I am new to python and getting this error, please help me out correct it.
AttributeError: 'module' object has no attribute 'fft2'
Program
import numpy, scipy , pylab , wave , scipy.io.wavfile as wav
xs = numpy.arange (1,100,.01)
rate , sample = wav.read("pianotest.wav")
fft2=scipy.fft2(sample) # algo applied
bp=fft2[:]
for i in range(len(bp)):
if i>=10:bp[i]=0
ibp=scipy.ifft2(bp) # inverse algo
print"to check dimension"
print("sampling rate = {} Hz, length = {} samples, channels = {}".format(rate, *sample.shape))
print(sample)
asked Jun 4, 2014 at 4:19
user3699203
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3 Answers 3
Instead of scipy.fft2 and scipy.ifft2, do scipy.fftpack.fft2, or numpy.fft.fft2.
Also, add import scipy.fftpack2 to the top of your code, and then everything should work fine.
Look here for more information on scipy.fftpack.fft2 or here for information on numpy.fft.fft2.
Here is your edited code:
import numpy, scipy , pylab , wave, scipy.fftpack, scipy.io.wavfile as wav
xs = numpy.arange (1,100,.01)
rate , sample = wav.read("pianotest.wav")
fft2=scipy.fftpack.fft2(sample) # algo applied
bp=fft2[:]
for i in range(len(bp)):
if i>=10:bp[i]=0
ibp=scipy.fftpack.ifft2(bp) # inverse algo
print"to check dimension"
print("sampling rate = {} Hz, length = {} samples, channels = {}".format(rate, *sample.shape))
print(sample)
If it still isn't working, check to see if your scipy version is 0.14.0 by typing python -c "import scipy; print scipy.__version__" into your command prompt. If it doesn't show 0.14.0 or above, then upgrade your version of scipy.
answered Jun 4, 2014 at 4:21
A.J. Uppal
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4 Comments
user3699203
still shows the same error as "AttributeError: 'module' object has no attribute 'fftpack'"
user3699203
Thank you, just need to add another line "from scipy.fftpack import fft2, ifft2 " at the top and it works fine
A.J. Uppal
@user3699203 if this answer helped you, feel free to accept it by clicking the green check mark next to my answer. Full disclosure: it gives you +2 reputation :)
Christian Tapia
@aj8uppal next time, link to this post: How does accepting an answer work
It looks like you want either this from SciPy
scipy.fftpack.fft2
or the following from NumPy
numpy.fft.fft2
answered Jun 4, 2014 at 4:22
Christian Tapia
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3 Comments
user3699203
AttributeError: 'module' object has no attribute 'fftpack'
Christian Tapia
Are you sure you installed the
SciPy module correctly?user3699203
Thanks, just need to add another line "from scipy.fftpack import fft2, ifft2 " at the top and it works fine
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