Update dependency numpy to v1.26.1 #46
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This PR contains the following updates:
1.24.4->1.26.1Release Notes
numpy/numpy (numpy)
v1.26.1Compare Source
NumPy 1.26.1 Release Notes
NumPy 1.26.1 is a maintenance release that fixes bugs and regressions
discovered after the 1.26.0 release. In addition, it adds new
functionality for detecting BLAS and LAPACK when building from source.
Highlights are:
The 1.26.release series is the last planned minor release series before
NumPy 2.0. The Python versions supported by this release are 3.9-3.12.
Build system changes
Improved BLAS/LAPACK detection and control
Auto-detection for a number of BLAS and LAPACK is now implemented for
Meson. By default, the build system will try to detect MKL, Accelerate
(on macOS >=13.3), OpenBLAS, FlexiBLAS, BLIS and reference BLAS/LAPACK.
Support for MKL was significantly improved, and support for FlexiBLAS
was added.
New command-line flags are available to further control the selection of
the BLAS and LAPACK libraries to build against.
To select a specific library, use the config-settings interface via
piporpypa/build. E.g., to selectlibblas/liblapack, use:This works not only for the libraries named above, but for any library
that Meson is able to detect with the given name through
pkg-configorCMake.
Besides
-Dblasand-Dlapack, a number of other new flags areavailable to control BLAS/LAPACK selection and behavior:
-Dblas-orderand-Dlapack-order: a list of library names tosearch for in order, overriding the default search order.
-Duse-ilp64: if set totrue, use ILP64 (64-bit integer) BLAS andLAPACK. Note that with this release, ILP64 support has been extended
to include MKL and FlexiBLAS. OpenBLAS and Accelerate were supported
in previous releases.
-Dallow-noblas: if set totrue, allow NumPy to build with itsinternal (very slow) fallback routines instead of linking against an
external BLAS/LAPACK library. The default for this flag may be
changed to ``true`` in a future 1.26.x release, however for
1.26.1 we'd prefer to keep it as ``false`` because if failures
to detect an installed library are happening, we'd like a bug
report for that, so we can quickly assess whether the new
auto-detection machinery needs further improvements.
-Dmkl-threading: to select the threading layer for MKL. There arefour options:
seq,iomp,gompandtbb. The default isauto, which selects from those four as appropriate given theversion of MKL selected.
-Dblas-symbol-suffix: manually select the symbol suffix to use forthe library - should only be needed for linking against libraries
built in a non-standard way.
New features
numpy._coresubmodule stubsnumpy._coresubmodule stubs were added to provide compatibility withpickled arrays created using NumPy 2.0 when running Numpy 1.26.
Contributors
A total of 13 people contributed to this release. People with a "+" by
their names contributed a patch for the first time.
Pull requests merged
A total of 20 pull requests were merged for this release.
-march=native...use-compute-creditsfor Cirrus.NumpyUnpicklerfor backportingnumpy._corestubs. RemoveNumpyUnpicklerChecksums
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v1.26.0Compare Source
NumPy 1.26.0 Release Notes
The NumPy 1.26.0 release is a continuation of the 1.25.x release cycle
with the addition of Python 3.12.0 support. Python 3.12 dropped
distutils, consequently supporting it required finding a replacement for
the setup.py/distutils based build system NumPy was using. We have
chosen to use the Meson build system instead, and this is the first
NumPy release supporting it. This is also the first release that
supports Cython 3.0 in addition to retaining 0.29.X compatibility.
Supporting those two upgrades was a large project, over 100 files have
been touched in this release. The changelog doesn't capture the full
extent of the work, special thanks to Ralf Gommers, Sayed Adel, Stéfan
van der Walt, and Matti Picus who did much of the work in the main
development branch.
The highlights of this release are:
The Python versions supported in this release are 3.9-3.12.
New Features
Array API v2022.12 support in
numpy.array_apinumpy.array_apinow full supports thev2022.12 version of the array API standard. Note that this does not
yet include the optional
fftextension in the standard.(gh-23789)
Support for the updated Accelerate BLAS/LAPACK library
Support for the updated Accelerate BLAS/LAPACK library, including ILP64
(64-bit integer) support, in macOS 13.3 has been added. This brings
arm64 support, and significant performance improvements of up to 10x for
commonly used linear algebra operations. When Accelerate is selected at
build time, the 13.3+ version will automatically be used if available.
