Run $Path command in Terminal in a python script

Question

i use ipython notebook and I want to call a terminal command: fft <in> <out>

my "fft" is in my $PATH so using a terminal, this would work.

How can I run this command in my ipython notebook?

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the problem is that my fft executable is in my $PATH folder, and python won't recognize this

Answer 1

Found the solution:

import os    
os.system("xterm -e 'bash -c \"fft -i 3 AddedK AddedK_ifft; exit -f exec bash\"' ")

xterm opens a new terminal

fft ...; calls the function fft

exit -f closes the terminal