IPython console run code lines not being saved in preferences

[dstrozzi]

Description of your problem

I am running Spyder 2.3.9 on Windows 7, using the Anaconda Python 3.5.2 distribution. Anaconda is up to date on my system. I can't get Spyder to remember "run code" preference for ipython console. In particular, using the Spyder gui, I click on Tools -> Preferences -> IPython console -> Startup tab. I enter something in the Run code lines: dialog, like print('hello world'). Click Apply, OK. If I go back to preferences, this box is empty. If I start an ipython console, the print statement isn't executed.

The specific problem that got me on this is setting how floating-point numbers are formatted. By default, ipython in Spyder doesn't use scientific notation until many decimal places. I wanted to add the ipython magic command '%precision %.4g'. Can't add it to run code lines dialog. Added to my ipython_config.py, works when I start a free-standing ipython from a prompt. Not in Spyder.

What steps will reproduce the problem?

1. Tools -> Preferences -> IPython console -> Startup ->
2. Enter text in Run code Lines, e.g. print('foo')
3. Click OK
4. Go back to that dialog box, Lines field is empty

Versions and main components

• Spyder Version: 2.3.9
• Python Version: 2.5.2
• Operating system: Windows 7.

Dependencies

Please go to the menu entry Help > Optional Dependencies (or
Help > Dependencies), press the button Copy to clipboard
and paste the contents below:

IPython >=1.0 : 5.0.0 (OK)
jedi >=0.8.1;<0.9.0: 0.9.0 (NOK)
matplotlib >=1.0 : 1.5.1 (OK)
pandas >=0.13.1 : 0.18.1 (OK)
pep8 >=0.6 : 1.7.0 (OK)
pyflakes >=0.6.0 : 1.2.3 (OK)
pygments >=1.6 : 2.1.3 (OK)
pylint >=0.25 : None (NOK)
qtconsole >=4.0 : 4.2.1 (OK)
rope >=0.9.2 : 0.9.4-1 (OK)
sphinx >=0.6.6 : 1.3.1 (OK)
sympy >=0.7.3 : 1.0 (OK)
zmq >=2.1.11 : 15.4.0 (OK)

[jitseniesen]

Thank you for your report. This issue is still present in the latest version. The problem is that when loading the config file, the string is eval()ed. I'm looking into it.

[ccordoba12]

@jitseniesen, the problem is settings location changed in the transition from IPython to Jupyter.

I think I already fixed this error in PR #2878 ;-)

[jitseniesen]

It looks like there several problems. I don't think your PR fixes the issue described here; I tried it the steps under "What steps will reproduce the problem?" with your branch and the issue persists. It has to do with the config system and not with the IPython plugin.

[ccordoba12]

Ok, I see. Then please go ahead and fix it :-)