8000 ENH: Add shape to *_like() array creation by pentschev · Pull Request #13046 · numpy/numpy · GitHub
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ENH: Add shape to *_like() array creation #13046

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Merged
merged 24 commits into from
Apr 25, 2019
Merged

ENH: Add shape to *_like() array creation #13046

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f885c08
ENH: Added shape argument to *_like() array creation functions
pentschev Feb 26, 2019
5ad61b6
ENH: C backend adjustments for shape argument on *_like()
pentschev Feb 26, 2019
fd3e270
TST: Added test for shape argument in *_like() functions
pentschev Feb 26, 2019
b7202a7
ENH: Added PyArray_NewLikeArrayWithShape()
pentschev Feb 26, 2019
013cbce
BUG: Fix for PyArray_NewLikeArrayWithShape strides and ndim == 0
pentschev Feb 27, 2019
807f512
REL: Updates for C-API, version 1.17.x
pentschev Feb 27, 2019
95bbfd0
Revert "REL: Updates for C-API, version 1.17.x"
pentschev Mar 13, 2019
43b9828
Revert exposing PyArray_NewLikeArrayWithShape on C-API
pentschev Mar 13, 2019
fa7fd75
DOC: fix versionadded for *_like() shape argument
pentschev Mar 13, 2019
d57e6d3
STY: add missing spaces in array initializers
pentschev Mar 13, 2019
f1b3e91
ENH: empty_like raises ValueError
pentschev Mar 16, 2019
d24ac10
TST: test for exception of *_like() functions
pentschev Mar 16, 2019
ec26417
DOC: release note for shape argument in *_like() functions
pentschev Mar 16, 2019
40e7e9e
DOC: fix *_like() documentation on raises
pentschev Mar 17, 2019
928952d
BUG: *_like() raises for non-C/F-layout arrays
pentschev Mar 17, 2019
e394356
TST: change *_like() shapes to prevent NPY_RELAXED_STRIDE_DEBUG=1 fai…
pentschev Mar 17, 2019
d938fb9
Move empty_like() exception to C implementation
pentschev Mar 19, 2019
99a55e0
Merge branch 'master' into add-shape-to-like-array-creation
pentschev Mar 28, 2019
c087801
Update *_like() ValueError documentation
pentschev Apr 4, 2019
db7614b
Merge remote-tracking branch 'upstream/master' into add-shape-to-like…
pentschev Apr 5, 2019
669ea71
Rearrange stride computation for *_like() if new shape and order='K'
pentschev Apr 10, 2019
f53afbe
Change handling of order= for *_like()
pentschev Apr 19, 2019
c3ac08e
Merge branch 'master' into add-shape-to-like-array-creation
pentschev Apr 19, 2019
695b836
Fix *_like() tests
pentschev Apr 19, 2019
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DOC: release note for shape argument in *_like() functions
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@pentschev
pentschev committed Mar 16, 2019
commit ec264171ff43693c306ba0cf29d088d02412a166
9 changes: 9 additions & 0 deletions doc/release/1.17.0-notes.rst
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Expand Up @@ -75,6 +75,15 @@ divmod operation is now supported for two ``timedelta64`` operands
The divmod operator now handles two ``np.timedelta64`` operands, with
type signature mm->qm.

``np.empty_like`` and related functions now accept a ``shape`` argument
-----------------------------------------------------------------------
``np.empty_like``, ``np.full_like``, ``np.ones_like`` and ``np.zeros_like`` now
accept a ``shape`` keyword argument, which can be used to create a new array
as the prototype, overriding its shape as well. This is particularly useful
when combined with the ``__array_function__`` protocol, allowing the creation
of new arbitrary-shape arrays from NumPy-like libraries when such an array
is used as the prototype.


Improvements
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