1.19.2:
TST: Change aarch64 to arm64 in travis.yml.
MAINT: Configure hypothesis in ``np.test()`` for determinism,...
BLD: pin setuptools < 49.2.0
ENH: Add NumPy declarations to be used by Cython 3.0+
BUG: Remove non-threadsafe sigint handling from fft calculation
BUG: core: fix ilp64 blas dot/vdot/... for strides > int32 max
DOC: Use SPDX license expressions with correct license
DOC: Fix the link to the quick-start in the old API functions
BUG: fix pickling of arrays larger than 2GiB
1.19.1
* MAINT, CI: disable Shippable cache
* MAINT: Replace `PyUString_GET_SIZE` with `PyUnicode_GetLength`.
* REL: Fix outdated docs link
* BUG: raise IEEE exception on AIX
* BUG: Fix bug in AVX complex absolute while processing array of...
* TST: Add extra debugging information to CPU features detection
* BLD: Add CPU entry for Emscripten / WebAssembly
* TST: Disable Python 3.9-dev testing.
* MAINT: Disable use_hugepages in case of ValueError
* BUG: Fix PyArray_SearchSorted signature.
* MAINT: Fixes for deprecated functions in scalartypes.c.src
* MAINT: Remove unneeded call to PyUnicode_READY
* MAINT: Fix deprecated functions in scalarapi.c
* BLD, ENH: Add RPATH support for AIX
* BUG: Fix default fallback in genfromtxt
* BUG: Added missing return after raising error in methods.c
* BLD: update cython to 0.29.21
* MAINT: setuptools 49.2.0 emits a warning, avoid it
* BUG: Validate output size in bin- and multinomial
* BLD, MAINT: Pin setuptools
* DOC: Reconstruct Testing Guideline.
* TST, BUG: Re-raise MemoryError exception in test_large_zip's...
* BUG,DOC: Fix bad MPL kwarg.
* BUG: Fix string/bytes to complex assignment
* REL: Prepare for NumPy 1.19.1 release
1.19.0
* ENH: add identity kwarg to frompyfunc
* TST: check exception details in refguide_check.py
* ENH: improve runtime detection of CPU features
* TST: Add assert_array_equal test for big integer arrays.
* MAINT: Remove unnecessary 'from __future__ import ...' statements
* MAINT: Fix typos and copy edit NEP-0030.
* DOC: NumPy for absolute beginners tutorial
* NEP: Proposal for array creation dispatching with `__array_function__`
* ENH: Use AVX-512F for np.maximum and np.minimum
* BUG: Fix numpy.random.dirichlet returns NaN for small 'alpha'...
* API: Use `ResultType` in `PyArray_ConvertToCommonType`
* MAINT,API: ignore and NULL fasttake/fastputmask ArrFuncs slots
* BUG: Make ``ediff1d`` kwarg casting consistent
* DOC: linalg: Include information about scipy.linalg.
* BUG: Use ``__array__`` during dimension discovery
* MAINT: cleanup compat.py3k.py
* ENH: f2py: improve error messages
* [DOC] LaTeX: fix preamble (closes 15026)
* BUG: add endfunction, endsubroutine to valid fortran end words
* TST: Add test for object method (and general unary) loops
* REL: Update master after 1.18.x branch.
* DOC: Update HOWTO_RELEASE.rst.txt
* API, DOC: change names to multivariate_hypergeometric, improve...
* DOC: Fix statement about norms
* MAINT: follow-up cleanup for blas64 PR
* DOC: add docstrings to refguide-check
* Revert "DEP: issue deprecation warning when creating ragged array...
* ENH: add support for ILP64 OpenBLAS (without symbol suffix)
* DOC: correct version for NaT sort
* TST: Check requires_memory immediately before the test
* MAINT: core: Fix a very long line in the ufunc docstrings.
* BUG: test, fix flexible dtype conversion on class with __array__
* TST: add value to pytest.ini for pytest6 compatibility
* MAINT: Ragged cleanup
* DOC: bring the out parameter docstring into line with ufuncs
* ENH: f2py: add --f2cmap option for specifying the name of .f2py_f2cmap
* TST: add BLAS ILP64 run in Travis & Azure
* MAINT: Fix expm1 instability for small complex numbers.
* MAINT: random: Remove a few unused imports from test files.
* MAINT: Bump pytest from 5.3.1 to 5.3.2
* API: remove undocumented use of __array__(dtype, context)
* MAINT,CI: fix signed-unsigned comparison warning
* DOC: Update documentation of np.clip
* DOC: Remove reference to basic RNG
* MAINT: Fix randint 0d limits and other 0d cleanups
* DOC: Fix typos, via a Levenshtein-style corrector
* MAINT: CI: Clean up .travis.yml
* DOC: Correct choice signature
* DOC: Correct documentation in choice
* TST: shippable build efficiency
* BUG: ensure reduction output matches input along non-reduction...
* REL: Update master after NumPy 1.18.0 release.
* MAINT: Update pavement.py for towncrier.
* DOC: update cholesky docstring regarding input checking
* DOC: update documentation on how to build NumPy
* DOC: add moved modules to 1.18 release note
* MAINT: Update required cython version to 0.29.14.
* BUG: searchsorted: passing the keys as a keyword argument
* BUG: use tmp dir and check version for cython test
* TST: improve assert message of assert_array_max_ulp
* MAINT: unskip test on win32
* ENH: Add property-based tests using Hypothesis
* BUG: test, fix for c++ compilation
* DOC: Adding instructions for building documentation to developer...
* DOC: NEP 37: A dispatch protocol for NumPy-like modules
* MAINT: Do not use private Python function in testing
* DOC: Improvements to Quickstart Tutorial.
* BUG: distutils: fix msvc+gfortran openblas handling corner case
* BUG: lib: Fix handling of integer arrays by gradient.
* MAINT: lib: A little bit of clean up for the new year.
* REL: Update master after NumPy 1.16.6 and 1.17.5 releases.
* DEP: records: Deprecate treating shape=0 as shape=None
* ENH: build fallback lapack_lite with 64-bit integers on 64-bit...
* MAINT: linalg: use symbol suffix in fallback lapack_lite
* DOC: typo in release.rst
* NEP: universal SIMD NEP 38
* MAINT: Remove unused int_asbuffer
* MAINT: Cleaning up PY_MAJOR_VERSION/PY_VERSION_HEX
* MAINT: Clean up more PY_VERSION_HEX
* MAINT: Remove implicit inheritance from object class
* MAINT: only add --std=c99 where needed
* MAINT: Remove Python2 newbuffer getbuffer
* MAINT: Py3K array_as_buffer and gentype_as_buffer
* MAINT: Remove references to non-existent sys.exc_clear()
* DOC: Update HOWTO_RELEASE.rst
* MAINT: cleanup use of sys.exc_info
* MAINT: Eliminate some calls to `eval`
* MAINT: Improve const-correctness of shapes and strides
* DOC: clarify the effect of None parameters passed to ndarray.view
* MAINT: Improve const-correctness of string arguments
* MAINT: Delete numpy.distutils.compat
* MAINT: Implement keyword-only arguments as syntax
* MAINT: Remove FIXME comments introduced in the previous commit
* MAINT: Work with unicode strings in `dtype('i8,i8')`
* BUG: Use PyDict_GetItemWithError() instead of PyDict_GetItem()
* MAINT: Remove python2 array_{get,set}slice
* DOC: Add some missing functions in the list of available ufuncs.
* MAINT: Tidy PyArray_DescrConverter
* MAINT: remove duplicated if statements between DescrConverters
* BUG: Fix PyArray_DescrAlignConverter2 on tuples
* MAINT: Remove Python2 ndarray.__unicode__
* MAINT: Remove Python 2 divide
* MAINT: minor formatting fixups for NEP-37
* MAINT: Post NumPy 1.18.1 update.
* MAINT: travis-ci: Update CI scripts.
* BENCH: Add benchmark for small array coercions
* BUILD: use standard build of OpenBLAS for aarch64, ppc64le, s390x
* BENCH: Add basic benchmarks for take and putmask
* MAINT: Cleanup most PY3K #ifdef guards
* DOC: BLD: add empty release notes for 1.19.0 to fix doc build...
* MAINT: Use a simpler return convention for internal functions
* MAINT: Simplify np.int_ inheritance
* DOC" Update np.full docstring.
* MAINT: Express PyArray_DescrAlignConverter in terms of _convert_from_any
* MAINT: Push down declarations in _convert_from_*
* MAINT: C code simplifications
* BUG: Add missing error handling to _convert_from_list
* DOC: Added tutorial about linear algebra on multidimensional...
* MAINT: Refactor dtype conversion functions to be more similar
* DOC: Updating f2py docs to python 3 and fixing some typos
* MAINT: Remove NPY_PY3K constant
* MAINT: Remove sys.version checks in tests
* MAINT: cleanup sys.version dependant code
* MAINT: Ensure `_convert_from_*` functions set errors
* MAINT: Avoid escaping unicode in error messages
* MAINT: Change file extension of ma README to rst.
* BUG: fix NameError in clip nan propagation tests
* NEP: document reimplementation of NEP 34
* MAINT: fix typos
* TST: move pypy CI to ubuntu 18.04
* TST: move _no_tracing to testing._private, remove testing.support
* BUG: Add some missing C error handling
* MAINT: Remove sys.version checks
* DEP: Deprecate `->f->fastclip` at registration time
* DOC: document site.cfg.example
* MAINT: Fix mistype in histogramdd docstring
* DOC, BLD: reword release note, upgrade sphinx version
* MAINT: Remove unnecessary calls to PyArray_DATA from binomial...
* MAINT: Bump pytest from 5.3.2 to 5.3.3
* MAINT: Remove six
* MAINT: Revise imports from collections.abc module
* MAINT: remove internal functions required to handle Python2/3...
* MAINT: Remove other uses of six module
* MAINT: resolve pyflake F403 'from module import *' used
* MAINT: Update tox for supported Python versions
* MAINT: simd: Avoid signed comparison warning
* DOC: Updating Chararry Buffer datatypes
* TST: Simplify unicode test
* MAINT: Use `with open` when possible
* MAINT: Cleanup python2 references
* MAINT: Python2 Cleanups
* DEP: add PendingDeprecation to matlib.py funky namespace
* BUG, MAINT: Stop using the error-prone deprecated Py_UNICODE...
* MAINT: clean up some macros in scalarapi.c
* MAINT/BUG: Fixups to scalar base classes
* BUG: np.load does not handle empty array with an empty descr
* MAINT: Revise imports from urllib modules
* MAINT: Remove Python3 DeprecationWarning from pytest.ini
* MAINT: cleanup _pytesttester.py
* BUG: Flags should not contain spaces
* MAINT: Clean up, mostly unused imports.
* BUG/TEST: core: Fix an undefined name in a test.
* MAINT: Replace basestring with str.
* ENH: Use AVX-512F for complex number arithmetic, absolute, square...
* MAINT: Remove Python2 workarounds
* MAINT: Cleanup references to python2
* MAINT, DOC: Remove use of old Python __builtin__, now known as...
* ENH: Make use of ExitStack in npyio.py
* MAINT: Inline gentype_getreadbuf
* MAINT: Use f-strings for clarity.
* DEP: Schedule unused C-API functions for removal/disabling
* DOC: Improve ndarray.ctypes example
* DOC: distutils: Add a docstring to show_config().
* MAINT: Use contextmanager in _run_doctests
* MAINT: Updated polynomial to use fstrings
* DOC: Fix Incorrect document in Beginner Docs
* MAINT: Update core.py with fstrings (issue 15420)
* DOC: fix docstrings so `python tools/refguide-check --rst <file>...
* MAINT: Tidy macros in scalar_new
* MAINT: use 'yield from <expr>' for simple cases
* MAINT: Bump pytest from 5.3.3 to 5.3.4
* BUG: Reject nonsense arguments to scalar constructors
* DOC: Update refguide_check note on how to skip code
* MAINT: Simplify `np.object_.__new__`
* STY,MAINT: avoid 'multiple imports on one line'
* MAINT: Cleanup duplicate line in refguide_check
* MAINT: cleanup unused imports; avoid redefinition of imports
* BUG: Fix for SVD not always sorted with hermitian=True
* MAINT: Simplify scalar __new__ some more
* MAINT: Eliminate messy _WORK macro
* update result of rng.random(3) to current rng output
* DOC: Correct get_state doc
* MAINT: Use `.identifier = val` to fill type structs
* [DOC] Mention behaviour of np.squeeze with one element
* ENH: fixing generic error messages to be more specific in multiarray/descriptor.c
* BUG: Fixing result of np quantile edge case
* TST: mark the top 3 slowest tests to save ~10 seconds
* MAINT: Bump pytest from 5.3.4 to 5.3.5
* MAINT: Use True/False instead of 1/0 in np.dtype.__reduce__
* MAINT: Do not allow `copyswap` and friends to fail silently
* DOC: Remove duplicated code in true_divide docstring
* NEP 40: Informational NEP about current DTypes
* DOC: Update unique docstring example
* MAINT: Large overhead in some random functions
* TST: Fix missing output in refguide-check
* MAINT: Simplify arraydescr_richcompare
* MAINT: Fix internal misuses of `NPY_TITLE_KEY`
* DOC: Update instructions for building/archiving docs.
* BUG: Fix inline assembly that detects cpu features on x86(32bit)
* update doctests, small bugs and changes of repr
* DEP: Do not allow "abstract" dtype conversion/creation
* DOC: Minor copyediting on NEP 37.
* MAINT: Extract repeated code to a helper function
* NEP: edit and move NEP 38 to accepted status
* MAINT: Refresh Doxyfile and modernize numpyfilter.py
* TST: Accuracy test float32 sin/cos/exp/log for AVX platforms
* DOC: Improve the `numpy.linalg.eig` docstring.
* NEP 44 - Restructuring the NumPy Documentation
* TST: (Travis CI) Use full python3-dbg path for virtual env creation
* BUG, DOC: restore missing import
* DOC: Removing bad practices from quick start + some PEP8
* TST: Do not create symbolic link named gfortran.
* DOC: Document caveat in random.uniform
* DOC: numpy.clip is equivalent to minimum(..., maximum(...))