(gh-24053)
mesonbackend forf2pyf2pyin compile mode (i.e.f2py -c) now accepts the--backend mesonoption. This is the default option for Python3.12on-wards. Older versions will still default to
--backend distutils.To support this in realistic use-cases, in compile mode
f2pytakes a--depflag one or many times which maps todependency()calls in themesonbackend, and does nothing in thedistutilsbackend.There are no changes for users of
f2pyonly as a code generator, i.e.without
-c.(gh-24532)
bind(c)support forf2pyBoth functions and subroutines can be annotated with
bind(c).f2pywill handle both the correct type mapping, and preserve the unique label
for other
Cinterfaces.Note:
bind(c, name = 'routine_name_other_than_fortran_routine')isnot honored by the
f2pybindings by design, sincebind(c)with thenameis meant to guarantee only the same name inCandFortran,not in
PythonandFortran.(gh-24555)
Improvements
iso_c_bindingsupport forf2pyPreviously, users would have to define their own custom
f2cmapfile touse type mappings defined by the Fortran2003
iso_c_bindingintrinsicmodule. These type maps are now natively supported by
f2py(gh-24555)
Build system changes
In this release, NumPy has switched to Meson as the build system and
meson-python as the build backend. Installing NumPy or building a wheel
can be done with standard tools like
pipandpypa/build. Thefollowing are supported:
pip install numpyor (in a cloned repo)pip install .python -m build(preferred), orpip wheel .pip install -e . --no-build-isolationspin:
spin build.All the regular
pipandpypa/buildflags (e.g.,--no-build-isolation) should work as expected.NumPy-specific build customization
Many of the NumPy-specific ways of customizing builds have changed. The
NPY_*environment variables which control BLAS/LAPACK, SIMD,threading, and other such options are no longer supported, nor is a
site.cfgfile to select BLAS and LAPACK. Instead, there arecommand-line flags that can be passed to the build via
pip/build'sconfig-settings interface. These flags are all listed in the
meson_options.txtfile in the root of the repo. Detailed documentedwill be available before the final 1.26.0 release; for now please see
the SciPy "building from source" docs
since most build customization works in an almost identical way in SciPy as it
does in NumPy.
Build dependencies
While the runtime dependencies of NumPy have not changed, the build
dependencies have. Because we temporarily vendor Meson and meson-python,
there are several new dependencies - please see the
[build-system]section of
pyproject.tomlfor details.Troubleshooting
This build system change is quite large. In case of unexpected issues,
it is still possible to use a
setup.py-based build as a temporaryworkaround (on Python 3.9-3.11, not 3.12), by copying
pyproject.toml.setuppytopyproject.toml. However, please open anissue with details on the NumPy issue tracker. We aim to phase out
setup.pybuilds as soon as possible, and therefore would like to seeall potential blockers surfaced early on in the 1.26.0 release cycle.
Contributors
A total of 20 people contributed to this release. People with a "+" by
their names contributed a patch for the first time.
Pull requests merged
A total of 59 pull requests were merged for this release.
_NestedSequence.__getitem__signatureextbuild.pyfrom main.asv devhas been removed, useasv run._umath_linalgdependenciesbindingdirective to "False".castingkeyword tonp.clipfromnumeric.pyiiso_c_bindingtype maps and fixbind(c)...binary_reprto accept any object implementing...dtypeandgenerichashabletyping.assert_typemesonbackend forf2pyspin docs...Checksums
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v1.25.2Compare Source
NumPy 1.25.2 Release Notes
NumPy 1.25.2 is a maintenance release that fixes bugs and regressions
discovered after the 1.25.1 release. This is the last planned release in
the 1.25.x series, the next release will be 1.26.0, which will use the
meson build system and support Python 3.12. The Python versions
supported by this release are 3.9-3.11.
