Log Message:
py-scipy: update to 1.6.2

Highlights of this release

scipy.ndimage improvements: Fixes and ehancements to boundary extension
  modes for interpolation functions. Support for complex-valued inputs in many
  filtering and interpolation functions. New grid_mode option for
  scipy.ndimage.zoom to enable results consistent with scikit-image's
  rescale.
scipy.optimize.linprog has fast, new methods for large, sparse problems
  from the HiGHS library.
scipy.stats improvements including new distributions, a new test, and
  enhancements to existing distributions and tests

Deprecated features

scipy.spatial changes
  Calling KDTree.query with k=None to find all neighbours is deprecated.
  Use KDTree.query_ball_point instead.
distance.wminkowski was deprecated; use distance.minkowski and supply
  weights with the w keyword instead.
Backwards incompatible changes
  Using scipy.fft as a function aliasing numpy.fft.fft was removed after
  being deprecated in SciPy 1.4.0. As a result, the scipy.fft submodule
  must be explicitly imported now, in line with other SciPy subpackages.
  scipy.signal changes
The output of decimate, lfilter_zi, lfiltic, sos2tf, and
  sosfilt_zi have been changed to match numpy.result_type of their inputs.
The window function slepian was removed.
The frechet_l and frechet_r distributions were removed.