented
> using
> > the
> > >        GNU Readline library, this Python interpreter  uses  the  BSD
> > EditLine
> > >        library editline(3) with a GNU Readline emulation layer.
> > >
> > >
> > >        The  readline  module  provides the access to the EditLine
> library,
> > but
> > >        there are a few major differences compared to a traditional
> > implementa-
> > >        tion  using  the  Readline  library.   The command language
> used in
> > the
> > >        preference files is that of EditLine, as described in editrc(5)
> and
> > not
> > >        that   used  by  the  Readline  library.
> This  also  means  that
> > the
> > >        parse_and_bind() routines uses EditLine commands.  And  the
> > preference
> > >        file itself is ~/.editrc instead of ~/.inputrc.
> > >
> > >
> > >        For  example,  the rlcompleter module, which defines a
> completion
> > func-
> > >        tion for the  readline  modules,  works  correctly  with  the
> > EditLine
> > >        libraries, but needs to be initialized somewhat differently:
> > >
> > >
> > >               import rlcompleter
> > >               import readline
> > >               readline.parse_and_bind ("bind ^I rl_complete")
> > >
> > >
> > >        For vi mode, one needs:
> > >
> > >
> > >               readline.parse_and_bind("bind -v")
> > >
> > >
> > >
> > >
> > >
> > >
> >
> --------------------------------------------------------------------------
> > >
> > > Edward Moy
> > >
> > > Apple Computer, Inc.
> > >
> > > emoy at apple.com
> > >
> >
> >
> > _______________________________________________
> > Pythonmac-SIG maillist  -  Pythonmac-SIG at python.org
> > http://mail.python.org/mailman/listinfo/pythonmac-sig
> >
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.python.org/pipermail/pythonmac-sig/attachments/20071022/63373ee4/attachment-0001.htm