* MAINT: Bump cython from 0.29.14 to 0.29.15
* MAINT: Bump hypothesis from 5.3.0 to 5.5.4
* BLD: manylinux2010 docker reports machine=i686
* BUG: Ignore differences in NAN for computing ULP differences
* TST: use manylinux2010 docker instead of ubuntu
* TST: mask DeprecationWarning in xfailed test
* BUG: Fix bug in AVX-512F np.maximum and np.minimum
* BUG: Remove check requiring natural alignment of float/double...
* DOC: Add missing imports, definitions and dummy file
* DOC: Fix documentation for apply_along_axis
* DOC: fix printing, np., deprecation for refguide
* MAINT: Pull identical line out of conditional.
* DOC: remove broken link in f2py tutorial
* BLD: update openblas download to new location, use manylinux2010-base
* MAINT: AVX512 implementation with intrinsic for float64 input...
* BLD: update OpenBLAS to pre-0.3.9 version
* DOC: Refactor `np.polynomial` docs using `automodule`
* BUG: fix doctest exception messages
* MAINT: Added comment pointing FIXME to relevant PR.
* DOC: Make extension module wording more clear
* DOC: Improve np.finfo docs
* DOC: Improve Benchmark README with environment setup and more...
* MAINT: Bump hypothesis from 5.5.4 to 5.6.0
* NEP: move NEP 44 to accepted status
* DOC: Fix indexing docs to pass refguide
* MAINT: Test during import to detect bugs with Accelerate(MacOS)...
* MAINT: Add a fast path to var for complex input
* MAINT: Convert shebang from python to python3
* MAINT: replace optparse with argparse for 'doc' and 'tools' scripts
* DOC: Fix quickstart doc to pass refguide
* MAINT: Fixing typos in f2py comments and code.
* DOC: fix SVD tutorial to pass refguide
* MAINT: use list-based APIs to call subprocesses
* ENH: update numpy.linalg.multi_dot to accept an `out` argument
* TST: always use 'python -mpip' not 'pip'
* DOC: update datetime reference to pass refguide
* DOC: Fix coremath.rst to fix refguide_check
* DOC: fix remaining doc files for refguide_check
* BUG: fix logic error when nm fails on 32-bit
* TST: Remove nose from the test_requirements.txt file.
* DOC: Allow NEPs to link to python, numpy, scipy, and matplotlib...
* BUG: Guarantee array is in valid state after memory error occurs...
* MAINT: Remove non-native byte order from _var check.
* MAINT: Add better error handling in linalg.norm for vectors and...
* MAINT: doc: Remove doc/summarize.py
* BUG: lib: Handle axes with length 0 in np.unique.
* DOC: document inconsistency between the shape of data and mask...
* BUG, TST: fix f2py for PyPy, skip one test for PyPy
* MAINT: Fix swig tests issue
* MAINT: CI: Add an explicit 'pr' section to azure-pipelines.yml
* MAINT: Bump pytest from 5.3.5 to 5.4.1
* BUG,MAINT: Remove incorrect special case in string to number...
* REL: Update master after 1.18.2 release.
* ENH: Allow toggling madvise hugepage and fix default
* DOC: Fix runtests example in developer docs
* DEP: Make issubdtype consistent for types and dtypes
* MAINT: remove useless `global` statements
* BLD: Add requirements.txt file for building docs
* BUG: don't add 'public' or 'private' if the other one exists
* ENH: Use TypeError in `np.array` for python consistency
* BUG: Add basic __format__ for masked element to fix incorrect...
* TST: Add unit test for out=None of np.einsum
* MAINT: Cleanups to np.insert and np.delete
* BUG: Add error-checking versions of strided casts.
* DEP: Make `np.insert` and `np.delete` on 0d arrays with an axis...
* DOC: correct possible list lengths for `extobj` in ufunc calls
* DEP: Make np.delete on out-of-bounds indices an error
* DEP: Forbid passing non-integral index arrays to `insert` and...
* TST: Parametrize sort test
* TST: switch PyPy job with CPython
* TST: Remove code that is not supposed to warn out of warning...
* DEP: Do not cast boolean indices to integers in np.delete
* MAINT: simplify code that assumes str/unicode and int/long are...
* MAINT: pathlib and hashlib are in stdlib in Python 3.5+
* ENH: improved error message `IndexError: too many indices for...
* BUG: Fix IndexError for illegal axis in np.mean
* DOC: Minor fix to _hist_bin_fd documentation
* BUG,DEP: Make `scalar.__round__()` behave like pythons round
* DOC: First steps towards docs restructuring (NEP 44)
* DOC, TST: enable refguide_check in circleci
* DOC: fix typo in C-API reference
* DOC: Fix docstring for _hist_bin_auto.
* MAINT: Bump cython from 0.29.15 to 0.29.16
* DEP: Deprecate ndarray.tostring()
* TST: use draft OpenBLAS build
* BUG: Fix eigh and cholesky methods of numpy.random.multivariate_normal
* BUG: Check that `pvals` is 1D in `_generator.multinomial`.
* DOC: Add missing signature from nditer docstring
* BUG: Fix empty_like to respect shape=()
* BUG: Do not ignore empty tuple of strides in ndarray.__new__
* MAINT: Remove duplicated code in iotools.py
* BUG: Setting a 0d array's strides to themselves should be legal
* BUG: Respect itershape=() in nditer
* MAINT: Clean-up 'next = __next__' used for Python 2 compatibility
* TST: Run test_large_zip in a child process
* DOC: Add missing doc of numpy.ma.apply_over_axes in API list.
* DOC: Improve record module documentation
* DOC: Fixed order of items and link to mailing list in dev docs...
* BLD: report clang version on macOS
* MAINT: records: Remove private `format_parser._descr` attribute
* BUG: random: Disallow p=0 in negative_binomial
* ENH: Use sysconfig instead of probing Makefile
* DOC: Update np.copy docstring to include ragged case
* DOC: Correct private function name to PyArray_AdaptFlexibleDType
* MAINT: Fix capitalization in error message in `mtrand.pyx`
* DOC: Update np.rollaxis docstring
* BUG: fix AttributeError on accessing object in nested MaskedArray.
* BUG: Alpha parameter must be 1D in `generator.dirichlet`
* NEP: minor maintenance, update filename and fix a cross-reference
* MAINT: Bump hypothesis from 5.8.0 to 5.8.3
* TST: Add slow_pypy support
* DOC: Added note to angle function docstring about angle(0) being...
* MAINT/BUG: Cleanup and minor fixes to conform_reduce_result
* BUG: Avoid duplication in stack trace of `linspace(a, b, num=1.5)`
* BUG: Fix inf and NaN-warnings in half float `nextafter`
* MAINT: Remove 0d check for PyArray_ISONESEGMENT
* DEV: Pass additional runtests.py args to ASV
* DOC: Fix method documentation of function sort in MaskedArray
* NEP: Improve Value Based Casting paragraph in NEP 40
* DOC: add note on flatten ordering in matlab page
* TST: Add tests for the conversion utilities
* BUG: Unify handling of string enum converters
* MAINT: Replace npyiter_order_converter with PyArray_OrderConverter
* BUG: Fix lexsort axis check
* DOC: Clarify single-segment arrays in np reference
* DOC: Change import error "howto" to link to new troubleshooting...
* DOC: update first section of NEP 37 (``__array_function__`` downsides)
* REL: Update master after 1.18.3 release.
* MAINT: Bump hypothesis from 5.8.3 to 5.10.1
* DOC: initialise random number generator before first use in quickstart
* ENH: Fix exception causes in build_clib.py
* MAINT,TST: Move _repr_latex tests to test_printing.
* BUG: missing 'f' prefix for fstring
* ENH: Fix exception causes in build_ext.py
* DOC: Small typo fixes to NEP 40.
* DOC, BLD: update release howto and walkthrough for ananconda.org...
* ENH: Chained exceptions in linalg.py and polyutils.py
* MAINT: Chain exceptions in several places.
* MAINT: Chain exceptions in memmap.py and core.py
* BUG: Fix string to bool cast regression
* DOC: Added page describing how to contribute to the docs team
* DOC: add a note on sampling 2-D arrays to random.choice docstring
* BUG: random: Generator.integers(2**32) always returned 0.
* BLD: fix path to libgfortran on macOS
* DOC: Add axis to random module "new or different" docs
* DOC,BLD: Limit timeit iterations in random docs.
* DOC: add note on type casting to numpy.left_shift().
* DOC: improve development debugging doc
* DOC: tweak neps/scope.rst
* MAINT: Bump cython from 0.29.16 to 0.29.17
* MAINT: Bump hypothesis from 5.10.1 to 5.10.4
* TST: use latest released PyPy instead of nightly builds
* MAINT, DOC: Improve grammar on a comment in the quickstart
* NEP 41: Accept NEP 41 and add DType<->scalar duplication paragraph
* BLD: put openblas library in local directory on windows
* MAINT: Fix random.PCG64 signature
* DOC: Move misplaced news fragment for gh-13421
* DOC: Fix links for NEP 40 in NEP 41
* BUG: lib: Fix a problem with vectorize with default parameters.
* ENH: Better error message when ``bins`` has float value in ``histogramdd``.
* MAINT: Unify casting error creation (outside the iterator)
* BENCH: Default to building HEAD instead of master
* REL: Update master after NumPy 1.18.4 release
* DOC: Add VSCode help link to importerror troubleshooting
* CI: pin 32-bit manylinux2010 image tag
* MAINT: Bump pytz from 2019.3 to 2020.1
* BUG: Correct loop order in MT19937 jump
* CI: unpin 32-bit manylinux2010 image tag
* BUG: add missing numpy/__init__.pxd to the wheel
* BUG:Umath remove unnecessary include of simd.inc in fast_loop_macro.h
* DOC,BLD: Add :doc: to whitelisted roles in refguide_check.
* ENH: resync numpy/__init__.pxd with upstream
* ENH: allow choosing which manylinux artifact to download
* MAINT: Mark tests as a subpackage rather than data.
* Update Docs : point users of np.outer to np.multiply.outer
* DOC: Fix link to numpy docs in README.
* ENH: Allow pickle with protocol 5 when higher is requested
* MAINT: cleanups to _iotools.StringConverter
* DOC: Unify cross-references between array joining methods
* DOC: Improve docstring of ``numpy.core.records``
* DOC: update Code of Conduct committee
* MAINT: Bump hypothesis from 5.10.4 to 5.12.0
* MAINT: Bump pytest from 5.4.1 to 5.4.2
* DOC: warn about runtime of shares_memory
* ENH: backport scipy changes to openblas download script
* BUG: skip complex256 arcsinh precision test on glibc2.17
* MAINT: Chain exceptions and use NameError in np.bmat
* DOC,BLD: pin sphinx to <3.0 in doc_requirements.txt
* BUG: fix signature of PyArray_SearchSorted in __init__.pxd
* ENH: add manylinux1 openblas hashes
* DOC: Fix Generator.choice docstring
* DOC: Add PyDev instructions to troubleshooting doc
* DOC: Add Clang and MSVC to supported compilers list
* DOC: Warn about behavior of ptp with signed integers.
* DOC: Update the f2py section of the "Using Python as Glue" page.
* BUG: Add missing decref in fromarray error path
* ENH: Add tool for downloading release wheels from Anaconda.
* DOC: Fix typos and cosmetic issues
* REL: Prepare for the 1.19.0 release
* BUG: Fix tools/download-wheels.py.
* BUG: Require Python >= 3.6 in setup.py
* BUG: relpath fails for different drives on windows
* DOC: Fix documentation rendering,
* BUG: Don't segfault on bad __len__ when assigning. (gh-16327)
* MAINT: Stop Using PyEval_Call* and simplify some uses
* BLD: Avoid "visibility attribute not supported" warning.
* BUG: Allow attaching documentation twice in add_docstring
* MAINT: Remove f-strings in setup.py. (gh-16346)
* BUG: Indentation for docstrings
* BUG: Fix dtype leak in `PyArray_FromAny` error path
* ENH: Optimize Cpu feature detect in X86, fix for GCC on macOS...
* MAINT: core: Use a raw string for the fromstring docstring.
* MAINT: Make ctypes optional on Windows
* BUG: Fix small leaks in error path and ``empty_like`` with shape
* TST, MAINT: Fix detecting and testing armhf features
* DOC,BLD: Update sphinx conf to use xelatex.
* DOC,BLD: Update make dist html target.
* MAINT, DOC: add index for user docs.
* MAINT: support python 3.10
* DOC: Fix troubleshooting code snippet when env vars are empty
* REL: Prepare for the NumPy 1.19.0rc2 release.
* MAINT:ARMHF Fix detecting feature groups NEON_HALF and NEON_VFPV4
* BUG:random: Error when ``size`` is smaller than broadcast input...
* BUG: fix GCC 10 major version comparison
* BUG: Ensure SeedSequence 0-padding does not collide with spawn...
* BUG: fix sin/cos bug when input is strided array
* MAINT: Move and improve ``test_ignore_nan_ulperror``.
* REL: Update 1.19.0-changelog.rst for 1.19.0 release.
1.18.3:
BUG: Fix eigh and cholesky methods of numpy.random.multivariate_normalBUG,MAINT: Remove incorrect special case in string to number...
BUG: Guarantee array is in valid state after memory error occurs...
BUG: Check that `pvals` is 1D in `_generator.multinomial`.
BUG: Alpha parameter must be 1D in `generator.dirichlet`
1.18.2:
TST: move _no_tracing to testing._private
MAINT: Large overhead in some random functions
TST: Do not create gfortran link in azure Mac testing.
BUG: Added missing error check in `ndarray.__contains__`
MAINT: use list-based APIs to call subprocesses
REL: Prepare for 1.18.2 release.
BUG: fix logic error when nm fails on 32-bit
1.18.1:
MAINT: Update pavement.py for towncrier.