Contributors
A total of 13 people contributed to this release. People with a "+" by
their names contributed a patch for the first time.
Pull requests merged
A total of 19 pull requests were merged for this release.
-ftrapping-mathwith Clang on macOSnp.__all__getenvcall used for memory policy warningChecksums
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v1.25.1Compare Source
v1.25.0Compare Source
NumPy 1.25.0 Release Notes
The NumPy 1.25.0 release continues the ongoing work to improve the
handling and promotion of dtypes, increase the execution speed, and
clarify the documentation. There has also been work to prepare for the
future NumPy 2.0.0 release, resulting in a large number of new and
expired deprecation. Highlights are:
@=).We will be releasing a NumPy 1.26 when Python 3.12 comes out. That is
needed because distutils has been dropped by Python 3.12 and we will be
switching to using meson for future builds. The next mainline release
will be NumPy 2.0.0. We plan that the 2.0 series will still support
downstream projects built against earlier versions of NumPy.
The Python versions supported in this release are 3.9-3.11.
Deprecations
np.core.MachAris deprecated. It is private API. In names definedin
np.coreshould generally be considered private.(gh-22638)
np.finfo(None)is deprecated.(gh-23011)
np.round_is deprecated. Usenp.roundinstead.(gh-23302)
np.productis deprecated. Usenp.prodinstead.(gh-23314)
np.cumproductis deprecated. Usenp.cumprodinstead.(gh-23314)
np.sometrueis deprecated. Usenp.anyinstead.(gh-23314)
np.alltrueis deprecated. Usenp.allinstead.(gh-23314)
Only ndim-0 arrays are treated as scalars. NumPy used to treat all
arrays of size 1 (e.g.,
np.array([3.14])) as scalars. In thefuture, this will be limited to arrays of ndim 0 (e.g.,
np.array(3.14)). The following expressions will report adeprecation warning:
(gh-10615)
numpy.find_common_typeis now deprecated and its useshould be replaced with either
numpy.result_typeornumpy.promote_types. Most users leave the secondscalar_typesargument tofind_common_typeas[]in which casenp.result_typeandnp.promote_typesare both faster and morerobust. When not using
scalar_typesthe main difference is thatthe replacement intentionally converts non-native byte-order to
native byte order. Further,
find_common_typereturnsobjectdtype rather than failing promotion. This leads to differences when
the inputs are not all numeric. Importantly, this also happens for
e.g. timedelta/datetime for which NumPy promotion rules are
currently sometimes surprising.
When the
scalar_typesargument is not[]things are morecomplicated. In most cases, using
np.result_typeand passing thePython values
0,0.0, or0jhas the same result as usingint,float, orcomplexinscalar_types.When
scalar_typesis constructed,np.result_typeis the correctreplacement and it may be passed scalar values like
np.float32(0.0). Passing values other than 0, may lead tovalue-inspecting behavior (which
np.find_common_typenever usedand NEP 50 may change in the future). The main possible change in
behavior in this case, is when the array types are signed integers
and scalar types are unsigned.
If you are unsure about how to replace a use of
scalar_typesorwhen non-numeric dtypes are likely, please do not hesitate to open a
NumPy issue to ask for help.
(gh-22539)
Expired deprecations
np.core.macharandnp.finfo.macharhave been removed.(gh-22638)
+arrwill now raise an error when the dtype is not numeric (andpositive is undefined).
(gh-22998)
A sequence must now be passed into the stacking family of functions
(
stack,vstack,hstack,dstackandcolumn_stack).(gh-23019)
np.clipnow defaults to same-kind casting. Falling back to unsafecasting was deprecated in NumPy 1.17.
(gh-23403)
np.clipwill now propagatenp.nanvalues passed asminormax. Previously, a scalar NaN was usually ignored. This wasdeprecated in NumPy 1.17.
