THIS MODULE IS DEPRECATED. Its functionality has been moved to Reikna. The last version, 0.3.8, will remain on PyPi for backward compatibility purposes.
PyFFT is a module containing Apple's FFT implementation ported for PyCuda and PyOpenCL. Documentation can be found in doc, managed by Sphinx (or, in rendered form, on project's page).
Module will work even if only one of PyCuda and PyOpenCL is present; that's why they are not added to dependencies, and it is your responsibility to install the module you need.