DOC: add moved modules to 1.18 release note
MAINT, DOC: Minor backports and updates for 1.18.x
TST: Add assert_array_equal test for big integer arrays
BUG: use tmp dir and check version for cython test
BUG: distutils: fix msvc+gfortran openblas handling corner case
BUG: remove -std=c99 for c++ compilation
MAINT: unskip test on win32
TST: add BLAS ILP64 run in Travis & Azure
MAINT: only add --std=c99 where needed
BUG: lib: Fix handling of integer arrays by gradient.
MAINT: Do not use private Python function in testing
REL: Prepare for the NumPy 1.18.1 release.
1.18.0:
DOC: added note to docstring of numpy.savez
BUG: Numpy scalar types sometimes have the same name
DOC: Improve axes shift description and example in np.tensordot
MAINT: avoid relying on `np.generic.__name__` in `np.dtype.name`
ENH: supply our version of numpy.pxd, requires cython>=0.29
BUG: General fixes to f2py reference counts (dereferencing)
BUG: NaT now sorts to ends of arrays
DOC: Updates to nditer usage instructions
BUG: Do not crash on recursive `.dtype` attribute lookup.
ENH: Use AVX for float32 implementation of np.sin & np.cos
DEP: Deprecate silent ignoring of bad data in fromfile/fromstring
ENH: Always produce a consistent shape in the result of `argwhere`
DOC: array(obj, dtype=dt) can downcast
DOC: Document ma.filled behavior with non-scalar fill_value
DOC: Add note to irfft-like functions about the default sizes
BUG: Don't produce undefined behavior for a << b if b >= bitsof(a)
MAINT: Update NEP template.
ENH: random: Add the multivariate hypergeometric distribution.
DOC: Fix unrendered links
MAINT: Rewrite Floyd algorithm
DOC: Add missing macros to C-API documentation
ENH: Add axis argument to random.permutation and random.shuffle
DOC: Adds documentation of functions exposed in numpy namespace
BUG: Refcount fixes
MAINT: Ensure array_dealloc does not modify refcount of self
MAINT: Prepare master for 1.18.0 development.
MAINT,BUG,DOC: Fix errors in _add_newdocs
MAINT: Remove an unnessary backslash between two string literals
MAINT: Update pavement to use python3 in shell commands.
MAINT: Remove unnecessary backslashes (and replace others by...
MAINT: Replace integers in places where booleans are expected
DOC: Add missing parameter description for keepdims in MaskedArray
ENH: use AVX for float32 and float64 implementation of sqrt,...
DOC: reformat top-level release index
DOC : Refactor Array API documentation -- Array Structure and...
DOC: Fix typo in "make_mask" documentation
MAINT: Delete unused _aliased_types.py
BLD: Remove Trusty dist in Travis CI build
BUG: Handle weird bytestrings in dtype()
ENH: use towncrier to build the release note
ENH: improve error message for ragged-array creation failure
DOC: Update the description of byteswap
BUG: i0 Bessel function regression on array-likes supporting...
ENH, BUILD: refactor all OpenBLAS downloads into a single, testable...
MAINT: Remove unnecessary parenthesis in numpy.ma.core
MAINT: Fix wrong spelling of ufunc
DOC: Remove explicit .next method calls with built-in next function...
DOC: Don't override MaskedArray.view documentation with the one...
BUG: Fix incorrect GIL release in array.nonzero
MAINT: Warn if `_add_newdocs.py` is used to add docstrings to...
MAINT: Revert 13876, "MAINT,BUG,DOC: Fix errors in _add_newdocs"
MAINT,BUG,DOC: Fix errors in _add_newdocs
DOC, MAINT: emphasize random API changes, remove Generator.randint
DOC: Add a numpy-doc docstring to add_newdoc
DOC: Fix rst rendering in data types
DOC:Update the description of set_printoptions in quickstart...
Fixing failure on Python 2.7 on Windows 7
Fix a typo related to the range of indices
DOC: add space between words across lines
BUG, DOC: add new recfunctions to `__all__`
DOC: Change (old) range() to np.arange()
DOC: improve np.sort docstring
DOC: spellcheck numpy/doc/broadcasting.py
MAINT, TST: remove test-installed-numpy.py
DOC: Document array_function at a higher level.
DOC: show workaround for backward compatibility
DOC: Add a call for contribution paragraph to the readme
BUG: Missing warnings import in polyutils
BUILD: adapt "make version-check" to "make dist"
DOC: emphasize need for matching numpy, git versions
TST, MAINT, BUG: expand OpenBLAS version checking
ENH: Chain exception for typed item assignment
MAINT: Fix spelling error in npy_tempita kwarg
DOC: Array API : Directory restructure and code cleanup
[DOC] Remove unused/deprecated functions
Update system_info.py
DOC:Link between the two indexing documentation pages
DOC: Update NumFOCUS subcommittee replacing Nathaniel with Sebastian
DOC: update "Contributing to NumPy" with more activities/roles
DOC: Improve quickstart documentation of new random Generator
DEP: Speed up WarnOnWrite deprecation in buffer interface
NEP: numpy.org website redesign
DOC: Fix docstring of numpy.allclose regarding NaNs
DEP: Raise warnings for deprecated functions PyArray_As1D, PyArray_As2D
DEP: Remove np.rank which has been deprecated for more than 5...
BUG, TEST: Adding validation test suite to validate float32 exp
ENH,DEP: Allow multiple axes in expand_dims
ENH: add pyproject.toml
DOC: Update cversions.py links and wording
DOC, BUILD: cleanups and fix (again) 'make dist'
BUG: Fix file-like object check when saving arrays
DOC: Resolve bad references in Sphinx warnings
MAINT: bump ARMv8 / POWER8 OpenBLAS in CI
DOC: Emphasize the need to run tests when building from source
DOC:Add example to clarify "numpy.save" behavior on already open...
DEP: Deprecate full and economic modes for linalg.qr
DOC: Doc release
BUG: fix build issue on icc 2016
TST: Add 3.8-dev to travisCI testing.
DOC: Add blank line above doctest for intersect1d
ENH: Propose standard policy for dropping support of old Python...
DOC: Use `pip install .` where possible instead of calling setup.py
MAINT: adjustments to test_ufunc_noncontigous
MAINT: Improve NEP template
DOC: fix documentation of i and j for tri.
MAINT: Lazy import testing on python >=3.7
DEP: Deprecate PyArray_FromDimsAndDataAndDescr, PyArray_FromDims
MAINT: Clearer error message while padding with stat_length=0
MAINT: remove duplicate variable assignments
BUG: initialize variable that is passed by pointer
DOC: fix typo in c-api/array.rst doc
BUG: Add gcd/lcm definitions to npy_math.h
MAINT: Mark umath accuracy test xfail.
MAINT: Use equality instead of identity check with literal
MAINT: Fix small typo in quickstart docs
DOC, MAINT: Update master after 1.17.0 release.
ENH: add c-imported modules for freeze analysis in np.random
BUG: Fix DeprecationWarning in python 3.8
BUG: Remove stray print that causes a SystemError on python 3.7...
BUG: Remove the broken clip wrapper
BUG: avx2_scalef_ps must be static
TST: Allow fuss in testing strided/non-strided exp/log loops
NEP: Proposal for __duckarray__ protocol
BUG: Make advanced indexing result on read-only subclass writeable
TST: Clean up of test_pocketfft.py
DEP: Deprecate np.alen
MAINT: Workaround for Intel compiler bug leading to failing test
DOC: Fix hermitian argument docs in `svd`
MAINT: Fix a docstring typo.
DOC: Fix links in `/.github/CONTRIBUTING.md`.
ENH: Multivariate normal speedups
MAINT: Improve mismatch message of np.testing.assert_array_equal
DOC,MAINT: Move towncrier files and fixup categories
BUG: Fixed default BitGenerator name
BUG: Fix uint-overflow if padding with linear_ramp and negative...
ENH: Enable huge pages in all Linux builds
BUG: Fix leak in the f2py-generated module init and `PyMem_Del`...
DOC: new nan_to_num keywords are from 1.17 onwards
TST: Add tests for deprecated C functions (PyArray_As1D, PyArray_As1D)
DOC: mention `take_along_axis` in `choose`
ENH: Parse complex number from string
DOC: update or remove outdated sourceforge links
MAINT: Better error message for norm
DOC: add backlinks to numpy.org
BUG: Don't fail when lexsorting some empty arrays.
BUG: Fix segfault in `random.permutation(x)` when x is a string.
Doc: fix a typo in NEP21
DOC: set status of NEP 28 (website redesign) to Accepted
BLD: MAINT: change default behavior of build flag appending.
BUG: Fixes StopIteration error from 'np.genfromtext' for empty...
BUG: fix inconsistent axes ordering for axis in function `unique`
DEP: Deprecate load/dump functions in favour of pickle methods
MAINT: Update NEP-30
DEP: Deprecate arrayprint formatting functions
DOC: remove scipy.org from the breadcrumb formattiong
BUG: Fix formatting error in exception message
DOC: Address typos in dispatch docs
BUG: Fix ZeroDivisionError for zero length arrays in pocketfft.
BUG: Fix misuse of .names and .fields in various places
TST, BUG: Use python3.6-dbg.
BUG: core: Handle large negative np.int64 args in binary_repr.
BUG: Fix numpy.random bug in platform detection
MAINT: random: Match type of SeedSequence.pool_size to DEFAULT_POOL_SIZE
Bug: Fix behavior of structured_to_unstructured on non-trivial...
DOC: add two commas, move one word
DOC: Clarify rules about broadcasting when empty arrays are involved.
TST, MAINT: bump to OpenBLAS 0.3.7 stable
DEP: numpy.testing.rand
DEP: Deprecate class `SafeEval`
BUG: revert detecting and raising error on ragged arrays
DOC: Improve documentation of `isscalar`.
MAINT: Fix bloated mismatch error percentage in array comparisons.
DOC: Fix a minor typo in dispatch documentation.
MAINT: Remove redundant deprecation checks
MAINT: polynomial: Add an N-d vander implementation used under...
DOC: clarify that PytestTester is non-public
DOC: support and require sphinx>=2.2
DOC: random: fix doc linking, was referencing private submodules.
MAINT: Fixes for prospective Python 3.10 and 4.0
DOC: lib: Add more explanation of the weighted average calculation.
MAINT: Avoid BytesWarning in PyArray_DescrConverter()
MAINT: Post NumPy 1.17.1 update.
DOC: Fixed dtype docs for var, nanvar.
DOC: Document project as Python 3 only with a trove classifier
BUILD: move all test dependencies to ./test_requirements.txt
BUG: lib: Fix histogram problem with signed integer arrays.
REL: Update master after NumPy 1.16.5 release.
BUG: test, fix regression in converting to ctypes
NEP: Add initial draft of NEP-31: Context-local and global overrides..
DOC: document numpy/doc update process
DOC: update np.around docstring with note about floating-point...
BUG: view with fieldless dtype should raise if itemsize != 0
DOC: fix issue with __new__ usage in subclassing doc.
DOC: Fix release notes table of contents
NEP 32: Remove the financial functions from NumPy
BLD: Update RELEASE_WALKTHROUGH and cythonize.
Bump pytest from 5.1.1 to 5.1.2
TST: Remove build job since we now use Dependabot
BLD: Only allow using Cython module when cythonizing.
TST: Add dependabot config file.
BUG: Fix format statement associated with AttributeError.
BUG: Fix aradixsort indirect indexing.
DOC: add the reference to 'printoptions'
BUG: Do not show Override module in private error classes.
DOC: Make implementation bullet points consistent in NEP 29
MAINT: Clarify policy language in NEP-29.
REL: Update master after 1.17.2 release.
MAINT: clean up pocketfft modules inside numpy.fft namespace
BLD: remove generated Cython files from sdist
MAINT: add test to prevent new public-looking modules being added
BUG: random.hypergeometic assumes npy_long is npy_int64, hangs...
ENH: Print the amount of memory that would be used by a failed...
MAINT: use test_requirements.txt in tox and shippable, ship it...
BUG: add a specialized loop for boolean matmul
BUG: Fix _ctypes class circular reference.
BUG: core: Fix the str function of the rational dtype.
DOC: add timedelta64 signature
MAINT: Extract raising of MemoryError to a helper function
BUG,MAINT: Some fixes and minor cleanup based on clang analysis
MAINT: Add `NPY_UNUSED` and `const` qualified suggested by clang
MAINT: Silence integer comparison build warnings in assert statements
MAINT: distutils: Add newline at the end of printed warnings.
BUG: random: Revert gh-14458 and refix gh-14557.
DOC: Fix reference NPY_ARRAY_OWNDATA instead of NPY_OWNDATA.
ENH: Allow NPY_PKG_CONFIG_PATH environment variable override
MAINT: remove the entropy c-extension module
DOC: Add backslashes so PyUFunc_FromFuncAndDataAndSignatureAndIdentity
DOC: Fix a minor typo in changelog readme
BUG: Fix randint when range is 2**32
DOC: tweak np.round docstring to clarify floating-point error
DOC: Add warning to NPV function
API: Do not return None from recfunctions.drop_fields
BUG: Fix flatten_dtype so that nested 0-field structs are flattened...
DOC: Build release notes during CircleCI step
BUILD: Hide platform configuration probe behind --debug-configure
Mention that split() returns views into the original array
MAINT: Simplify lookfor function
MAINT: random: Remove a few duplicated C function prototypes.
BUILD, MAINT: run tests with verbose for PyPY, also do not leak...
BUG: fix release snippet failures caught only after merging
BLD: add warn-error option, adds -Werror to compiler
BUG: random: Create a legacy implementation of random.binomial.
MAINT: remove unused functions, rearrange headers (from CC=clang)
DOC: Fix a bit of code in 'Beyond the Basics' C API user guide.
MAINT: Cleanup old_defines in DOC
DOC: Added missing versionadded to diff(prepend)
BUG: Avoid ctypes in Generators
Changing ImportWarning to DeprecationWarning
MAINT: handle case where GIT_VERSION is empty string
MAINT: core: Remove duplicated inner loop ee->e from log, exp,...
DOC: clarify input types in basics.io.genfromtxt.rst
DOC: remove note about Pocketfft license file (non-existing here).
DOC: Fix code that generates the table in the 'Casting Rules'...
MAINT: don't install partial numpy.random C/Cython API.
TST: ensure coercion tables aren't printed on failing public...
