[Numpy-discussion] ImportError: cannot import name inverse_fft

David M. Cooke cookedm at physics.mcmaster.ca
Mon Jun 12 17:33:44 CDT 2006


On Mon, 12 Jun 2006 09:02:54 +0200
Nils Wagner <nwagner at iam.uni-stuttgart.de> wrote:

> matplotlib data path /usr/lib64/python2.4/site-packages/matplotlib/mpl-data
> $HOME=/home/nwagner
> loaded rc file /home/nwagner/matplotlibrc
> matplotlib version 0.87.3
> verbose.level helpful
> interactive is False
> platform is linux2
> numerix numpy 0.9.9.2603
> Traceback (most recent call last):
>   File "cascade.py", line 3, in ?
>     from pylab import plot, show, xlim, ylim, subplot, xlabel, ylabel,
> title, legend,savefig,clf,scatter
>   File "/usr/lib64/python2.4/site-packages/pylab.py", line 1, in ?
>     from matplotlib.pylab import *
>   File "/usr/lib64/python2.4/site-packages/matplotlib/pylab.py", line
> 198, in ?
>     import mlab  #so I can override hist, psd, etc...
>   File "/usr/lib64/python2.4/site-packages/matplotlib/mlab.py", line 74,
> in ?
>     from numerix.fft import fft, inverse_fft
> ImportError: cannot import name inverse_fft

It's a bug in matplotlib: it should use ifft for numpy. We cleaned up the
namespace a while back to not have two names for things. (Admittedly, I'm not
sure why we went with the short names instead of the self-descriptive long
ones. It's in the archives somewhere.)

-- 
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|David M. Cooke                      http://arbutus.physics.mcmaster.ca/dmc/
|cookedm at physics.mcmaster.ca




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