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+"""
+========================================
+Interpolation (:mod:`scipy.interpolate`)
+========================================
+
+.. currentmodule:: scipy.interpolate
+
+Sub-package for functions and objects used in interpolation.
+
+See the :ref:`user guide <tutorial-interpolate>` for recommendations on choosing a
+routine, and other usage details.
+
+
+Univariate interpolation
+========================
+
+.. autosummary::
+   :toctree: generated/
+
+   make_interp_spline
+   CubicSpline
+   PchipInterpolator
+   Akima1DInterpolator
+   FloaterHormannInterpolator
+   BarycentricInterpolator
+   KroghInterpolator
+   CubicHermiteSpline
+
+**Low-level data structures for univariate interpolation:**
+
+.. autosummary::
+   :toctree: generated/
+
+   PPoly
+   BPoly
+   BSpline
+
+
+Multivariate interpolation
+==========================
+
+**Unstructured data**
+
+.. autosummary::
+   :toctree: generated/
+
+   LinearNDInterpolator
+   NearestNDInterpolator
+   CloughTocher2DInterpolator
+   RBFInterpolator
+
+**For data on a grid:**
+
+.. autosummary::
+   :toctree: generated/
+
+   RegularGridInterpolator
+
+.. seealso::
+
+    `scipy.ndimage.map_coordinates`,
+    :ref:`An example wrapper for map_coordinates <tutorial-interpolate_cartesian-grids>`
+
+
+**Low-level data structures for tensor product polynomials and splines:**
+
+
+.. autosummary::
+   :toctree: generated/
+
+   NdPPoly
+   NdBSpline
+
+
+1-D spline smoothing and approximation
+======================================
+
+.. autosummary::
+   :toctree: generated/
+
+   make_lsq_spline
+   make_smoothing_spline
+   make_splrep
+   make_splprep
+   generate_knots
+
+Rational Approximation
+======================
+
+.. autosummary::
+   :toctree: generated/
+
+   AAA
+
+
+Interfaces to FITPACK routines for 1D and 2D spline fitting
+===========================================================
+
+This section lists wrappers for `FITPACK <http://www.netlib.org/dierckx/>`__
+functionality for 1D and 2D smoothing splines. In most cases, users are better off
+using higher-level routines listed in previous sections.
+
+
+1D FITPACK splines
+------------------
+
+This package provides two sets of functionally equivalent wrappers: object-oriented and
+functional.
+
+**Functional FITPACK interface:**
+
+
+.. autosummary::
+   :toctree: generated/
+
+   splrep
+   splprep
+   splev
+   splint
+   sproot
+   spalde
+   splder
+   splantider
+   insert
+
+**Object-oriented FITPACK interface:**
+
+.. autosummary::
+   :toctree: generated/
+
+   UnivariateSpline
+   InterpolatedUnivariateSpline
+   LSQUnivariateSpline
+
+
+2D FITPACK splines
+------------------
+
+**For data on a grid:**
+
+.. autosummary::
+   :toctree: generated/
+
+   RectBivariateSpline
+   RectSphereBivariateSpline
+
+**For unstructured data (OOP interface):**
+
+.. autosummary::
+   :toctree: generated/
+
+   BivariateSpline
+   SmoothBivariateSpline
+   SmoothSphereBivariateSpline
+   LSQBivariateSpline
+   LSQSphereBivariateSpline
+
+**For unstructured data (functional interface):**
+
+.. autosummary::
+   :toctree: generated/
+
+   bisplrep
+   bisplev
+
+
+Additional tools
+================
+
+.. autosummary::
+   :toctree: generated/
+
+   lagrange
+   approximate_taylor_polynomial
+   pade
+
+   interpn
+   griddata
+   barycentric_interpolate
+   krogh_interpolate
+   pchip_interpolate
+   Rbf
+   interp1d
+   interp2d
+
+.. seealso::
+
+   `scipy.ndimage.map_coordinates`,
+   `scipy.ndimage.spline_filter`,
+
+"""  # noqa: E501
+from ._interpolate import *
+from ._fitpack_py import *
+
+from ._fitpack2 import *
+
+from ._rbf import Rbf
+
+from ._rbfinterp import *
+
+from ._polyint import *
+
+from ._cubic import *
+
+from ._ndgriddata import *
+
+from ._bsplines import *
+from ._fitpack_repro import generate_knots, make_splrep, make_splprep
+
+from ._pade import *
+
+from ._rgi import *
+
+from ._ndbspline import NdBSpline
+
+from ._bary_rational import *
+
+# Deprecated namespaces, to be removed in v2.0.0
+from . import fitpack, fitpack2, interpolate, ndgriddata, polyint, rbf, interpnd
+
+__all__ = [s for s in dir() if not s.startswith('_')]
+
+from scipy._lib._testutils import PytestTester
+test = PytestTester(__name__)
+del PytestTester
+
+# Backward compatibility
+pchip = PchipInterpolator