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gnuradiognuradio-companion

AttributeError: type object 'fft' has no attribute 'fft_vcc'

I tried the flow graph shown below, but I get the following error and cannot run it. What could be the cause? Thanks.


Executing: /usr/bin/python3 -u /home/nomo/fft.py

Traceback (most recent call last):
  File "/home/nomo/fft.py", line 230, in <module>
    main()
  File "/home/nomo/fft.py", line 208, in main
    tb = top_block_cls()
  File "/home/nomo/fft.py", line 159, in __init__
    self.fft_vxx_0 = fft.fft_vcc(fftsize, True, window.blackmanharris(1024), True, 1)
AttributeError: type object 'fft' has no attribute 'fft_vcc'

enter image description here

Solution

  • You've got a name conflict: You try to use the fft module (as imported in your python by from gnuradio import fft, but you also have declared the ID of this flowgraph class to be fft. So, Python picks the wrong one.

    Pick any other Id in your Options block and the error will go away.