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

[Peter Vágner <pvdeejay gmail com>]

Hello,

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

I am sorry I haven't got a more straight forward solution, hopefully 
this will at least serve you as a good hint.

Let us know how you get on with this and ask more if you need.

Greetings

Peter



On 18.09.2016 at 15:57 John Frankish wrote:
> 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?
>
> Regards
> John
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