[Discuss-gnuradio] how to define a new variable in GRC

[Achilleas Anastasopoulos]

I have 2 variable blocks in GRC called "channel" and "N"
that represent an array of channel taps and an integer, respectively.

I want to generate a new variable called "chanel_FT_inv"
which represents
1/scipy.fft(channel,N)
ie, the inverse of the channel N-length Fourier transform

How do I do that in a clean way from within GRC?

For the moment I do that manually:
I generate the .py file from GRC and then edit it to add the 
corresponding piece of code...

Thanks
Achilleas