DEP: remove deprecated (and private) numpy.testing submodules.
BLD, DOC: fix gh-14518, add release note
BUG: importing build_src breaks setuptools monkeypatch for msvc14
DOC: Note runtests.py `-- -s` method to use pytests `-s`
DOC: update submodule docstrings, remove info.py files
DOC: Document the NPY_SCALARKIND values as C variables.
MAINT: Bump pytest from 5.1.2 to 5.1.3
DEP: remove deprecated select behaviour
BUG: Add missing check for 0-sized array in ravel_multi_index
BUG: dtype refcount cleanups
DOC: Fix a minor typo in changelog entry
MAINT: Fix typo: remoge → remove
DOC: Change the promotion table checkmark to 'Y'.
DEP: Complete deprecation of invalid array/memory order
DOC: Add to doc that interp cannot contain NaN
NEP: Accept NEP 32.
NEP: Fix discrepancies in NEPs
NEP: Only list "Active" NEPs under "Meta-NEPs"
API: restructure and document numpy.random C-API
BUG: properly define PyArray_DescrCheck{,Exact}
MAINT: Remove duplicate files from .gitignore
API: rearrange the cython files in numpy.random
MAINT: Bump pytest from 5.1.3 to 5.2.0
MAINT: Add "MAINT" tag to dependabot commit msg
DOC: Updated sphinx directive formatting
DEP: Finish deprecation of non-integer `num` in linspace
DOC: s/OR/AND/ in np.logical_and docstring
DOC: misleading np.sinc() documentation
DOC: clarify residual in np.polyfit
BUILD: change to build_src --verbose-cfg, runtests.py --debug-info
BUG: always free clean_sep
DOC: Create `class Extension` docstring and add it to documentation.
DOC: add `printoptions` as a context manager to `set_printoptions`
DOC: Fix typo in NEP 29
MAINT: Use scalar math power function directly
DOC: Add IPython to dependencies needed to build docs.
MAINT: Bump pytest-cov from 2.7.1 to 2.8.1
MAINT: Bump pytest from 5.2.0 to 5.2.1
MAINT: Bump pytz from 2019.2 to 2019.3
MAINT: Use `extract_unit` throughout datetime
BUG: fix fromfile behavior when reading sub-array dtypes
BUG: random: Use correct length when axis is given to shuffle.
BUG: Do not rely on undefined behaviour to cast from float to...
NEP: add default-dtype-object-deprecation nep 34
MAINT: Remove unused boolean negative/subtract loops
DEP: ufunc `out` argument must be a tuple for multiple outputs
BUG: Fix `np.einsum` errors on Power9 Linux and z/Linux
DOC: Note release notes process changes on devdocs start page
Doc warnings
DOC: Switch Markdown link to RST in NEP 29
TST: Divide Azure CI Pipelines into stages.
DEP: Finish the out kwarg deprecation for ufunc calls
DOC: Removing mentions of appveyor
BUG: Default start to 0 for timedelta arange
API: NaT (arg)min/max behavior
API: Forbid Q<->m safe casting
DEP: deprecate financial functions.
DOC: Move newsfragment to correct folder
DOC: cleaning up examples in maskedarray.generic
MAINT: umath: Change error message for unsupported bool subtraction.
ENH: Add complex number support for fromfile
TST: run refguide-check on rst files in doc/*
DOC: Edit NEP procedure for better discussion
DOC: Post 1.17.3 release update.
NEP: Accept NEP 29 as final
BUG: Don't narrow intp to int when producing error messages
DOC: lib: Fix deprecation markup in financial function docstrings.
DOC: Change from HTTP to HTTPS
BUG: clear only attribute errors in get_attr_string.h::maybe_get_attr
MAINT: doc: Remove doc/newdtype_example/
Reword cautionary note about dtype.descr
BUG: fix integer size confusion in handling array's ndmin argument
TST, BUILD: add a gcc 4.8 run on ubuntu 18.04
Update CLASSIFIERS with python 3.8 support
BUG: random: biased samples from integers() with 8 or 16 bit...
DOC: Add release note about changed random variate stream from...
DOC: Make changes to NEP procedure
DOC: random: Remove redundant 'See Also' entry in 'uniform' docstring.
MAINT: Minor typo fix
MAINT: Bump pytest from 5.2.1 to 5.2.2
DOC: Adjust NEP-31 to new template.
DEP: issue deprecation warning when creating ragged array (NEP...
NEP: move 'NEP 29 random' from Accepted to Final
DOC: Add take_along_axis to the see also section in argmin, argmax...
ENH: change object-array comparisons to prefer OO->O unfuncs
TST: Don't construct Fraction instances from numpy scalars
Rename helper functions to not use the word rank
MAINT: Use templating to merge float loops
BUILD: ignore more build.log warnings
BLD: Prevent -flto from optimising long double representation...
BUG: raise ValueError for empty arrays passed to _pyarray_correlate
MAINT: move buffer.h -> npy_buffer.h to avoid conflicts
MAINT: Bump cython from 0.29.13 to 0.29.14
ENH: add isinf, isnan, fmin, fmax loops for datetime64, timedelta64
BLD: add 'apt update' to shippable
MAINT: revert gh-14800, which gave precedence to OO->O over OO->?
REL: Update master after 1.17.4 release.
BUILD: remove SSE2 flag from numpy.random builds
DOC: Update NEP29 with Python3.8 informations.
BUG: Remove builtins from __all__
MAINT: Delete and ignore generated files
Update FUNDING.yml
MAINT: Remove uses of scalar aliases
NEP: move nep 34 to accepted
TST: Add s390x to the TravisCI test matrix.
DOC: Note FFT type promotion
TST: Test with Python3.8 on Windows.
TST: Update travis.yml
TST: add no_tracing decorator to refcount-sensitive codepath...
MAINT: Bump pytest from 5.2.2 to 5.2.4
BUG: Fix step returned by linspace when num=1 and endpoint=False
DOC: Compare 'tolist' function to 'list' in example
DOC: Clarify return type for default_rng
MAINT: move numpy/random/examples -> numpy/random/_examples
DOC: testing: Note handling of scalars in assert_array_equal...
DOC, API: add random.__init__.pxd and document random.* functions
DOC: Clean up examples of low-level random access
TST. API: test using distributions.h via cffi
TST: skip if cython is not available
MAINT: Cleaned up mintypecode for Py3
DOC: fix docstring of np.linalg.norm
MAINT: Added Python3.8 branch to dll lib discovery on Windows
DEV: update asv.conf.json
MAINT: Bump pytest from 5.2.4 to 5.3.0
MAINT: Fix typos
REV: "ENH: Improved performance of PyArray_FromAny for sequences...
BUG: warn when saving dtype with metadata
DEP: Deprecate the axis argument to masked_rows and masked_cols
MAINT: Fix long name of PCG64
DOC, API: improve the C-API/Cython documentation and interfaces...
DOC: Fix typo in numpy.loadtxt and numpy.genfromtxt documentation
ENH: allow using symbol-suffixed 64-bit BLAS/LAPACK for numpy.dot...
DOC: add a more useful comment to compat.py3k.py
DOC: lib: Use a clearer example of ddof in the notes of the cov...
TST: machinery for tests requiring large memory + lapack64 smoketest
MAINT: Only copy input array in _replace_nan() if there are nans...
MAINT: Bump pytest from 5.3.0 to 5.3.1
REV: "ENH: Improved performance of PyArray_FromAny for sequences...
REL: Prepare for 1.18 branch
MAINT: Cleaned up mintypecode for Py3 (pt. 2)
BUG: Fix refcounting in ufunc object loops
BUG: Exceptions tracebacks are dropped
REV: Revert "Merge pull request 14794 from mattip/nep-0034-impl"
API, DOC: change names to multivariate_hypergeometric, improve docs
REL: Prepare for NumPy 1.18.0 release.
TST: Check requires_memory immediately before the test
ENH: Add support to sort timedelta64 `NaT` to end of the array
MAINT: follow-up cleanup for blas64 PR
ENH: f2py: add --f2cmap option for specifying the name of .f2py_f2cmap
ENH: add support for ILP64 OpenBLAS (without symbol suffix)
Changes:
- Add project URLs to setup.py
- fix tests and ctypes code for PyPy
- use npy_intp instead of int for indexing array
- Ignore DeprecationWarning during nose imports
- Fix use-after-free in boolean indexing
- Fix errors in _add_newdocs
- fix byte order reversal for datetime64[ns]
- Use nbytes to also catch empty descr during allocation
- np.array cleared errors occured in PyMemoryView_FromObject
- Fixes for Undefined Behavior Sanitizer (UBSan) errors.
- ensure that casting to/from structured is properly checked.
- fix histogram*d dispatchers
- further fixup to histogram2d dispatcher.
- Replace contextlib.suppress for Python 2.7
- fix compilation of 3rd party modules with Py_LIMITED_API...
- Fix memory leak in dtype from dict contructor
- Document array_function at a higher level.
- add new recfunctions to __all__
- Remove stray print that causes a SystemError on python 3.7
- Pin pytest version to 5.0.1.
- Enable huge pages in all Linux builds
- fix behavior of structured_to_unstructured
1.16.2:
TST: fix vmImage dispatch in Azure
MAINT: remove complicated test of multiarray import failure mode
BUG: fix signed zero behavior in npy_divmod
MAINT: Add functions to parse shell-strings in the platform-native...
BUG: Fix regression in parsing of F90 and F77 environment variables
BUG: parse shell escaping in extra_compile_args and extra_link_args
BLD: Windows absolute path DLL loading
1.16.1:
* BUG: Check paths are unicode, bytes or path-like
* ENH: add mm->q floordiv
* ENH: port np.core.overrides to C for speed
* BUG: Ensure probabilities are not NaN in choice
* MAINT: add warning to numpy.distutils for LDFLAGS append behavior.
* ENH: add "max difference" messages to np.testing.assert_array_equal...
* BUG: Fix incorrect/missing reference cleanups found using valgrind
that wraps subprocess
* DOC, TST: Clean up matplotlib imports
* BUG: Fix reference counting for subarrays containing objects
* BUG: Ensure failing memory allocations are reported
* BUG: Fix leak of void scalar buffer info
* MAINT: Change the order of checking for local file.
* BUG: loosen kwargs requirements in ediff1d
* DOC: clarify the extend of __array_function__ support in NumPy...
* BUG: Check that dtype or formats arguments are not None.
* BUG: fix f2py problem to build wrappers using PGI's Fortran
* BUG: double decref of dtype in failure codepath. Test and fix
* BUG, DOC: test, fix that f2py.compile accepts str and bytes,...
* BUG: resolve writeback in arr_insert failure paths
* ENH: Add mm->qm divmod
* BUG: Fix SystemError when pickling datetime64 array with pickle5
* BUG: Fix rounding of denormals in double and float to half casts.
* TEST: pin mingw version
* BUG: ndarrays pickled by 1.16 cannot be loaded by 1.15.4 and...
* BUG: do not Py_DECREF NULL pointer
* ENH: add _dtype_ctype to namespace for freeze analysis
* BUG: fail if old multiarray module detected
* BUG: Do not double-quote arguments passed on to the linker
* BUG: Do not insert extra double quote into preprocessor macros
NumPy 1.16.0 Release Notes
This NumPy release is the last one to support Python 2.7 and will be maintained
as a long term release with bug fixes until 2020. Support for Python 3.4 been
dropped, the supported Python versions are 2.7 and 3.5-3.7. The wheels on PyPI
are linked with OpenBLAS v0.3.4+, which should fix the known threading issues
found in previous OpenBLAS versions.
Downstream developers building this release should use Cython >= 0.29 and, if
using OpenBLAS, OpenBLAS > v0.3.4.
This release has seen a lot of refactoring and features many bug fixes, improved
code organization, and better cross platform compatibility. Not all of these
improvements will be visible to users, but they should help make maintenance
easier going forward.
NumPy 1.15.1:
This is a bugfix release for bugs and regressions reported following the 1.15.0
release.
* The annoying but harmless RuntimeWarning that "numpy.dtype size changed" has
been suppressed. The long standing suppression was lost in the transition to
pytest.
* The update to Cython 0.28.3 exposed a problematic use of a gcc attribute used
to prefer code size over speed in module initialization, possibly resulting in
incorrect compiled code. This has been fixed in latest Cython but has been
disabled here for safety.
* Support for big-endian and ARMv8 architectures has been improved.
The Python versions supported by this release are 2.7, 3.4-3.7. The wheels are
linked with OpenBLAS v0.3.0, which should fix some of the linalg problems
reported for NumPy 1.14.
NumPy 1.15.0 is a release with an unusual number of cleanups, many deprecations
of old functions, and improvements to many existing functions. Please read the
detailed descriptions below to see if you are affected.
For testing, we have switched to pytest as a replacement for the no longer
maintained nose framework. The old nose based interface remains for downstream
projects who may still be using it.
The Python versions supported by this release are 2.7, 3.4-3.7. The wheels are
linked with OpenBLAS v0.3.0, which should fix some of the linalg problems
reported for NumPy 1.14.
Highlights:
- NumPy has switched to pytest for testing.
- A new numpy.printoptions context manager.
- Many improvements to the histogram functions.
- Support for unicode field names in python 2.7.
- Improved support for PyPy.
- Fixes and improvements to numpy.einsum.
NumPy 1.14.0 Release Notes
Numpy 1.14.0 is the result of seven months of work and contains a large number
of bug fixes and new features, along with several changes with potential
compatibility issues. The major change that users will notice are the
stylistic changes in the way numpy arrays and scalars are printed, a change
that will affect doctests. See below for details on how to preserve the
old style printing when needed.
A major decision affecting future development concerns the schedule for
dropping Python 2.7 support in the runup to 2020. The decision has been made to
support 2.7 for all releases made in 2018, with the last release being
designated a long term release with support for bug fixes extending through
2019. In 2019 support for 2.7 will be dropped in all new releases. More details
can be found in the relevant NEP_.
This release supports Python 2.7 and 3.4 - 3.6.
Highlights
* Operations like a + b + c will reuse temporaries on some platforms,
resulting in less memory use and faster execution.
