[IPython-dev] Fwd: [Pythonmac-SIG] readline support for OS X Leopard
bwaters at nrao.edu
Fri Oct 26 17:06:46 EDT 2007
If someone can point me in the right direction I'd love to solve this
The Python that ships with Leopard uses libedit, which includes a
It seems to work, but I can't get the tab-completion to work in IPython.
ANSI color works fine. History navigation works fine. Command-line
editing works fine.
No tab completion.
I can enter the lines one at a time at a Python console, everything
seems to work. readline is imported. But I don't get the actual tab
Got it to work on Tiger (OS X 10.4.x) no problem.
On Oct 22, 2007, at 7:48 PM, Brian Granger wrote:
> This is a heads up for ipython devs who use OS X. I guess the builtin
> python on Leopard will have a working readline module, but it won't
> use readline underneath the hood. Instead is will use EditLine
> Once Leopard is out in the public, we can investigate how this will
> play with ipython.
> ---------- Forwarded message ----------
> From: Edward Moy <emoy at apple.com>
> Date: Oct 22, 2007 12:19 PM
> Subject: Re: [Pythonmac-SIG] readline support for OS X Leopard
> To: Noah Gift <noah.gift at gmail.com>
> Cc: PythonMac mac <pythonmac-sig at python.org>
> 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
> 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
> 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
> 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
> 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
> IPython-dev mailing list
> IPython-dev at scipy.org
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