NumPy 1.16. 3 release

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NumPy 1.16. 3 release

Charles R Harris
Hi All,

On behalf of the NumPy team I am pleased to announce the release of NumPy 1.16.3 which contains several fixes for newly reported bugs.  The Python versions supported in this release are 2.7 and 3.5-3.7.  There are several notable changes.
  • Unpickling object arrays when loading *.npy or *.npz files now requires an explicit opt-in. This backwards incompatible change was made in response to CVE-2019-6446.
  • The covariance in 'random.mvnormal' is cast to double. This should make the tolerance more useful when checking the singular values of the covariance matrix.
  • The '__array_interface__' offset now works as documented. The  offset value was being mistakenly ignored.
Downstream developers building this release should use Cython >= 0.29.2 and, if using OpenBLAS, OpenBLAS > v0.3.4.  Wheels for this release can be downloaded from PyPI, source archives and release notes are available from Github.

If you are installing using pip, you may encounter a problem with older installed versions of NumPy that pip did not delete becoming mixed with the current version, resulting in an ``ImportError``. That problem is particularly
common on Debian derived distributions due to a modified pip.  The fix is to make sure all previous NumPy versions installed by pip have been removed. See #12736 for discussion of the issue.


A total of 16 people contributed to this release.  People with a "+" by their
names contributed a patch for the first time.
  • Andreas Schwab
  • Bharat Raghunathan +
  • Bran +
  • Charles Harris
  • Eric Wieser
  • Jakub Wilk
  • Kevin Sheppard
  • Marten van Kerkwijk
  • Matti Picus
  • Paul Ivanov
  • Ralf Gommers
  • Sebastian Berg
  • Tyler Reddy
  • Warren Weckesser
  • Yu Feng
  • adeak +

Pull requests merged

A total of 26 pull requests were merged for this release.
  • gh-13072 : BUG: Fixes to numpy.distutils.Configuration.get_version (#13056)
  • gh-13082 : BUG: Fix errors in string formatting while producing an error
  • gh-13083 : BUG: Convert fortran flags in environment variable
  • gh-13084 : BUG: Remove error-prone borrowed reference handling
  • gh-13085 : BUG: Add error checks when converting integers to datetime types
  • gh-13091 : BUG: Remove our patched version of `distutils.split_quoted`
  • gh-13141 : BUG: Fix testsuite failures on ppc and riscv
  • gh-13142 : BUG: Fix parameter validity checks in ``random.choice``
  • gh-13143 : BUG: Ensure linspace works on object input.
  • gh-13144 : BLD: fix include list for sdist building.
  • gh-13145 : BUG: __array_interface__ offset was always ignored
  • gh-13274 : MAINT: f2py: Add a cast to avoid a compiler warning.
  • gh-13275 : BUG, MAINT: fix reference count error on invalid input to ndarray.flat
  • gh-13276 : ENH: Cast covariance to double in random mvnormal
  • gh-13278 : BUG: Fix null pointer dereference in PyArray_DTypeFromObjectHelper
  • gh-13339 : BUG: Use C call to sysctlbyname for AVX detection on MacOS.
  • gh-13340 : BUG: Fix crash when calling savetxt on a padded array
  • gh-13341 : BUG: iteration variable size fix
  • gh-13342 : DOC: Add as_ctypes_type to the documentation
  • gh-13350 : BUG: Return the coefficients array directly
  • gh-13351 : BUG/MAINT: Tidy typeinfo.h and .c
  • gh-13359 : BUG: Make allow_pickle=False the default for loading
  • gh-13360 : DOC: fix some doctest failures
  • gh-13363 : BUG/MAINT: Tidy typeinfo.h and .c
  • gh-13381 : BLD: address mingw-w64 issue. Follow-up to gh-9977
  • gh-13382 : REL: Prepare for the NumPy release.

Charles Harris

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