* Inplace operations check if inputs overlap outputs and create temporaries
to avoid problems.
* New __array_ufunc__ attribute provides improved ability for classes to
override default ufunc behavior.
* New np.block function for creating blocked arrays.
New functions
* New np.positive ufunc.
* New np.divmod ufunc provides more efficient divmod.
* New np.isnat ufunc tests for NaT special values.
* New np.heaviside ufunc computes the Heaviside function.
* New np.isin function, improves on in1d.
* New np.block function for creating blocked arrays.
* New PyArray_MapIterArrayCopyIfOverlap added to NumPy C-API.
NumPy 1.12.1 supports Python 2.7 and 3.4 - 3.6 and fixes bugs and regressions
found in NumPy 1.12.0. In particular, the regression in f2py constant parsing
is fixed.
FAILED (KNOWNFAIL=8, SKIP=9, errors=1, failures=1)
==========================
NumPy 1.12.0 Release Notes
==========================
This release supports Python 2.7 and 3.4 - 3.6.
Highlights
==========
The NumPy 1.12.0 release contains a large number of fixes and improvements, but
few that stand out above all others. That makes picking out the highlights
somewhat arbitrary but the following may be of particular interest or indicate
areas likely to have future consequences.
* Order of operations in ``np.einsum`` can now be optimized for large speed improvements.
* New ``signature`` argument to ``np.vectorize`` for vectorizing with core dimensions.
* The ``keepdims`` argument was added to many functions.
* New context manager for testing warnings
* Support for BLIS in numpy.distutils
* Much improved support for PyPy (not yet finished)
Dropped Support
===============
* Support for Python 2.6, 3.2, and 3.3 has been dropped.
Added Support
=============
* Support for PyPy 2.7 v5.6.0 has been added. While not complete (nditer
``updateifcopy`` is not supported yet), this is a milestone for PyPy's
C-API compatibility layer.
Build System Changes
====================
* Library order is preserved, instead of being reordered to match that of
the directories.
Deprecations
============
Assignment of ndarray object's ``data`` attribute
-------------------------------------------------
Assigning the 'data' attribute is an inherently unsafe operation as pointed
out in gh-7083. Such a capability will be removed in the future.
Unsafe int casting of the num attribute in ``linspace``
-------------------------------------------------------
``np.linspace`` now raises DeprecationWarning when num cannot be safely
interpreted as an integer.
Insufficient bit width parameter to ``binary_repr``
---------------------------------------------------
If a 'width' parameter is passed into ``binary_repr`` that is insufficient to
represent the number in base 2 (positive) or 2's complement (negative) form,
the function used to silently ignore the parameter and return a representation
using the minimal number of bits needed for the form in question. Such behavior
is now considered unsafe from a user perspective and will raise an error in the
future.
Future Changes
==============
* In 1.13 NAT will always compare False except for ``NAT != NAT``,
which will be True. In short, NAT will behave like NaN
* In 1.13 np.average will preserve subclasses, to match the behavior of most
other numpy functions such as np.mean. In particular, this means calls which
returned a scalar may return a 0-d subclass object instead.
Multiple-field manipulation of structured arrays
------------------------------------------------
In 1.13 the behavior of structured arrays involving multiple fields will change
in two ways:
First, indexing a structured array with multiple fields (eg,
``arr[['f1', 'f3']]``) will return a view into the original array in 1.13,
instead of a copy. Note the returned view will have extra padding bytes
corresponding to intervening fields in the original array, unlike the copy in
1.12, which will affect code such as ``arr[['f1', 'f3']].view(newdtype)``.
Second, for numpy versions 1.6 to 1.12 assignment between structured arrays
occurs "by field name": Fields in the destination array are set to the
identically-named field in the source array or to 0 if the source does not have
a field::
>>> a = np.array([(1,2),(3,4)], dtype=[('x', 'i4'), ('y', 'i4')])
>>> b = np.ones(2, dtype=[('z', 'i4'), ('y', 'i4'), ('x', 'i4')])
>>> b[:] = a
>>> b
array([(0, 2, 1), (0, 4, 3)],
dtype=[('z', '<i4'), ('y', '<i4'), ('x', '<i4')])
In 1.13 assignment will instead occur "by position": The Nth field of the
destination will be set to the Nth field of the source regardless of field
name. The old behavior can be obtained by using indexing to reorder the fields
before
assignment, e.g., ``b[['x', 'y']] = a[['y', 'x']]``.
Compatibility notes
===================
DeprecationWarning to error
---------------------------
* Indexing with floats raises ``IndexError``,
e.g., a[0, 0.0].
* Indexing with non-integer array_like raises ``IndexError``,
e.g., ``a['1', '2']``
* Indexing with multiple ellipsis raises ``IndexError``,
e.g., ``a[..., ...]``.
* Non-integers used as index values raise ``TypeError``,
e.g., in ``reshape``, ``take``, and specifying reduce axis.
FutureWarning to changed behavior
---------------------------------
* ``np.full`` now returns an array of the fill-value's dtype if no dtype is
given, instead of defaulting to float.
* np.average will emit a warning if the argument is a subclass of ndarray,
as the subclass will be preserved starting in 1.13. (see Future Changes)
``power`` and ``**`` raise errors for integer to negative integer powers
------------------------------------------------------------------------
The previous behavior depended on whether numpy scalar integers or numpy
integer arrays were involved.
For arrays
* Zero to negative integer powers returned least integral value.
* Both 1, -1 to negative integer powers returned correct values.
* The remaining integers returned zero when raised to negative integer powers.
For scalars
* Zero to negative integer powers returned least integral value.
* Both 1, -1 to negative integer powers returned correct values.
* The remaining integers sometimes returned zero, sometimes the
correct float depending on the integer type combination.
All of these cases now raise a ``ValueError`` except for those integer
combinations whose common type is float, for instance uint64 and int8. It was
felt that a simple rule was the best way to go rather than have special
exceptions for the integer units. If you need negative powers, use an inexact
type.
Relaxed stride checking is the default
--------------------------------------
This will have some impact on code that assumed that ``F_CONTIGUOUS`` and
``C_CONTIGUOUS`` were mutually exclusive and could be set to determine the
default order for arrays that are now both.
The ``np.percentile`` 'midpoint' interpolation method fixed for exact indices
-----------------------------------------------------------------------------
The 'midpoint' interpolator now gives the same result as 'lower' and 'higher' when
the two coincide. Previous behavior of 'lower' + 0.5 is fixed.
``keepdims`` kwarg is passed through to user-class methods
----------------------------------------------------------
numpy functions that take a ``keepdims`` kwarg now pass the value
through to the corresponding methods on ndarray sub-classes. Previously the
``keepdims`` keyword would be silently dropped. These functions now have
the following behavior:
1. If user does not provide ``keepdims``, no keyword is passed to the underlying
method.
2. Any user-provided value of ``keepdims`` is passed through as a keyword
argument to the method.
This will raise in the case where the method does not support a
``keepdims`` kwarg and the user explicitly passes in ``keepdims``.
The following functions are changed: ``sum``, ``product``,
``sometrue``, ``alltrue``, ``any``, ``all``, ``amax``, ``amin``,
``prod``, ``mean``, ``std``, ``var``, ``nanmin``, ``nanmax``,
``nansum``, ``nanprod``, ``nanmean``, ``nanmedian``, ``nanvar``,
``nanstd``
``bitwise_and`` identity changed
--------------------------------
The previous identity was 1, it is now -1. See entry in `Improvements`_ for
more explanation.
ma.median warns and returns nan when unmasked invalid values are encountered
----------------------------------------------------------------------------
Similar to unmasked median the masked median `ma.median` now emits a Runtime
warning and returns `NaN` in slices where an unmasked `NaN` is present.
Greater consistancy in ``assert_almost_equal``
----------------------------------------------
The precision check for scalars has been changed to match that for arrays. It
is now::
abs(actual - desired) < 1.5 * 10**(-decimal)
Note that this is looser than previously documented, but agrees with the
previous implementation used in ``assert_array_almost_equal``. Due to the
change in implementation some very delicate tests may fail that did not
fail before.
``NoseTester`` behaviour of warnings during testing
---------------------------------------------------
When ``raise_warnings="develop"`` is given, all uncaught warnings will now
be considered a test failure. Previously only selected ones were raised.
Warnings which are not caught or raised (mostly when in release mode)
will be shown once during the test cycle similar to the default python
settings.
``assert_warns`` and ``deprecated`` decorator more specific
-----------------------------------------------------------
The ``assert_warns`` function and context manager are now more specific
to the given warning category. This increased specificity leads to them
being handled according to the outer warning settings. This means that
no warning may be raised in cases where a wrong category warning is given
and ignored outside the context. Alternatively the increased specificity
may mean that warnings that were incorrectly ignored will now be shown
or raised. See also the new ``suppress_warnings`` context manager.
The same is true for the ``deprecated`` decorator.
C API
-----
No changes.
New Features
============
Writeable keyword argument for ``as_strided``
---------------------------------------------
``np.lib.stride_tricks.as_strided`` now has a ``writeable``
keyword argument. It can be set to False when no write operation
to the returned array is expected to avoid accidental
unpredictable writes.
``axes`` keyword argument for ``rot90``
---------------------------------------
The ``axes`` keyword argument in ``rot90`` determines the plane in which the
array is rotated. It defaults to ``axes=(0,1)`` as in the originial function.
Generalized ``flip``
--------------------
``flipud`` and ``fliplr`` reverse the elements of an array along axis=0 and
axis=1 respectively. The newly added ``flip`` function reverses the elements of
an array along any given axis.
* ``np.count_nonzero`` now has an ``axis`` parameter, allowing
non-zero counts to be generated on more than just a flattened
array object.
BLIS support in ``numpy.distutils``
-----------------------------------
Building against the BLAS implementation provided by the BLIS library is now
supported. See the ``[blis]`` section in ``site.cfg.example`` (in the root of
the numpy repo or source distribution).
Hook in ``numpy/__init__.py`` to run distribution-specific checks
-----------------------------------------------------------------
Binary distributions of numpy may need to run specific hardware checks or load
specific libraries during numpy initialization. For example, if we are
distributing numpy with a BLAS library that requires SSE2 instructions, we
would like to check the machine on which numpy is running does have SSE2 in
order to give an informative error.
Add a hook in ``numpy/__init__.py`` to import a ``numpy/_distributor_init.py``
file that will remain empty (bar a docstring) in the standard numpy source,
but that can be overwritten by people making binary distributions of numpy.
New nanfunctions ``nancumsum`` and ``nancumprod`` added
-------------------------------------------------------
Nan-functions ``nancumsum`` and ``nancumprod`` have been added to
compute ``cumsum`` and ``cumprod`` by ignoring nans.
``np.interp`` can now interpolate complex values
------------------------------------------------
``np.lib.interp(x, xp, fp)`` now allows the interpolated array ``fp``
to be complex and will interpolate at ``complex128`` precision.
New polynomial evaluation function ``polyvalfromroots`` added
-------------------------------------------------------------
The new function ``polyvalfromroots`` evaluates a polynomial at given points
from the roots of the polynomial. This is useful for higher order polynomials,
where expansion into polynomial coefficients is inaccurate at machine
precision.
New array creation function ``geomspace`` added
-----------------------------------------------
The new function ``geomspace`` generates a geometric sequence. It is similar
to ``logspace``, but with start and stop specified directly:
``geomspace(start, stop)`` behaves the same as
``logspace(log10(start), log10(stop))``.
New context manager for testing warnings
----------------------------------------
A new context manager ``suppress_warnings`` has been added to the testing
utils. This context manager is designed to help reliably test warnings.
Specifically to reliably filter/ignore warnings. Ignoring warnings
by using an "ignore" filter in Python versions before 3.4.x can quickly
result in these (or similar) warnings not being tested reliably.
The context manager allows to filter (as well as record) warnings similar
to the ``catch_warnings`` context, but allows for easier specificity.
Also printing warnings that have not been filtered or nesting the
context manager will work as expected. Additionally, it is possible
to use the context manager as a decorator which can be useful when
multiple tests give need to hide the same warning.
New masked array functions ``ma.convolve`` and ``ma.correlate`` added
---------------------------------------------------------------------
These functions wrapped the non-masked versions, but propagate through masked
values. There are two different propagation modes. The default causes masked
values to contaminate the result with masks, but the other mode only outputs
masks if there is no alternative.
New ``float_power`` ufunc
-------------------------
The new ``float_power`` ufunc is like the ``power`` function except all
computation is done in a minimum precision of float64. There was a long
discussion on the numpy mailing list of how to treat integers to negative
integer powers and a popular proposal was that the ``__pow__`` operator should
always return results of at least float64 precision. The ``float_power``
function implements that option. Note that it does not support object arrays.
``np.loadtxt`` now supports a single integer as ``usecol`` argument
-------------------------------------------------------------------
Instead of using ``usecol=(n,)`` to read the nth column of a file
it is now allowed to use ``usecol=n``. Also the error message is
more user friendly when a non-integer is passed as a column index.
Improved automated bin estimators for ``histogram``
---------------------------------------------------
Added 'doane' and 'sqrt' estimators to ``histogram`` via the ``bins``
argument. Added support for range-restricted histograms with automated
bin estimation.
``np.roll`` can now roll multiple axes at the same time
-------------------------------------------------------
The ``shift`` and ``axis`` arguments to ``roll`` are now broadcast against each
other, and each specified axis is shifted accordingly.
The ``__complex__`` method has been implemented for the ndarrays
----------------------------------------------------------------
Calling ``complex()`` on a size 1 array will now cast to a python
complex.
``pathlib.Path`` objects now supported
--------------------------------------
The standard ``np.load``, ``np.save``, ``np.loadtxt``, ``np.savez``, and similar
functions can now take ``pathlib.Path`` objects as an argument instead of a
filename or open file object.
New ``bits`` attribute for ``np.finfo``
---------------------------------------
This makes ``np.finfo`` consistent with ``np.iinfo`` which already has that
attribute.