(gh-23403)
The
np.dualsubmodule has been removed.(gh-23480)
NumPy now always ignores sequence behavior for an array-like
(defining one of the array protocols). (Deprecation started NumPy
1.20)
(gh-23660)
The niche
FutureWarningwhen casting to a subarray dtype inastypeor the array creation functions such asasarrayis nowfinalized. The behavior is now always the same as if the subarray
dtype was wrapped into a single field (which was the workaround,
previously). (FutureWarning since NumPy 1.20)
(gh-23666)
==and!=warnings have been finalized. The==and!=operators on arrays now always:
raise errors that occur during comparisons such as when the
arrays have incompatible shapes
(
np.array([1, 2]) == np.array([1, 2, 3])).return an array of all
Trueor allFalsewhen values arefundamentally not comparable (e.g. have different dtypes). An
example is
np.array(["a"]) == np.array([1]).This mimics the Python behavior of returning
FalseandTruewhen comparing incompatible types like
"a" == 1and"a" != 1. For a long time these gaveDeprecationWarningorFutureWarning.(gh-22707)
Nose support has been removed. NumPy switched to using pytest in
2018 and nose has been unmaintained for many years. We have kept
NumPy's nose support to avoid breaking downstream projects who
might have been using it and not yet switched to pytest or some
other testing framework. With the arrival of Python 3.12, unpatched
nose will raise an error. It is time to move on.
Decorators removed:
These are not to be confused with pytest versions with similar
names, e.g., pytest.mark.slow, pytest.mark.skipif,
pytest.mark.parametrize.
Functions removed:
(gh-23041)
The
numpy.testing.utilsshim has been removed. Importing from thenumpy.testing.utilsshim has been deprecated since 2019, the shimhas now been removed. All imports should be made directly from
numpy.testing.(gh-23060)
The environment variable to disable dispatching has been removed.
Support for the
NUMPY_EXPERIMENTAL_ARRAY_FUNCTIONenvironmentvariable has been removed. This variable disabled dispatching with
__array_function__.(gh-23376)
Support for
y=as an alias ofout=has been removed. Thefix,isposinfandisneginffunctions allowed usingy=as a(deprecated) alias for
out=. This is no longer supported.(gh-23376)
Compatibility notes
The
busday_countmethod now correctly handles cases where thebegindatesis later in time than theenddates. Previously, theenddateswas included, even though the documentation states it isalways excluded.
(gh-23229)
When comparing datetimes and timedelta using
np.equalornp.not_equalnumpy previously allowed the comparison withcasting="unsafe". This operation now fails. Forcing the outputdtype using the
dtypekwarg can make the operation succeed, but wedo not recommend it.
(gh-22707)
When loading data from a file handle using
np.load, if the handleis at the end of file, as can happen when reading multiple arrays by
calling
np.loadrepeatedly, numpy previously raisedValueErrorif
allow_pickle=False, andOSErrorifallow_pickle=True. Nowit raises
EOFErrorinstead, in both cases.(gh-23105)
np.padwithmode=wrappads with strict multiples of original dataCode based on earlier version of
padthat usesmode="wrap"willreturn different results when the padding size is larger than initial
array.
np.padwithmode=wrapnow always fills the space with strictmultiples of original data even if the padding size is larger than the
initial array.
(gh-22575)
Cython
long_tandulong_tremovedlong_tandulong_twere aliases forlonglong_tandulonglong_tand confusing (a remainder from of Python 2). This change may lead to
the errors:
We recommend use of bit-sized types such as
cnp.int64_tor the use ofcnp.intp_twhich is 32 bits on 32 bit systems and 64 bits on 64 bitsystems (this is most compatible with indexing). If C
longis desired,use plain
longornpy_long.cnp.int_tis alsolong(NumPy'sdefault integer). However,
longis 32 bit on 64 bit windows and we maywish to adjust this even in NumPy. (Please do not hesitate to contact
NumPy developers if you are curious about this.)
(gh-22637)
Changed error message and type for bad
axesargument toufuncThe error message and type when a wrong
axesvalue is passed toufunc(..., axes=[...])has changed. The message is now moreindicative of the problem, and if the value is mismatched an
AxisErrorwill be raised. ATypeErrorwill still be raised forinvalidinput types.
