Re: [orca-list] Exception: SettingsManager._loadBackend failed

[John Frankish <john frankish outlook com>]

> > When I try to start orca-3.21.92 I get this
> >
> > $ orca
> > Traceback (most recent call last):
> >    File "/usr/local/bin/orca", line 44, in <module>
> >      from orca import orca
> >    File "/usr/local/lib/python3.3/site-packages/orca/orca.py", line 
> > 78, in <module>
> >      from . import settings_manager
> >    File 
> > "/usr/local/lib/python3.3/site-packages/orca/settings_manager.py",
> > line 568, in <module>
> >      _manager = SettingsManager()
> >    File 
> > "/usr/local/lib/python3.3/site-packages/orca/settings_manager.py",
> > line 111, in __init__
> >      raise Exception('SettingsManager._loadBackend failed.')
> > Exception: SettingsManager._loadBackend failed.
> >
> > I believe orca uses a json backend for settings by default - if I 
> > bring up a
> > python3 console I can import json without errors.
> >
> > I guess I'm missing something, but what?
> Joanie is on a business trip so she may not be able to look into this
immediatelly.
> In the mean time, I'll try to come up with some steps you might follow in
order to troubleshoot this.
> You are correct orca stores its settings in json encoded file.
> The exception you have posted indicates there is a problem with a file
> /usr/local/lib/python3.3/site-packages/orca/backends/json_backend.py
> or there is something else missing when trying to import that file.
>
> Note orca even did not tried to initialize that module it just tried to
import it.
> You might like to run these three lines one after the other to find out
why the module can't be imported via python.
> So first start python by just running python in the terminal.
> Make sure it's python3.3.
>
> Now copy and paste each line at a time and observe the python output
> where it breaks and what you might be missing.
> # start copying line at a time below
> import importlib
> import orca
> importlib.import_module('.backends.json_backend', 'orca') # don't copy
this and below
> Still if there is nothing usefull printed, that json_backend module
imports additional modules.
> You can test if you can import them all.
>
> from json import load, dump
> import os
> from orca import settings, acss
Thanks for the suggestions.

It looks like the cause of the problem was that I had not compiled
speech-dispatcher against espeak-ng.
Once I went back and did this, the initial problem disappeared.

After figuring out that orca has a runtime dependency on gst-plugins-good,
procps and (maybe) dbus-python and after updating pyatspi from 3.10 -> 3.18,
orca works :)

Thanks again
John