New ``signature`` argument to ``np.vectorize``
----------------------------------------------
This argument allows for vectorizing user defined functions with core
dimensions, in the style of NumPy's
:ref:`generalized universal functions<c-api.generalized-ufuncs>`. This allows
for vectorizing a much broader class of functions. For example, an arbitrary
distance metric that combines two vectors to produce a scalar could be
vectorized with ``signature='(n),(n)->()'``. See ``np.vectorize`` for full
details.
Emit py3kwarnings for division of integer arrays
------------------------------------------------
To help people migrate their code bases from Python 2 to Python 3, the
python interpreter has a handy option -3, which issues warnings at runtime.
One of its warnings is for integer division::
$ python -3 -c "2/3"
-c:1: DeprecationWarning: classic int division
In Python 3, the new integer division semantics also apply to numpy arrays.
With this version, numpy will emit a similar warning::
$ python -3 -c "import numpy as np; np.array(2)/np.array(3)"
-c:1: DeprecationWarning: numpy: classic int division
numpy.sctypes now includes bytes on Python3 too
-----------------------------------------------
Previously, it included str (bytes) and unicode on Python2, but only str
(unicode) on Python3.
Improvements
============
``bitwise_and`` identity changed
--------------------------------
The previous identity was 1 with the result that all bits except the LSB were
masked out when the reduce method was used. The new identity is -1, which
should work properly on twos complement machines as all bits will be set to
one.
Generalized Ufuncs will now unlock the GIL
------------------------------------------
Generalized Ufuncs, including most of the linalg module, will now unlock
the Python global interpreter lock.
Caches in `np.fft` are now bounded in total size and item count
---------------------------------------------------------------
The caches in `np.fft` that speed up successive FFTs of the same length can no
longer grow without bounds. They have been replaced with LRU (least recently
used) caches that automatically evict no longer needed items if either the
memory size or item count limit has been reached.
Improved handling of zero-width string/unicode dtypes
-----------------------------------------------------
Fixed several interfaces that explicitly disallowed arrays with zero-width
string dtypes (i.e. ``dtype('S0')`` or ``dtype('U0')``, and fixed several
bugs where such dtypes were not handled properly. In particular, changed
``ndarray.__new__`` to not implicitly convert ``dtype('S0')`` to
``dtype('S1')`` (and likewise for unicode) when creating new arrays.
Integer ufuncs vectorized with AVX2
-----------------------------------
If the cpu supports it at runtime the basic integer ufuncs now use AVX2
instructions. This feature is currently only available when compiled with GCC.
Order of operations optimization in ``np.einsum``
--------------------------------------------------
``np.einsum`` now supports the ``optimize`` argument which will optimize the
order of contraction. For example, ``np.einsum`` would complete the chain dot
example ``np.einsum(‘ij,jk,kl->il’, a, b, c)`` in a single pass which would
scale like ``N^4``; however, when ``optimize=True`` ``np.einsum`` will create
an intermediate array to reduce this scaling to ``N^3`` or effectively
``np.dot(a, b).dot(c)``. Usage of intermediate tensors to reduce scaling has
been applied to the general einsum summation notation. See ``np.einsum_path``
for more details.
quicksort has been changed to an introsort
------------------------------------------
The quicksort kind of ``np.sort`` and ``np.argsort`` is now an introsort which
is regular quicksort but changing to a heapsort when not enough progress is
made. This retains the good quicksort performance while changing the worst case
runtime from ``O(N^2)`` to ``O(N*log(N))``.
``ediff1d`` improved performance and subclass handling
------------------------------------------------------
The ediff1d function uses an array instead on a flat iterator for the
subtraction. When to_begin or to_end is not None, the subtraction is performed
in place to eliminate a copy operation. A side effect is that certain
subclasses are handled better, namely astropy.Quantity, since the complete
array is created, wrapped, and then begin and end values are set, instead of
using concatenate.
Improved precision of ``ndarray.mean`` for float16 arrays
---------------------------------------------------------
The computation of the mean of float16 arrays is now carried out in float32 for
improved precision. This should be useful in packages such as Theano
where the precision of float16 is adequate and its smaller footprint is
desireable.
Changes
=======
All array-like methods are now called with keyword arguments in fromnumeric.py
------------------------------------------------------------------------------
Internally, many array-like methods in fromnumeric.py were being called with
positional arguments instead of keyword arguments as their external signatures
were doing. This caused a complication in the downstream 'pandas' library
that encountered an issue with 'numpy' compatibility. Now, all array-like
methods in this module are called with keyword arguments instead.
Operations on np.memmap objects return numpy arrays in most cases
-----------------------------------------------------------------
Previously operations on a memmap object would misleadingly return a memmap
instance even if the result was actually not memmapped. For example,
``arr + 1`` or ``arr + arr`` would return memmap instances, although no memory
from the output array is memmaped. Version 1.12 returns ordinary numpy arrays
from these operations.
Also, reduction of a memmap (e.g. ``.sum(axis=None``) now returns a numpy
scalar instead of a 0d memmap.
stacklevel of warnings increased
--------------------------------
The stacklevel for python based warnings was increased so that most warnings
will report the offending line of the user code instead of the line the
warning itself is given. Passing of stacklevel is now tested to ensure that
new warnings will receive the ``stacklevel`` argument.
This causes warnings with the "default" or "module" filter to be shown once
for every offending user code line or user module instead of only once. On
python versions before 3.4, this can cause warnings to appear that were falsely
ignored before, which may be surprising especially in test suits.
NumPy 1.11.2 Release Notes
**************************
Numpy 1.11.2 supports Python 2.6 - 2.7 and 3.2 - 3.5. It fixes bugs and
regressions found in Numpy 1.11.1 and includes several build related
improvements. Wheels for Linux, Windows, and OS X can be found on PyPI.
Pull Requests Merged
====================
Fixes overridden by later merges and release notes updates are omitted.
- #7736 BUG: Many functions silently drop 'keepdims' kwarg.
- #7738 ENH: Add extra kwargs and update doc of many MA methods.
- #7778 DOC: Update Numpy 1.11.1 release notes.
- #7793 BUG: MaskedArray.count treats negative axes incorrectly.
- #7816 BUG: Fix array too big error for wide dtypes.
- #7821 BUG: Make sure npy_mul_with_overflow_<type> detects overflow.
- #7824 MAINT: Allocate fewer bytes for empty arrays.
- #7847 MAINT,DOC: Fix some imp module uses and update f2py.compile docstring.
- #7849 MAINT: Fix remaining uses of deprecated Python imp module.
- #7851 BLD: Fix ATLAS version detection.
- #7896 BUG: Construct ma.array from np.array which contains padding.
- #7904 BUG: Fix float16 type not being called due to wrong ordering.
- #7917 BUG: Production install of numpy should not require nose.
- #7919 BLD: Fixed MKL detection for recent versions of this library.
- #7920 BUG: Fix for issue #7835 (ma.median of 1d).
- #7932 BUG: Monkey-patch _msvccompile.gen_lib_option like other compilers.
- #7939 BUG: Check for HAVE_LDOUBLE_DOUBLE_DOUBLE_LE in npy_math_complex.
- #7953 BUG: Guard against buggy comparisons in generic quicksort.
- #7954 BUG: Use keyword arguments to initialize Extension base class.
- #7955 BUG: Make sure numpy globals keep identity after reload.
- #7972 BUG: MSVCCompiler grows 'lib' & 'include' env strings exponentially.
- #8005 BLD: Remove __NUMPY_SETUP__ from builtins at end of setup.py.
- #8010 MAINT: Remove leftover imp module imports.
- #8020 BUG: Fix return of np.ma.count if keepdims is True and axis is None.
- #8024 BUG: Fix numpy.ma.median.
- #8031 BUG: Fix np.ma.median with only one non-masked value.
- #8044 BUG: Fix bug in NpyIter buffering with discontinuous arrays.
pkgsrc changes:
- swich to the GITHUB framework
- add functional test target
- update local patches
upstream changes:
NumPy 1.11.1 Release Notes
Numpy 1.11.1 supports Python 2.6 - 2.7 and 3.2 - 3.5. It fixes bugs and regressions found in Numpy 1.11.0 and includes several build related improvements. Wheels for Linux, Windows, and OSX can be found on pypi.
Fixes Merged
#7506 BUG: Make sure numpy imports on python 2.6 when nose is unavailable.
#7530 BUG: Floating exception with invalid axis in np.lexsort.
#7535 BUG: Extend glibc complex trig functions blacklist to glibc < 2.18.
#7551 BUG: Allow graceful recovery for no compiler.
#7558 BUG: Constant padding expected wrong type in constant_values.
#7578 BUG: Fix OverflowError in Python 3.x. in swig interface.
#7590 BLD: Fix configparser.InterpolationSyntaxError.
#7597 BUG: Make np.ma.take work on scalars.
#7608 BUG: linalg.norm(): Don't convert object arrays to float.
#7638 BLD: Correct C compiler customization in system_info.py.
#7654 BUG: ma.median of 1d array should return a scalar.
#7656 BLD: Remove hardcoded Intel compiler flag -xSSE4.2.
#7660 BUG: Temporary fix for str(mvoid) for object field types.
#7665 BUG: Fix incorrect printing of 1D masked arrays.
#7670 BUG: Correct initial index estimate in histogram.
#7671 BUG: Boolean assignment no GIL release when transfer needs API.
#7676 BUG: Fix handling of right edge of final histogram bin.
#7680 BUG: Fix np.clip bug NaN handling for Visual Studio 2015.
#7724 BUG: Fix segfaults in np.random.shuffle.
#7731 MAINT: Change mkl_info.dir_env_var from MKL to MKLROOT.
#7737 BUG: Fix issue on OS X with Python 3.x, npymath.ini not installed.
NumPy 1.11.0 Release Notes
This release supports Python 2.6 - 2.7 and 3.2 - 3.5 and contains a number of enhancements and improvements. Note also the build system changes listed below as they may have subtle effects.
No Windows (TM) binaries are provided for this release due to a broken toolchain. One of the providers of Python packages for Windows (TM) is your best bet.
Highlights
Details of these improvements can be found below.
The datetime64 type is now timezone naive.
A dtype parameter has been added to randint.
Improved detection of two arrays possibly sharing memory.
Automatic bin size estimation for np.histogram.
Speed optimization of A @ A.T and dot(A, A.T).
New function np.moveaxis for reordering array axes.
Build System Changes
Numpy now uses setuptools for its builds instead of plain distutils. This fixes usage of install_requires='numpy' in the setup.py files of projects that depend on Numpy (see gh-6551). It potentially affects the way that build/install methods for Numpy itself behave though. Please report any unexpected behavior on the Numpy issue tracker.
Bento build support and related files have been removed.
Single file build support and related files have been removed.
Future Changes
The following changes are scheduled for Numpy 1.12.0.
Support for Python 2.6, 3.2, and 3.3 will be dropped.
Relaxed stride checking will become the default. See the 1.8.0 release notes for a more extended discussion of what this change implies.
The behavior of the datetime64 "not a time" (NaT) value will be changed to match that of floating point "not a number" (NaN) values: all comparisons involving NaT will return False, except for NaT != NaT which will return True.
Indexing with floats will raise IndexError, e.g., a[0, 0.0].
Indexing with non-integer array_like will raise IndexError, e.g., a['1', '2']
Indexing with multiple ellipsis will raise IndexError, e.g., a[..., ...].
Non-integers used as index values will raise TypeError, e.g., in reshape, take, and specifying reduce axis.
In a future release the following changes will be made.
The rand function exposed in numpy.testing will be removed. That function is left over from early Numpy and was implemented using the Python random module. The random number generators from numpy.random should be used instead.
The ndarray.view method will only allow c_contiguous arrays to be viewed using a dtype of different size causing the last dimension to change. That differs from the current behavior where arrays that are f_contiguous but not c_contiguous can be viewed as a dtype type of different size causing the first dimension to change.
Slicing a MaskedArray will return views of both data and mask. Currently the mask is copy-on-write and changes to the mask in the slice do not propagate to the original mask. See the FutureWarnings section below for details.
Compatibility notes
datetime64 changes
In prior versions of NumPy the experimental datetime64 type always stored times in UTC. By default, creating a datetime64 object from a string or printing it would convert from or to local time:
# old behavior
>>>> np.datetime64('2000-01-01T00:00:00')
numpy.datetime64('2000-01-01T00:00:00-0800') # note the timezone offset -08:00
A consensus of datetime64 users agreed that this behavior is undesirable and at odds with how datetime64 is usually used (e.g., by pandas). For most use cases, a timezone naive datetime type is preferred, similar to the datetime.datetime type in the Python standard library. Accordingly, datetime64 no longer assumes that input is in local time, nor does it print local times:
>>>> np.datetime64('2000-01-01T00:00:00')
numpy.datetime64('2000-01-01T00:00:00')
For backwards compatibility, datetime64 still parses timezone offsets, which it handles by converting to UTC. However, the resulting datetime is timezone naive:
>>> np.datetime64('2000-01-01T00:00:00-08')
DeprecationWarning: parsing timezone aware datetimes is deprecated;
this will raise an error in the future
numpy.datetime64('2000-01-01T08:00:00')
As a corollary to this change, we no longer prohibit casting between datetimes with date units and datetimes with time units. With timezone naive datetimes, the rule for casting from dates to times is no longer ambiguous.
linalg.norm return type changes
The return type of the linalg.norm function is now floating point without exception. Some of the norm types previously returned integers.
polynomial fit changes
The various fit functions in the numpy polynomial package no longer accept non-integers for degree specification.
np.dot now raises TypeError instead of ValueError
This behaviour mimics that of other functions such as np.inner. If the two arguments cannot be cast to a common type, it could have raised a TypeError or ValueError depending on their order. Now, np.dot will now always raise a TypeError.
FutureWarning to changed behavior
In np.lib.split an empty array in the result always had dimension (0,) no matter the dimensions of the array being split. This has been changed so that the dimensions will be preserved. A FutureWarning for this change has been in place since Numpy 1.9 but, due to a bug, sometimes no warning was raised and the dimensions were already preserved.
