[Numpy-svn] [numpy/numpy] de84ba: MAINT: Add deprecation warning to multi-field view...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/numpy/numpy
  Commit: de84ba263abc8472f37aa8e08a26da84cdbd0d2a
      https://github.com/numpy/numpy/commit/de84ba263abc8472f37aa8e08a26da84cdbd0d2a
  Author: Allan Haldane <allan.haldane at gmail.com>
  Date:   2016-09-24 (Sat, 24 Sep 2016)

  Changed paths:
    M doc/release/1.12.0-notes.rst
    M numpy/core/src/multiarray/convert.c
    M numpy/core/src/multiarray/dtype_transfer.c
    M numpy/core/src/multiarray/mapping.c
    M numpy/core/src/multiarray/methods.c
    M numpy/core/tests/test_multiarray.py
    M numpy/core/tests/test_nditer.py
    M numpy/core/tests/test_records.py
    M numpy/ma/tests/test_core.py

  Log Message:
  -----------
  MAINT: Add deprecation warning to multi-field views/assignment

Behavior of multi-field indexes will change in 1.13: Multi-field indexes
will return a view (not a copy) and assignment between structures with
non-identical fieldnames occurs "by position" (not "by fieldname"):

    >>> a = zeros(10, dtype=[('x', 'i8'), ('y', 'i8'), ('z', 'i8')])
    >>> a[['x', 'z']].view('i4') # Deprecation warning for multifield view
    >>> b = ones(10, dtype=[('y', 'i4'), ('x', 'f4')])
    >>> a[:] = b  # Deprecation warning for multifield assignment


  Commit: a17e905faa20fcdd1b3f039bceef6efa19671bb3
      https://github.com/numpy/numpy/commit/a17e905faa20fcdd1b3f039bceef6efa19671bb3
  Author: Charles Harris <charlesr.harris at gmail.com>
  Date:   2016-09-24 (Sat, 24 Sep 2016)

  Changed paths:
    M doc/release/1.12.0-notes.rst
    M numpy/core/src/multiarray/convert.c
    M numpy/core/src/multiarray/dtype_transfer.c
    M numpy/core/src/multiarray/mapping.c
    M numpy/core/src/multiarray/methods.c
    M numpy/core/tests/test_multiarray.py
    M numpy/core/tests/test_nditer.py
    M numpy/core/tests/test_records.py
    M numpy/ma/tests/test_core.py

  Log Message:
  -----------
  Merge pull request #6054 from ahaldane/warnview

WIP: MAINT: Add deprecation warning to views of multi-field indexes


Compare: https://github.com/numpy/numpy/compare/a6574b2f080e...a17e905faa20