chebpy/chebpy

"""Import fftw via pyfftw if the user has it installed,
otherwise default to fftpack via numpy"""

from .importing import import_optional


# import the requested FFT module
_fft = import_optional("pyfftw.interfaces.numpy_fft", "PYFFTW", fallback="numpy.fft")

# assign the interfaces for import from other modules
fft, ifft = _fft.fft, _fft.ifft