% and // operators
These operators are implemented with the remainder and floor_divide functions respectively. Those functions are now based around fmod and are computed together so as to be compatible with each other and with the Python versions for float types. The results should be marginally more accurate or outright bug fixes compared to the previous results, but they may differ significantly in cases where roundoff makes a difference in the integer returned by floor_divide. Some corner cases also change, for instance, NaN is always returned for both functions when the divisor is zero, divmod(1.0, inf) returns (0.0, 1.0) except on MSVC 2008, and divmod(-1.0, inf) returns (-1.0, inf).
C API
Removed the check_return and inner_loop_selector members of the PyUFuncObject struct (replacing them with reserved slots to preserve struct layout). These were never used for anything, so it's unlikely that any third-party code is using them either, but we mention it here for completeness.
object dtype detection for old-style classes
In python 2, objects which are instances of old-style user-defined classes no longer automatically count as 'object' type in the dtype-detection handler. Instead, as in python 3, they may potentially count as sequences, but only if they define both a __len__ and a __getitem__ method. This fixes a segfault and inconsistency between python 2 and 3.
New Features
np.histogram now provides plugin estimators for automatically estimating the optimal number of bins. Passing one of ['auto', 'fd', 'scott', 'rice', 'sturges'] as the argument to 'bins' results in the corresponding estimator being used.
A benchmark suite using Airspeed Velocity has been added, converting the previous vbench-based one. You can run the suite locally via python runtests.py --bench. For more details, see benchmarks/README.rst.
A new function np.shares_memory that can check exactly whether two arrays have memory overlap is added. np.may_share_memory also now has an option to spend more effort to reduce false positives.
SkipTest and KnownFailureException exception classes are exposed in the numpy.testing namespace. Raise them in a test function to mark the test to be skipped or mark it as a known failure, respectively.
f2py.compile has a new extension keyword parameter that allows the fortran extension to be specified for generated temp files. For instance, the files can be specifies to be *.f90. The verbose argument is also activated, it was previously ignored.
A dtype parameter has been added to np.random.randint Random ndarrays of the following types can now be generated:
np.bool,
np.int8, np.uint8,
np.int16, np.uint16,
np.int32, np.uint32,
np.int64, np.uint64,
np.int_ ``, ``np.intp
The specification is by precision rather than by C type. Hence, on some platforms np.int64 may be a long instead of long long even if the specified dtype is long long because the two may have the same precision. The resulting type depends on which C type numpy uses for the given precision. The byteorder specification is also ignored, the generated arrays are always in native byte order.
A new np.moveaxis function allows for moving one or more array axes to a new position by explicitly providing source and destination axes. This function should be easier to use than the current rollaxis function as well as providing more functionality.
The deg parameter of the various numpy.polynomial fits has been extended to accept a list of the degrees of the terms to be included in the fit, the coefficients of all other terms being constrained to zero. The change is backward compatible, passing a scalar deg will behave as before.
A divmod function for float types modeled after the Python version has been added to the npy_math library.
Improvements
np.gradient now supports an axis argument
The axis parameter was added to np.gradient for consistency. It allows to specify over which axes the gradient is calculated.
np.lexsort now supports arrays with object data-type
The function now internally calls the generic npy_amergesort when the type does not implement a merge-sort kind of argsort method.
np.ma.core.MaskedArray now supports an order argument
When constructing a new MaskedArray instance, it can be configured with an order argument analogous to the one when calling np.ndarray. The addition of this argument allows for the proper processing of an order argument in several MaskedArray-related utility functions such as np.ma.core.array and np.ma.core.asarray.
Memory and speed improvements for masked arrays
Creating a masked array with mask=True (resp. mask=False) now uses np.ones (resp. np.zeros) to create the mask, which is faster and avoid a big memory peak. Another optimization was done to avoid a memory peak and useless computations when printing a masked array.
ndarray.tofile now uses fallocate on linux
The function now uses the fallocate system call to reserve sufficient disk space on file systems that support it.
Optimizations for operations of the form A.T @ A and A @ A.T
Previously, gemm BLAS operations were used for all matrix products. Now, if the matrix product is between a matrix and its transpose, it will use syrk BLAS operations for a performance boost. This optimization has been extended to @, numpy.dot, numpy.inner, and numpy.matmul.
Note: Requires the transposed and non-transposed matrices to share data.
np.testing.assert_warns can now be used as a context manager
This matches the behavior of assert_raises.
Speed improvement for np.random.shuffle
np.random.shuffle is now much faster for 1d ndarrays.
Changes
Pyrex support was removed from numpy.distutils
The method build_src.generate_a_pyrex_source will remain available; it has been monkeypatched by users to support Cython instead of Pyrex. It's recommended to switch to a better supported method of build Cython extensions though.
np.broadcast can now be called with a single argument
The resulting object in that case will simply mimic iteration over a single array. This change obsoletes distinctions like
if len(x) == 1:
shape = x[0].shape
else:
shape = np.broadcast(*x).shape
Instead, np.broadcast can be used in all cases.
np.trace now respects array subclasses
This behaviour mimics that of other functions such as np.diagonal and ensures, e.g., that for masked arrays np.trace(ma) and ma.trace() give the same result.
np.dot now raises TypeError instead of ValueError
This behaviour mimics that of other functions such as np.inner. If the two arguments cannot be cast to a common type, it could have raised a TypeError or ValueError depending on their order. Now, np.dot will now always raise a TypeError.
linalg.norm return type changes
The linalg.norm function now does all its computations in floating point and returns floating results. This change fixes bugs due to integer overflow and the failure of abs with signed integers of minimum value, e.g., int8(-128). For consistancy, floats are used even where an integer might work.
Deprecations
Views of arrays in Fortran order
The F_CONTIGUOUS flag was used to signal that views using a dtype that changed the element size would change the first index. This was always problematical for arrays that were both F_CONTIGUOUS and C_CONTIGUOUS because C_CONTIGUOUS took precedence. Relaxed stride checking results in more such dual contiguous arrays and breaks some existing code as a result. Note that this also affects changing the dtype by assigning to the dtype attribute of an array. The aim of this deprecation is to restrict views to C_CONTIGUOUS arrays at some future time. A work around that is backward compatible is to use a.T.view(...).T instead. A parameter may also be added to the view method to explicitly ask for Fortran order views, but that will not be backward compatible.
Invalid arguments for array ordering
It is currently possible to pass in arguments for the order parameter in methods like array.flatten or array.ravel that were not one of the following: 'C', 'F', 'A', 'K' (note that all of these possible values are both unicode and case insensitive). Such behavior will not be allowed in future releases.
Random number generator in the testing namespace
The Python standard library random number generator was previously exposed in the testing namespace as testing.rand. Using this generator is not recommended and it will be removed in a future release. Use generators from numpy.random namespace instead.
Random integer generation on a closed interval
In accordance with the Python C API, which gives preference to the half-open interval over the closed one, np.random.random_integers is being deprecated in favor of calling np.random.randint, which has been enhanced with the dtype parameter as described under "New Features". However, np.random.random_integers will not be removed anytime soon.
FutureWarnings
Assigning to slices/views of MaskedArray
Currently a slice of a masked array contains a view of the original data and a copy-on-write view of the mask. Consequently, any changes to the slice's mask will result in a copy of the original mask being made and that new mask being changed rather than the original. For example, if we make a slice of the original like so, view = original[:], then modifications to the data in one array will affect the data of the other but, because the mask will be copied during assignment operations, changes to the mask will remain local. A similar situation occurs when explicitly constructing a masked array using MaskedArray(data, mask), the returned array will contain a view of data but the mask will be a copy-on-write view of mask.
In the future, these cases will be normalized so that the data and mask arrays are treated the same way and modifications to either will propagate between views. In 1.11, numpy will issue a MaskedArrayFutureWarning warning whenever user code modifies the mask of a view that in the future may cause values to propagate back to the original. To silence these warnings and make your code robust against the upcoming changes, you have two options: if you want to keep the current behavior, call masked_view.unshare_mask() before modifying the mask. If you want to get the future behavior early, use masked_view._sharedmask = False. However, note that setting the _sharedmask attribute will break following explicit calls to masked_view.unshare_mask().
NumPy 1.10.4 Release Notes
This release is a bugfix source release motivated by a segfault regression. No windows binaries are provided for this release, as there appear to be bugs in the toolchain we use to generate those files. Hopefully that problem will be fixed for the next release. In the meantime, we suggest using one of the providers of windows binaries.
Compatibility notes
The trace function now calls the trace method on subclasses of ndarray, except for matrix, for which the current behavior is preserved. This is to help with the units package of AstroPy and hopefully will not cause problems.
Issues Fixed
gh-6922 BUG: numpy.recarray.sort segfaults on Windows.
gh-6937 BUG: busday_offset does the wrong thing with modifiedpreceding roll.
gh-6949 BUG: Type is lost when slicing a subclass of recarray.
Merged PRs
The following PRs have been merged into 1.10.4. When the PR is a backport, the PR number for the original PR against master is listed.
gh-6840 TST: Update travis testing script in 1.10.x
gh-6843 BUG: Fix use of python 3 only FileNotFoundError in test_f2py.
gh-6884 REL: Update pavement.py and setup.py to reflect current version.
gh-6916 BUG: Fix test_f2py so it runs correctly in runtests.py.
gh-6924 BUG: Fix segfault gh-6922.
gh-6942 Fix datetime roll='modifiedpreceding' bug.
gh-6943 DOC,BUG: Fix some latex generation problems.
gh-6950 BUG trace is not subclass aware, np.trace(ma) != ma.trace().
gh-6952 BUG recarray slices should preserve subclass.
NumPy 1.10.3 Release Notes
N/A this release did not happen due to various screwups involving PyPi.
NumPy 1.10.2 Release Notes
This release deals with a number of bugs that turned up in 1.10.1 and adds various build and release improvements.
Numpy 1.10.1 supports Python 2.6 - 2.7 and 3.2 - 3.5.
Compatibility notes
Relaxed stride checking is no longer the default
There were back compatibility problems involving views changing the dtype of multidimensional Fortran arrays that need to be dealt with over a longer timeframe.
Fix swig bug in numpy.i
Relaxed stride checking revealed a bug in array_is_fortran(a), that was using PyArray_ISFORTRAN to check for Fortran contiguity instead of PyArray_IS_F_CONTIGUOUS. You may want to regenerate swigged files using the updated numpy.i
Deprecate views changing dimensions in fortran order
This deprecates assignment of a new descriptor to the dtype attribute of a non-C-contiguous array if it result in changing the shape. This effectively bars viewing a multidimensional Fortran array using a dtype that changes the element size along the first axis.
The reason for the deprecation is that, when relaxed strides checking is enabled, arrays that are both C and Fortran contiguous are always treated as C contiguous which breaks some code that depended the two being mutually exclusive for non-scalar arrays of ndim > 1. This deprecation prepares the way to always enable relaxed stride checking.
Issues Fixed
gh-6019 Masked array repr fails for structured array with multi-dimensional column.
gh-6462 Median of empty array produces IndexError.
gh-6467 Performance regression for record array access.
gh-6468 numpy.interp uses 'left' value even when x[0]==xp[0].
gh-6475 np.allclose returns a memmap when one of its arguments is a memmap.
gh-6491 Error in broadcasting stride_tricks array.
gh-6495 Unrecognized command line option '-ffpe-summary' in gfortran.
gh-6497 Failure of reduce operation on recarrays.
gh-6498 Mention change in default casting rule in 1.10 release notes.
gh-6530 The partition function errors out on empty input.
gh-6532 numpy.inner return wrong inaccurate value sometimes.
gh-6563 Intent(out) broken in recent versions of f2py.
gh-6569 Cannot run tests after 'python setup.py build_ext -i'
gh-6572 Error in broadcasting stride_tricks array component.
gh-6575 BUG: Split produces empty arrays with wrong number of dimensions
gh-6590 Fortran Array problem in numpy 1.10.
gh-6602 Random __all__ missing choice and dirichlet.
gh-6611 ma.dot no longer always returns a masked array in 1.10.
gh-6618 NPY_FORTRANORDER in make_fortran() in numpy.i
gh-6636 Memory leak in nested dtypes in numpy.recarray
gh-6641 Subsetting recarray by fields yields a structured array.
gh-6667 ma.make_mask handles ma.nomask input incorrectly.
gh-6675 Optimized blas detection broken in master and 1.10.
gh-6678 Getting unexpected error from: X.dtype = complex (or Y = X.view(complex))
gh-6718 f2py test fail in pip installed numpy-1.10.1 in virtualenv.
gh-6719 Error compiling Cython file: Pythonic division not allowed without gil.
gh-6771 Numpy.rec.fromarrays losing dtype metadata between versions 1.9.2 and 1.10.1
gh-6781 The travis-ci script in maintenance/1.10.x needs fixing.
gh-6807 Windows testing errors for 1.10.2
Merged PRs
The following PRs have been merged into 1.10.2. When the PR is a backport, the PR number for the original PR against master is listed.
gh-5773 MAINT: Hide testing helper tracebacks when using them with pytest.
gh-6094 BUG: Fixed a bug with string representation of masked structured arrays.
gh-6208 MAINT: Speedup field access by removing unneeded safety checks.
gh-6460 BUG: Replacing the os.environ.clear by less invasive procedure.
gh-6470 BUG: Fix AttributeError in numpy distutils.
gh-6472 MAINT: Use Python 3.5 instead of 3.5-dev for travis 3.5 testing.
gh-6474 REL: Update Paver script for sdist and auto-switch test warnings.
gh-6478 BUG: Fix Intel compiler flags for OS X build.
gh-6481 MAINT: LIBPATH with spaces is now supported Python 2.7+ and Win32.
gh-6487 BUG: Allow nested use of parameters in definition of arrays in f2py.
gh-6488 BUG: Extend common blocks rather than overwriting in f2py.
gh-6499 DOC: Mention that default casting for inplace operations has changed.
gh-6500 BUG: Recarrays viewed as subarrays don't convert to np.record type.
gh-6501 REL: Add "make upload" command for built docs, update "make dist".
gh-6526 BUG: Fix use of __doc__ in setup.py for -OO mode.
gh-6527 BUG: Fix the IndexError when taking the median of an empty array.
gh-6537 BUG: Make ma.atleast_* with scalar argument return arrays.
