========================== SciPy 1.3.1 Release Notes

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SciPy 1.3.1 is a bug-fix release with no new features compared to 1.3.0.

Authors

• Matt Haberland
• Geordie McBain
• Yu Feng
• Evgeni Burovski
• Sturla Molden
• Tapasweni Pathak
• Eric Larson
• Peter Bell
• Carlos Ramos Carreño +
• Ralf Gommers
• David Hagen
• Antony Lee
• Ayappan P
• Tyler Reddy
• Pauli Virtanen

A total of 15 people contributed to this release. People with a "+" by their names contributed a patch for the first time. This list of names is automatically generated, and may not be fully complete.

Issues closed for 1.3.1

• #5040 <https://github.com/scipy/scipy/issues/5040>__: BUG: Empty data handling of (c)KDTrees
• #9901 <https://github.com/scipy/scipy/issues/9901>__: lsoda fails to detect stiff problem when called from solve_ivp
• #10206 <https://github.com/scipy/scipy/issues/10206>__: sparse matrices indexing with scipy 1.3
• #10232 <https://github.com/scipy/scipy/issues/10232>__: Exception in loadarff with quoted nominal attributes in scipy...
• #10292 <https://github.com/scipy/scipy/issues/10292>__: DOC/REL: Some sections of the release notes are not nested correctly.
• #10303 <https://github.com/scipy/scipy/issues/10303>__: BUG: optimize: linprog failing TestLinprogSimplexBland::test_unbounded_below_no_presolve_corrected
• #10376 <https://github.com/scipy/scipy/issues/10376>__: TST: Travis CI fails (with pytest 5.0 ?)
• #10384 <https://github.com/scipy/scipy/issues/10384>__: CircleCI doc build failing on new warnings
• #10398 <https://github.com/scipy/scipy/issues/10398>__: Scipy 1.3.0 build broken in AIX
• #10501 <https://github.com/scipy/scipy/issues/10501>__: BUG: scipy.spatial.HalfspaceIntersection works incorrectly
• #10514 <https://github.com/scipy/scipy/issues/10514>__: BUG: cKDTree GIL handling is incorrect
• #10535 <https://github.com/scipy/scipy/issues/10535>__: TST: master branch CI failures
• #10572 <https://github.com/scipy/scipy/issues/10572>__: BUG: ckdtree query_ball_point errors on discontiguous input
• #10597 <https://github.com/scipy/scipy/issues/10597>__: BUG: No warning on PchipInterpolator changing from bernstein base to local power base

Pull requests for 1.3.1

• #10071 <https://github.com/scipy/scipy/pull/10071>__: DOC: reconstruct SuperLU permutation matrices avoiding SparseEfficiencyWarning
• #10196 <https://github.com/scipy/scipy/pull/10196>__: Fewer checks on xdata for curve_fit.
• #10207 <https://github.com/scipy/scipy/pull/10207>__: BUG: Compressed matrix indexing should return a scalar
• #10233 <https://github.com/scipy/scipy/pull/10233>__: Fix for ARFF reader regression (#10232)
• #10306 <https://github.com/scipy/scipy/pull/10306>__: BUG: optimize: Fix for 10303
• #10309 <https://github.com/scipy/scipy/pull/10309>__: BUG: Pass jac=None directly to lsoda
• #10377 <https://github.com/scipy/scipy/pull/10377>__: TST, MAINT: adjustments for pytest 5.0
• #10379 <https://github.com/scipy/scipy/pull/10379>__: BUG: sparse: set writeability to be forward-compatible with numpy>=1.17
• #10426 <https://github.com/scipy/scipy/pull/10426>__: MAINT: Fix doc build bugs
• #10431 <https://github.com/scipy/scipy/pull/10431>__: Update numpy version for AIX
• #10457 <https://github.com/scipy/scipy/pull/10457>__: BUG: Allow ckdtree to accept empty data input
• #10503 <https://github.com/scipy/scipy/pull/10503>__: BUG: spatial/qhull: get HalfspaceIntersection.dual_points from the correct array
• #10516 <https://github.com/scipy/scipy/pull/10516>__: BUG: Use nogil contexts in cKDTree
• #10520 <https://github.com/scipy/scipy/pull/10520>__: DOC: Proper .rst formatting for deprecated features and Backwards incompatible changes
• #10540 <https://github.com/scipy/scipy/pull/10540>__: MAINT: Fix Travis and Circle
• #10573 <https://github.com/scipy/scipy/pull/10573>__: BUG: Fix query_ball_point with discontiguous input
• #10600 <https://github.com/scipy/scipy/pull/10600>__: BUG: interpolate: fix broken conversions between PPoly/BPoly objects