Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/scipy/fftpack/__init__.py

@@ -0,0 +1,101 @@
+"""
+=========================================================
+Legacy discrete Fourier transforms (:mod:`scipy.fftpack`)
+=========================================================
+
+.. warning::
+
+   This submodule is now considered legacy, new code should use
+   :mod:`scipy.fft`.
+
+Fast Fourier Transforms (FFTs)
+==============================
+
+.. autosummary::
+   :toctree: generated/
+
+   fft - Fast (discrete) Fourier Transform (FFT)
+   ifft - Inverse FFT
+   fft2 - 2-D FFT
+   ifft2 - 2-D inverse FFT
+   fftn - N-D FFT
+   ifftn - N-D inverse FFT
+   rfft - FFT of strictly real-valued sequence
+   irfft - Inverse of rfft
+   dct - Discrete cosine transform
+   idct - Inverse discrete cosine transform
+   dctn - N-D Discrete cosine transform
+   idctn - N-D Inverse discrete cosine transform
+   dst - Discrete sine transform
+   idst - Inverse discrete sine transform
+   dstn - N-D Discrete sine transform
+   idstn - N-D Inverse discrete sine transform
+
+Differential and pseudo-differential operators
+==============================================
+
+.. autosummary::
+   :toctree: generated/
+
+   diff - Differentiation and integration of periodic sequences
+   tilbert - Tilbert transform:         cs_diff(x,h,h)
+   itilbert - Inverse Tilbert transform: sc_diff(x,h,h)
+   hilbert - Hilbert transform:         cs_diff(x,inf,inf)
+   ihilbert - Inverse Hilbert transform: sc_diff(x,inf,inf)
+   cs_diff - cosh/sinh pseudo-derivative of periodic sequences
+   sc_diff - sinh/cosh pseudo-derivative of periodic sequences
+   ss_diff - sinh/sinh pseudo-derivative of periodic sequences
+   cc_diff - cosh/cosh pseudo-derivative of periodic sequences
+   shift - Shift periodic sequences
+
+Helper functions
+================
+
+.. autosummary::
+   :toctree: generated/
+
+   fftshift - Shift the zero-frequency component to the center of the spectrum
+   ifftshift - The inverse of `fftshift`
+   fftfreq - Return the Discrete Fourier Transform sample frequencies
+   rfftfreq - DFT sample frequencies (for usage with rfft, irfft)
+   next_fast_len - Find the optimal length to zero-pad an FFT for speed
+
+Note that ``fftshift``, ``ifftshift`` and ``fftfreq`` are numpy functions
+exposed by ``fftpack``; importing them from ``numpy`` should be preferred.
+
+Convolutions (:mod:`scipy.fftpack.convolve`)
+============================================
+
+.. module:: scipy.fftpack.convolve
+
+.. autosummary::
+   :toctree: generated/
+
+   convolve
+   convolve_z
+   init_convolution_kernel
+   destroy_convolve_cache
+
+"""
+
+
+__all__ = ['fft','ifft','fftn','ifftn','rfft','irfft',
+           'fft2','ifft2',
+           'diff',
+           'tilbert','itilbert','hilbert','ihilbert',
+           'sc_diff','cs_diff','cc_diff','ss_diff',
+           'shift',
+           'fftfreq', 'rfftfreq',
+           'fftshift', 'ifftshift',
+           'next_fast_len',
+           'dct', 'idct', 'dst', 'idst', 'dctn', 'idctn', 'dstn', 'idstn'
+           ]
+
+from .basic import *
+from .pseudo_diffs import *
+from .helper import *
+from .realtransforms import *
+
+from scipy._lib._testutils import PytestTester
+test = PytestTester(__name__)
+del PytestTester