[Discuss-gnuradio] NOOB needs help with simple.py

Hi all,

I wanna work into this project, as I think its excellent!
My box is a gentoo box running

net-wireless/gnuradio-3.7.3:0/3.7.3 USE="alsa analog digital examples fcd filter grc pager qt4 sdl uhd utils wavelet wxwidgets -doc -jack -oss -performance-counters -portaudio" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7"


For the first experiments I found this page giving a scope and fft display of the soundcard input,


http://www.funwithelectronics.com/?id=10

the py file looks like this

#!/usr/bin/env python

from gnuradio import gr
from gnuradio.wxgui import stdgui2,fftsink2,scopesink2
import wx

class gnuradioGUI(stdgui2.std_top_block):
def __init__(self,frame,panel,vbox,argv):
stdgui2.std_top_block.__init__(self,frame,panel,vbox,argv)

fft = fftsink2.fft_sink_f(panel, title="FFT display", fft_size=512, sample_rate=100000)
vbox.Add(fft.win,4,wx.EXPAND)


scope = scopesink2.scope_sink_f(panel, title="Oscilloscope", sample_rate=100000)
vbox.Add(scope.win,4,wx.EXPAND)

signal = gr.sig_source_f(100000,gr.GR_SIN_WAVE,20000,1000,0)
throttle = gr.throttle(gr.sizeof_float,100000)
self.connect(signal,throttle)
self.connect(throttle,fft)
self.connect(throttle,scope)

if __name__ == '__main__':
app = stdgui2.stdapp(gnuradioGUI,"A simple GNU Radio GUI")
app.MainLoop()




when I try to start this

#python2.7 simple.py

Using Volk machine: avx_32_mmx_orc
Traceback (most recent call last):
File "./simplegui.py", line 25, in <module>
app = stdgui2.stdapp(gnuradioGUI,"A simple GNU Radio GUI")
File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py", line 46, in __init__
wx.App.__init__ (self, redirect=False)
File "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7981, in __init__
self._BootstrapApp()
File "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7555, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py", line 49, in OnInit
frame = stdframe (self.top_block_maker, self.title, self._nstatus)
File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py", line 76, in __init__
self.panel = stdpanel (self, self, top_block_maker)
File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/stdgui2.py", line 98, in __init__
self.top_block = top_block_maker (frame, self, vbox, sys.argv)
File "./simplegui.py", line 18, in __init__
signal = gr.sig_source_f(100000,gr.GR_SIN_WAVE,20000,1000,0)
AttributeError: 'module' object has no attribute 'sig_source_f'



but then nothing is displayed

can someone experienced please give me a hint??



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