How to add a spectrum analyzer GUI window in usrp_spectrum _sense.py file

GNU Radio
1

Hi All,

I am not familiar with Python. I want to know how I can add an GUI
window to
show spectrum, like usrp_fft.py does, in usrp_spectrum_sense.py file.
The
example of usrp_spectrum_sense gives the m.data and also m.frequency.
Can I
add GUI to show spectrum and meantime update center frequency from GUI?
How
can I run the script from tb.start() first, and then update from
stdgui2.std_top_block() ?

Thanks,
Brook

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