-color settings ignored whitin ipdb

[brickZA]

I originally reported this issue as an ipython bug, but it looks like may be possible to fix it by making changes to ipdb. See ipython/ipython#279

[gotcha]

I'll take care of this asap.

[gotcha]

In ipython/ipython#279, you state :

OK. So if I do ipape.get().options.colors in a straight ipython shell, it gives the right answers. Then I instrumented ipdb to print the
same info, and it always gave Linux. Then I saw the following lines in ipdb/init.py:

from IPython.Shell import IPShell
...
shell = IPShell(argv=[''])

By commenting out the the last line, the correct info is obtained by ipdb. Presumably a new ipython shell with default options is
created by the IPShell() statement. Why would ipdb do this? A quick smoke test seems to indicate that ipdb works OK without it.

P.S. the ipdb file I have matches this one:
https://github.com/gotcha/ipdb/blob/master/ipdb/__init__.py

[gotcha]

As soon as I commented the line you mention,

I got

Traceback (most recent call last):
  File "manual_test.py", line 11, in <module>
    main()
  File "manual_test.py", line 7, in main
    import ipdb; ipdb.set_trace()
  File "/Users/gotcha/tmp/ipdbrel/lib/python2.6/site-packages/ipdb/__init__.py", line 11, in set_trace
    def_colors = ip.options.colors
AttributeError: 'NoneType' object has no attribute 'options'

This made me think that I do not use ipdb the same way as you do.

I guess that you are actually using ipdb from inside IPython.

If this is correct, my last commit should fix the issue.

Can you confirm ?

[brickZA]

Indeed, I run it from within IPython. It also seems to work correctly with your latest revision.