Forum: GNU Radio WX Gui Widget Error

Hi!

I am a new GNU Radio user. I will be using it mainly for educational
purposes.


I use a legit Windows 7 installation. ( the installation was done about 
3
years ago, not a clean install). I followed step by step the 
instructions
presented here (on the code.ettus site):
http://code.ettus.com/redmine/ettus/projects/uhd/w...

I am able to start GNU Radio. I'm trying to simulate a very basic
situation: a signal generator, with the output connected to a throttle 
and
the throttle's output connected to a WX Gui Widget Scope Sink
(wxgui_scopesink2_0).

When i try to execute the flowgraph. The WX Gui Scope window appears but
nothing happens. I am receiving the following error:

Traceback (most recent call last):
File "F:\Win7\gnuradio\lib\site-packages\gnuradio\wxgui\forms\forms.py",
line 100, in <lambda>
widget.Bind(EVT_DATA, lambda x: self._update(x.data))
File "F:\Win7\gnuradio\lib\site-packages\gnuradio\wxgui\forms\forms.py",
line 503, in _update
def _update(self, i): self._notebook.SetSelection(i)
File "C:\Python27\lib\site-packages\wx-2.8-msw-unicode\wx\_controls.py",
line 3021, in SetSelection
return _controls_.BookCtrlBase_SetSelection(*args, **kwargs)
ValueError: in method 'BookCtrlBase_SetSelection', expected argument 2 
of
type 'size_t'



NOTE: I managed to see the signal in QT Gui Widget. Everything was fine.

Why can't i use the WX Gui Widgets? ( i've tried several more like the
waterfall, fft... still nothing )

Hope this is the right place to ask. And hope i'll know how to reply :))
Have a great day!

Mihai,
Polytechnics University of Bucharest.

Same problem, just downloaded everything today from Ettus site.  Windows 
XP/SP3.

Except when I try to use the Qt GUI Sink, there is an error message box 
flashes up for < 1 second and disappears.  The command window has an 
error .gr_fftw_wisdom: Invalid argument gri_fttw:

I captured the error box for the QT GUI Sink:

top_block.py, line 68, in <module> tb= top_block()
top_block.py, line 46, in __init__
self.top_layout.addWidget(self._qtgui_sink_x_1_win)
top_block.py, line 94, in __getattr__  return getattr(self._tb,name)
AttributeError:  'gr_top_block_sptr' object has no attribute
'top_layout'

Mihai Chermaneanu <chrmihai <at> gmail.com> writes:

>
....(*args, **kwargs)ValueError: in method 'BookCtrlBase_SetSelection',
expected argument 2 of type 'size_t'
>


I get the same error.  I just installed gnuradio for windows as per the
instructions on the ettus website
(http://code.ettus.com/redmine/ettus/projects/uhd/w...).

When I run the cvsd_sweep.grc example I get the same error:
...    return _controls_.BookCtrlBase_SetSelection(*args, **kwargs)
ValueError: in method 'BookCtrlBase_SetSelection', expected argument 2 
of
type 'size_t'.  I hear the sweet tone but all the plots a re messed up 
and do
not display any data.

I uninstalled and reinstalled exverything but still get the same error. 
I
even tried going back to versions of each item, one at a time, that a 
coworker
had working last year but I still get the same error.

I also ran the dial_tone.grc example and I hear the tone and the gui 
seems to
work but I get this error:

...\AppData\Roaming\.gnuradio\prefs\gr_vmcircbuf_default_factoryC:\app
s\gnuradio\lib\site-packages\gnuradio\grc\gui\Dialogs.py:36: GtkWarning:
gtk_tex
t_buffer_emit_insert: assertion `g_utf8_validate (text, len, NULL)' 
failed
  self.insert = lambda line: 
text_buffer.insert(text_buffer.get_end_iter(),
line
)
: Invalid argument
ÉÖI?°êI?\bhehn\AppData\Roaming\.gnuradio\prefs\gr_vmcircbuf_default_factory:
Inv
alid argument

Thanks for any help,
B

On Fri, Mar 1, 2013 at 8:42 AM, B Hun <bhehn@harris.com> wrote:
> (http://code.ettus.com/redmine/ettus/projects/uhd/w...).
>
> : Invalid argument
> I?I?\bhehn\AppData\Roaming\.gnuradio\prefs\gr_vmcircbuf_default_factory:
> Inv
> alid argument
>
> Thanks for any help,
> B


What version of wxPython are you running? They've released a 2.9 which
might have an API change causing this problem. If you are using 2.9,
try going back to a 2.8 release and see if that help.

Tom

> What version of wxPython are you running? ...
> Tom

Here is what I installed:

wxPython2.8-win32-unicode-2.8.12.1-py27
gnuradio_3.6.3_Win32
lxml-3.1.0.win32-py2.7
numpy-1.6.2-win32-superpack-python2.7
pygtk-all-in-one-2.24.2.win32-py2.7
PyQt4.Qwt5-5.2.1.win32-py27
PyQt-Py2.7-x86-gpl-4.9.6-1
python-2.7.3
setuptools-0.6c11.win32-py2.7
uhd_003.005.001-release_Win32
vcredist_x86
Win7 64 bit

I also did a fresh install on another PC and the exact same results.

On 03/01/2013 07:42 AM, B Hun wrote:
> (http://code.ettus.com/redmine/ettus/projects/uhd/w...).
>
So, gnuradio doesnt actually build against wx python, its just a runtime
dependency when using the WX GUI plotters and widgets. So, you shouldnt
have to reinstall everything, potentially, just wx python.

Now it looks like the error is within wx python guts. Which might mean
there is a bug in this version of wx python, or perhaps we are using one
of its widgets in an incompatible way.

For a quick fix. I recommend trying a older version of the wx python
installer and see if any errors become fixed. But we should really find
out what widget is calling into this BookCtrlBase and double check that
API that we are using it right.

> : Invalid argument
> ÉÖI?°êI?\bhehn\AppData\Roaming\.gnuradio\prefs\gr_vmcircbuf_default_factory:
> Inv
> alid argument
>

I think these are warnings that can be ignored.

-josh

Unfortunately that is not the only error I get.  When I run the 
cvsd_sweep.gr example I get some more serious errors:

>>>>

    def _update(self, i): self._notebook.SetSelection(i)
  File 
"C:\apps\Python27\lib\site-packages\wx-2.8-msw-unicode\wx\_controls.py", 
line 3021, in SetSelection
    return _controls_.BookCtrlBase_SetSelection(*args, **kwargs)
ValueError: in method 'BookCtrlBase_SetSelection', expected argument 2 
of type 'size_t'
<<<<

I also get this in the cmd window:
>>>>
n\AppData\Roaming\.gnuradio\prefs\gr_vmcircbuf_default_fact
oryC:\apps\gnuradio\lib\site-packages\gnuradio\grc\gui\Dialogs.py:36: 
GtkWarning
: gtk_text_buffer_emit_insert: assertion `g_utf8_validate (text, len, 
NULL)' fai
led
  self.insert = lambda line: 
text_buffer.insert(text_buffer.get_end_iter(), line
)
: Invalid argument
<<<<

I hear the sweep tone but the GUI is messed up.  Nothing displays on the 
plots and the sliders do not work.