diff options
Diffstat (limited to 'numpy/fft')
| -rw-r--r-- | numpy/fft/helper.py | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/numpy/fft/helper.py b/numpy/fft/helper.py index 56d03619f..0a475153f 100644 --- a/numpy/fft/helper.py +++ b/numpy/fft/helper.py @@ -4,14 +4,15 @@ Discrete Fourier Transforms - helper.py """ from __future__ import division, absolute_import, print_function +import numpy.core.numerictypes as nt +from numpy.core import ( + asarray, concatenate, arange, take, integer, empty + ) + # Created by Pearu Peterson, September 2002 __all__ = ['fftshift', 'ifftshift', 'fftfreq', 'rfftfreq'] -from numpy.core import asarray, concatenate, arange, take, \ - integer, empty -import numpy.core.numerictypes as nt -import types def fftshift(x, axes=None): """ @@ -156,7 +157,7 @@ def fftfreq(n, d=1.0): array([ 0. , 1.25, 2.5 , 3.75, -5. , -3.75, -2.5 , -1.25]) """ - if not (isinstance(n,types.IntType) or isinstance(n, integer)): + if not (isinstance(n,int) or isinstance(n, integer)): raise ValueError("n should be an integer") val = 1.0 / (n * d) results = empty(n, int) @@ -212,7 +213,7 @@ def rfftfreq(n, d=1.0): array([ 0., 10., 20., 30., 40., 50.]) """ - if not (isinstance(n,types.IntType) or isinstance(n, integer)): + if not (isinstance(n,int) or isinstance(n, integer)): raise ValueError("n should be an integer") val = 1.0/(n*d) N = n//2 + 1 |