Reverse List for FFT

reverse_list_fft.py

# As stated in the SciPy documentation for fft http://docs.scipy.org/doc/scipy-0.14.0/reference/generated/scipy.fftpack.fft.html
# Note that y(-j) = y(n-j).conjugate().

# This is a possible implementation of that equality. 

import numpy as np
from scipy.fftpack import fft

x = np.linspace(-np.pi, np.pi, 201)
y = fft(x)

list_index = range(len(y)) 
[l[i].conjugate() for i in reversed(list_index)]

# Now its spectrum can be computed