(gh-22675)
Array-likes that define
__array_ufunc__can now override ufuncs if used aswhereIf the
wherekeyword argument of anumpy.ufunc{.interpreted-textrole="class"} is a subclass of
numpy.ndarray{.interpreted-textrole="class"} or is a duck type that defines
numpy.class.__array_ufunc__{.interpreted-text role="func"} it canoverride the behavior of the ufunc using the same mechanism as the input
and output arguments. Note that for this to work properly, the
where.__array_ufunc__implementation will have to unwrap thewhereargument to pass it into the default implementation of the
ufuncor,for
numpy.ndarray{.interpreted-text role="class"} subclasses beforeusing
super().__array_ufunc__.(gh-23240)
Compiling against the NumPy C API is now backwards compatible by default
NumPy now defaults to exposing a backwards compatible subset of the
C-API. This makes the use of
oldest-supported-numpyunnecessary.Libraries can override the default minimal version to be compatible with
using:
before including NumPy or by passing the equivalent
-Doption to thecompiler. The NumPy 1.25 default is
NPY_1_19_API_VERSION. Because theNumPy 1.19 C API was identical to the NumPy 1.16 one resulting programs
will be compatible with NumPy 1.16 (from a C-API perspective). This
default will be increased in future non-bugfix releases. You can still
compile against an older NumPy version and run on a newer one.
For more details please see
for-downstream-package-authors{.interpreted-text role="ref"}.(gh-23528)
New Features
np.einsumnow accepts arrays withobjectdtypeThe code path will call python operators on object dtype arrays, much
like
np.dotandnp.matmul.(gh-18053)
Add support for inplace matrix multiplication
It is now possible to perform inplace matrix multiplication via the
@=operator.
(gh-21120)
Added
NPY_ENABLE_CPU_FEATURESenvironment variableUsers may now choose to enable only a subset of the built CPU features
at runtime by specifying the
NPY_ENABLE_CPU_FEATURESenvironment variable. Note that these specified features must be outside
the baseline, since those are always assumed. Errors will be raised if
attempting to enable a feature that is either not supported by your CPU,
or that NumPy was not built with.
(gh-22137)
NumPy now has an
np.exceptionsnamespaceNumPy now has a dedicated namespace making most exceptions and warnings
available. All of these remain available in the main namespace, although
some may be moved slowly in the future. The main reason for this is to
increase discoverability and add future exceptions.
(gh-22644)
np.linalgfunctions return NamedTuplesnp.linalgfunctions that return tuples now return namedtuples. Thesefunctions are
eig(),eigh(),qr(),slogdet(), andsvd(). Thereturn type is unchanged in instances where these functions return
non-tuples with certain keyword arguments (like
svd(compute_uv=False)).(gh-22786)
String functions in
np.charare compatible with NEP 42 custom dtypesCustom dtypes that represent unicode strings or byte strings can now be
passed to the string functions in
np.char.(gh-22863)
String dtype instances can be created from the string abstract dtype classes
It is now possible to create a string dtype instance with a size without
using the string name of the dtype. For example,
type(np.dtype('U'))(8)will create a dtype that is equivalent tonp.dtype('U8'). This feature is most useful when writing generic codedealing with string dtype classes.
(gh-22963)
Fujitsu C/C++ compiler is now supported
Support for Fujitsu compiler has been added. To build with Fujitsu
compiler, run:
SSL2 is now supported
Support for SSL2 has been added. SSL2 is a library that provides
OpenBLAS compatible GEMM functions. To enable SSL2, it need to edit
site.cfg and build with Fujitsu compiler. See site.cfg.example.
(gh-22982)
Improvements
NDArrayOperatorsMixinspecifies that it has no__slots__The
NDArrayOperatorsMixinclass now specifies that it contains no__slots__, ensuring that subclasses can now make use of this featurein Python.
(gh-23113)
Fix power of complex zero
np.powernow returns a different result for0^{non-zero}for complexnumbers. Note that the value is only defined when the real part of the
exponent is larger than zero. Previously, NaN was returned unless the
imaginary part was strictly zero. The return value is either
0+0jor0-0j.(gh-18535)
New
DTypePromotionErrorNumPy now has a new
DTypePromotionErrorwhich is used when two dtypescannot be promoted
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