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Robust readline support on OS X's builtin Python #20
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[ LP comment 1 by: Brian Granger, on 2009-04-14 21:00:17.906104+00:00 ] This is a continuing problem on OS X and we need to come up with a more robust solution! |
I made it dormant simply because it's not on our critical path, but keeping its priority to medium. It's a good candidate to promote to active once we flush the more pressing stuff. Also tagged Min for it, since it's an OSX issue, and I don't use the platform. |
Add docstring for latex_matches method
This allow the check_for_readline to *not* print its indented status line closes ipythongh-361 closes ipythongh-20
small fixes for ipython#5320
Add docstring for latex_matches method
Original Launchpad bug 254023: https://bugs.launchpad.net/ipython/+bug/254023
Reported by: seanj-xyke (Sean Jensen-Grey).
Re-edited 9/25/2008,
Short:
The bug contains a description and a solution for getting readline to work reliably on the mac. The solution outlined recommends shipping the egg for readline with ipython and installing it in site-packages. Optionally modifying the ipython.py script to contain a reference to the egg.
See below.
With a default source install of IPython 0.8.4, typing code into the ipython shell is a little frustrating since I cannot use the tab key to indent code.
Even with the -noreadline option used when starting ipython, the tab key will not emit a tab or spaces in the ipython shell.
I understand that readline support on OS X 10.5 is provided by libedit which does not have the same functionality as gnureadline.
And that by installing gnu readline I get the behavior I want.
And that there is an install guide @ http://ipython.scipy.org/moin/InstallationOSXLeopard
It would seem to me that the usability of ipython on the mac under leopard is pretty flawed due to poor readline implementation (out of the box). At least with how IPython interacts with it.
A couple possibilities to remedy this would be:
(only on darwin and if libedit was detected ...)
"""
The libedit replacement for gnu readline was detected on your mac.
IPython needs gnu readline to function optimally. Using the tab key to indent code
will not work without it.
Please install pyreadline for osx. Or modify the ipython script itself.
see, http://pypi.python.org/pypi/readline/2.5.1
"""
My new start script looks like
import sys
sys.path.insert( 0, '/Users/sean/python/readline-2.5.1-py2.5-macosx-10.5-fat.egg')
import IPython.Shell
IPython.Shell.start().mainloop()
And it works great. I just had to download the egg from pypi and add it to my sys.path, INFRONT of everything else.pur
Adding in pyreadline support on the mac would only take 360k of extra space, it would save an extra configuration step. The setup command purveyed on blogs and on the OSX install page failed with a gcc error on my machine (new leopard 10.5.2 install with latest xcode tools).
I think shipping a binary egg that only ipython used would be best solution.
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