Re: [orca-list] Blind debugging in Ubuntu

[Bill Cox <waywardgeek gmail com>]

Hi, Jon.  I was able to get Orca running in a console.  It does have
the problem you describe in that switching back and forth from Gnome
to a console sends events to Orca.  However, it's handy when you just
have one machine and want to do a quick pdb.set_trace() in Orca code.

What you have to do is set two environment variables.  The first is
DISPLAY, so in a console execute:

export DISPLAY=:0.0

The second variable is DBUS_SESSION_BUS_ADDRESS.  What I did was in a
gnome terminal:

env | grep aux DBUS > ~/dbus_var

Then, I switched to a console, and typed:

export `< ~/dbus_var`

Then I just type 'orca --replace' in the console.

BIll

On Tue, May 25, 2010 at 11:22 AM, Jon <j orcauser googlemail com> wrote:
> Hi,
>
> The way i have managed to get it to work is:
>
> 1. gnome terminal
> 2. screen -x -R
> 3. export DISPLAY=:0
> 4. orca
>
> Then from another machine:
> 1. ssh into first machine.
> 2. screen -x -R # to reconnect to existing screen session
>
> find out what is happening.
> try to fix.
> iterate.
>
> The reason why i use a second machine, is that the action of pressing any
> keys and switching to another console, runs more orca code.
>
> A while back i tried to start using Accerciser, again, no info/tutorial
> was available, and after a few hrs of getting no where, i decided to get
> visual assistance to give me the information that i required.
>
> Apparently one could use it from ipython, but again no tutorial.
>
> Yes i am blind.
>
> Hope this helps somewhat
>
> -Jon
> On Tue 25/05/2010 at 11:12:37, Bill Cox wrote:
> > There are some blind programmers who would like to help debug things.
> > Not being blind, I have not figured out the tricks.  First, is
> > Accerciser reasonably accessible?  A brilliant blind programmer I knew
> > tried it over the weekend and could not get anywhere.  Is there any
> > tutorial for the blind?
> >
> > Second, it would be great to be able to run Orca in a console while
> > running speakup.  In particular, if we put a pdb.set_trace() in Orca
> > code, then obviously Orca stops reading anything in a gnome-terminal.
> > However, if we can switch to the console, we could single-step and so
> > on.  In Ubuntu Lucid, after setting DISPLAY=:0.0, typing 'orca
> > --repalce' on a console screen results in this error:
> >
> > ** (orca:8811): WARNING **: Trying to register gtype 'WnckWindowState'
> > as enum when in fact it is of type 'GFlags'
> >
> > ** (orca:8811): WARNING **: Trying to register gtype
> > 'WnckWindowActions' as enum when in fact it is of type 'GFlags'
> >
> > ** (orca:8811): WARNING **: Trying to register gtype
> > 'WnckWindowMoveResizeMask' as enum when in fact it is of type 'GFlags'
> > Traceback (most recent call last):
> >   File "<string>", line 1, in <module>
> >   File "/usr/lib/pymodules/python2.6/orca/orca.py", line 1747, in main
> >     init(pyatspi.Registry)
> >   File "/usr/lib/pymodules/python2.6/orca/orca.py", line 1266, in init
> >     registry.registerEventListener(_onChildrenChanged,
> >   File "/usr/lib/python2.6/dist-packages/pyatspi/registry.py", line
> > 331, in __getattribute__
> >     raise RuntimeError('Could not find or activate registry')
> > RuntimeError: Could not find or activate registry
> >
> > Any ideas how to make it work?  I really want to start getting blind
> > programmers involved, and these two issues seem like some pretty basic
> > prerequisites.
> >
> > Thanks,
> > Bill
> > _______________________________________________
> > orca-list mailing list
> > orca-list gnome org
> > http://mail.gnome.org/mailman/listinfo/orca-list
> > Visit http://live.gnome.org/Orca for more information on Orca.
> > The manual is at http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> > The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> > Netiquette Guidelines are at http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> > Log bugs and feature requests at http://bugzilla.gnome.org
> > Find out how to help at http://live.gnome.org/Orca/HowCanIHelp
> _______________________________________________
> orca-list mailing list
> orca-list gnome org
> http://mail.gnome.org/mailman/listinfo/orca-list
> Visit http://live.gnome.org/Orca for more information on Orca.
> The manual is at http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> Netiquette Guidelines are at http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> Log bugs and feature requests at http://bugzilla.gnome.org
> Find out how to help at http://live.gnome.org/Orca/HowCanIHelp