gh-6538 BUG: Fix ma.masked_values does not shrink mask if requested.
gh-6546 BUG: Fix inner product regression for non-contiguous arrays.
gh-6553 BUG: Fix partition and argpartition error for empty input.
gh-6556 BUG: Error in broadcast_arrays with as_strided array.
gh-6558 MAINT: Minor update to "make upload" doc build command.
gh-6562 BUG: Disable view safety checks in recarray.
gh-6567 BUG: Revert some import * fixes in f2py.
gh-6574 DOC: Release notes for Numpy 1.10.2.
gh-6577 BUG: Fix for #6569, allowing build_ext --inplace
gh-6579 MAINT: Fix mistake in doc upload rule.
gh-6596 BUG: Fix swig for relaxed stride checking.
gh-6606 DOC: Update 1.10.2 release notes.
gh-6614 BUG: Add choice and dirichlet to numpy.random.__all__.
gh-6621 BUG: Fix swig make_fortran function.
gh-6628 BUG: Make allclose return python bool.
gh-6642 BUG: Fix memleak in _convert_from_dict.
gh-6643 ENH: make recarray.getitem return a recarray.
gh-6653 BUG: Fix ma dot to always return masked array.
gh-6668 BUG: ma.make_mask should always return nomask for nomask argument.
gh-6686 BUG: Fix a bug in assert_string_equal.
gh-6695 BUG: Fix removing tempdirs created during build.
gh-6697 MAINT: Fix spurious semicolon in macro definition of PyArray_FROM_OT.
gh-6698 TST: test np.rint bug for large integers.
gh-6717 BUG: Readd fallback CBLAS detection on linux.
gh-6721 BUG: Fix for #6719.
gh-6726 BUG: Fix bugs exposed by relaxed stride rollback.
gh-6757 BUG: link cblas library if cblas is detected.
gh-6756 TST: only test f2py, not f2py2.7 etc, fixes#6718.
gh-6747 DEP: Deprecate changing shape of non-C-contiguous array via descr.
gh-6775 MAINT: Include from __future__ boilerplate in some files missing it.
gh-6780 BUG: metadata is not copied to base_dtype.
gh-6783 BUG: Fix travis ci testing for new google infrastructure.
gh-6785 BUG: Quick and dirty fix for interp.
gh-6813 TST,BUG: Make test_mvoid_multidim_print work for 32 bit systems.
gh-6817 BUG: Disable 32-bit msvc9 compiler optimizations for npy_rint.
gh-6819 TST: Fix test_mvoid_multidim_print failures on Python 2.x for Windows.
Initial support for mingwpy was reverted as it was causing problems for non-windows builds.
gh-6536 BUG: Revert gh-5614 to fix non-windows build problems
A fix for np.lib.split was reverted because it resulted in "fixing" behavior that will be present in the Numpy 1.11 and that was already present in Numpy 1.9. See the discussion of the issue at gh-6575 for clarification.
gh-6576 BUG: Revert gh-6376 to fix split behavior for empty arrays.
Relaxed stride checking was reverted. There were back compatibility problems involving views changing the dtype of multidimensional Fortran arrays that need to be dealt with over a longer timeframe.
gh-6735 MAINT: Make no relaxed stride checking the default for 1.10.
Notes
A bug in the Numpy 1.10.1 release resulted in exceptions being raised for RuntimeWarning and DeprecationWarning in projects depending on Numpy. That has been fixed.
NumPy 1.10.1 Release Notes
This release deals with a few build problems that showed up in 1.10.0. Most users would not have seen these problems. The differences are:
Compiling with msvc9 or msvc10 for 32 bit Windows now requires SSE2. This was the easiest fix for what looked to be some miscompiled code when SSE2 was not used. If you need to compile for 32 bit Windows systems without SSE2 support, mingw32 should still work.
Make compiling with VS2008 python2.7 SDK easier
Change Intel compiler options so that code will also be generated to support systems without SSE4.2.
Some _config test functions needed an explicit integer return in order to avoid the openSUSE rpmlinter erring out.
We ran into a problem with pipy not allowing reuse of filenames and a resulting proliferation of ..*.postN releases. Not only were the names getting out of hand, some packages were unable to work with the postN suffix.
Numpy 1.10.1 supports Python 2.6 - 2.7 and 3.2 - 3.5.
Commits:
45a3d84 DEP: Remove warning for full when dtype is set. 0c1a5df BLD: import setuptools to allow compile with VS2008 python2.7 sdk 04211c6 BUG: mask nan to 1 in ordered compare 826716f DOC: Document the reason msvc requires SSE2 on 32 bit platforms. 49fa187 BLD: enable SSE2 for 32-bit msvc 9 and 10 compilers dcbc4cc MAINT: remove Wreturn-type warnings from config checks d6564cb BLD: do not build exclusively for SSE4.2 processors 15cb66f BLD: do not build exclusively for SSE4.2 processors c38bc08 DOC: fix var. reference in percentile docstring 78497f4 DOC: Sync 1.10.0-notes.rst in 1.10.x branch with master.
NumPy 1.10.0 Release Notes
This release supports Python 2.6 - 2.7 and 3.2 - 3.5.
Highlights
numpy.distutils now supports parallel compilation via the --parallel/-j argument passed to setup.py build
numpy.distutils now supports additional customization via site.cfg to control compilation parameters, i.e. runtime libraries, extra linking/compilation flags.
Addition of np.linalg.multi_dot: compute the dot product of two or more arrays in a single function call, while automatically selecting the fastest evaluation order.
The new function np.stack provides a general interface for joining a sequence of arrays along a new axis, complementing np.concatenate for joining along an existing axis.
Addition of nanprod to the set of nanfunctions.
Support for the '@' operator in Python 3.5.
Dropped Support
The _dotblas module has been removed. CBLAS Support is now in Multiarray.
The testcalcs.py file has been removed.
The polytemplate.py file has been removed.
npy_PyFile_Dup and npy_PyFile_DupClose have been removed from npy_3kcompat.h.
splitcmdline has been removed from numpy/distutils/exec_command.py.
try_run and get_output have been removed from numpy/distutils/command/config.py
The a._format attribute is no longer supported for array printing.
Keywords skiprows and missing removed from np.genfromtxt.
Keyword old_behavior removed from np.correlate.
Future Changes
In array comparisons like arr1 == arr2, many corner cases involving strings or structured dtypes that used to return scalars now issue FutureWarning or DeprecationWarning, and in the future will be change to either perform elementwise comparisons or raise an error.
In np.lib.split an empty array in the result always had dimension (0,) no matter the dimensions of the array being split. In Numpy 1.11 that behavior will be changed so that the dimensions will be preserved. A FutureWarning for this change has been in place since Numpy 1.9 but, due to a bug, sometimes no warning was raised and the dimensions were already preserved.
The SafeEval class will be removed in Numpy 1.11.
The alterdot and restoredot functions will be removed in Numpy 1.11.
See below for more details on these changes.
Compatibility notes
Default casting rule change
Default casting for inplace operations has changed to 'same_kind'. For instance, if n is an array of integers, and f is an array of floats, then n += f will result in a TypeError, whereas in previous Numpy versions the floats would be silently cast to ints. In the unlikely case that the example code is not an actual bug, it can be updated in a backward compatible way by rewriting it as np.add(n, f, out=n, casting='unsafe'). The old 'unsafe' default has been deprecated since Numpy 1.7.
numpy version string
The numpy version string for development builds has been changed from x.y.z.dev-githash to x.y.z.dev0+githash (note the +) in order to comply with PEP 440.
relaxed stride checking
NPY_RELAXED_STRIDE_CHECKING is now true by default.
UPDATE: In 1.10.2 the default value of NPY_RELAXED_STRIDE_CHECKING was changed to false for back compatibility reasons. More time is needed before it can be made the default. As part of the roadmap a deprecation of dimension changing views of f_contiguous not c_contiguous arrays was also added.
Concatenation of 1d arrays along any but axis=0 raises IndexError
Using axis != 0 has raised a DeprecationWarning since NumPy 1.7, it now raises an error.
np.ravel, np.diagonal and np.diag now preserve subtypes
There was inconsistent behavior between x.ravel() and np.ravel(x), as well as between x.diagonal() and np.diagonal(x), with the methods preserving subtypes while the functions did not. This has been fixed and the functions now behave like the methods, preserving subtypes except in the case of matrices. Matrices are special cased for backward compatibility and still return 1-D arrays as before. If you need to preserve the matrix subtype, use the methods instead of the functions.
rollaxis and swapaxes always return a view
Previously, a view was returned except when no change was made in the order of the axes, in which case the input array was returned. A view is now returned in all cases.
nonzero now returns base ndarrays
Previously, an inconsistency existed between 1-D inputs (returning a base ndarray) and higher dimensional ones (which preserved subclasses). Behavior has been unified, and the return will now be a base ndarray. Subclasses can still override this behavior by providing their own nonzero method.
C API
The changes to swapaxes also apply to the PyArray_SwapAxes C function, which now returns a view in all cases.
The changes to nonzero also apply to the PyArray_Nonzero C function, which now returns a base ndarray in all cases.
The dtype structure (PyArray_Descr) has a new member at the end to cache its hash value. This shouldn't affect any well-written applications.
The change to the concatenation function DeprecationWarning also affects PyArray_ConcatenateArrays,
recarray field return types
Previously the returned types for recarray fields accessed by attribute and by index were inconsistent, and fields of string type were returned as chararrays. Now, fields accessed by either attribute or indexing will return an ndarray for fields of non-structured type, and a recarray for fields of structured type. Notably, this affect recarrays containing strings with whitespace, as trailing whitespace is trimmed from chararrays but kept in ndarrays of string type. Also, the dtype.type of nested structured fields is now inherited.
recarray views
Viewing an ndarray as a recarray now automatically converts the dtype to np.record. See new record array documentation. Additionally, viewing a recarray with a non-structured dtype no longer converts the result's type to ndarray - the result will remain a recarray.
'out' keyword argument of ufuncs now accepts tuples of arrays
When using the 'out' keyword argument of a ufunc, a tuple of arrays, one per ufunc output, can be provided. For ufuncs with a single output a single array is also a valid 'out' keyword argument. Previously a single array could be provided in the 'out' keyword argument, and it would be used as the first output for ufuncs with multiple outputs, is deprecated, and will result in a DeprecationWarning now and an error in the future.
byte-array indices now raises an IndexError
Indexing an ndarray using a byte-string in Python 3 now raises an IndexError instead of a ValueError.
Masked arrays containing objects with arrays
For such (rare) masked arrays, getting a single masked item no longer returns a corrupted masked array, but a fully masked version of the item.
Median warns and returns nan when invalid values are encountered
Similar to mean, median and percentile now emits a Runtime warning and returns NaN in slices where a NaN is present. To compute the median or percentile while ignoring invalid values use the new nanmedian or nanpercentile functions.
Functions available from numpy.ma.testutils have changed
All functions from numpy.testing were once available from numpy.ma.testutils but not all of them were redefined to work with masked arrays. Most of those functions have now been removed from numpy.ma.testutils with a small subset retained in order to preserve backward compatibility. In the long run this should help avoid mistaken use of the wrong functions, but it may cause import problems for some.
New Features
Reading extra flags from site.cfg
Previously customization of compilation of dependency libraries and numpy itself was only accomblishable via code changes in the distutils package. Now numpy.distutils reads in the following extra flags from each group of the site.cfg:
runtime_library_dirs/rpath, sets runtime library directories to override
LD_LIBRARY_PATH
extra_compile_args, add extra flags to the compilation of sources
extra_link_args, add extra flags when linking libraries
This should, at least partially, complete user customization.
np.cbrt to compute cube root for real floats
np.cbrt wraps the C99 cube root function cbrt. Compared to np.power(x, 1./3.) it is well defined for negative real floats and a bit faster.
numpy.distutils now allows parallel compilation
By passing --parallel=n or -j n to setup.py build the compilation of extensions is now performed in n parallel processes. The parallelization is limited to files within one extension so projects using Cython will not profit because it builds extensions from single files.
genfromtxt has a new max_rows argument
A max_rows argument has been added to genfromtxt to limit the number of rows read in a single call. Using this functionality, it is possible to read in multiple arrays stored in a single file by making repeated calls to the function.
New function np.broadcast_to for invoking array broadcasting
np.broadcast_to manually broadcasts an array to a given shape according to numpy's broadcasting rules. The functionality is similar to broadcast_arrays, which in fact has been rewritten to use broadcast_to internally, but only a single array is necessary.
New context manager clear_and_catch_warnings for testing warnings
When Python emits a warning, it records that this warning has been emitted in the module that caused the warning, in a module attribute __warningregistry__. Once this has happened, it is not possible to emit the warning again, unless you clear the relevant entry in __warningregistry__. This makes is hard and fragile to test warnings, because if your test comes after another that has already caused the warning, you will not be able to emit the warning or test it. The context manager clear_and_catch_warnings clears warnings from the module registry on entry and resets them on exit, meaning that warnings can be re-raised.
cov has new fweights and aweights arguments
The fweights and aweights arguments add new functionality to covariance calculations by applying two types of weighting to observation vectors. An array of fweights indicates the number of repeats of each observation vector, and an array of aweights provides their relative importance or probability.
Support for the '@' operator in Python 3.5+
Python 3.5 adds support for a matrix multiplication operator '@' proposed in PEP465. Preliminary support for that has been implemented, and an equivalent function matmul has also been added for testing purposes and use in earlier Python versions. The function is preliminary and the order and number of its optional arguments can be expected to change.
New argument norm to fft functions
The default normalization has the direct transforms unscaled and the inverse transforms are scaled by 1/n . It is possible to obtain unitary transforms by setting the keyword argument norm to "ortho" (default is None) so that both direct and inverse transforms will be scaled by 1/\\sqrt{n} .
Improvements
np.digitize using binary search
np.digitize is now implemented in terms of np.searchsorted. This means that a binary search is used to bin the values, which scales much better for larger number of bins than the previous linear search. It also removes the requirement for the input array to be 1-dimensional.
np.poly now casts integer inputs to float
np.poly will now cast 1-dimensional input arrays of integer type to double precision floating point, to prevent integer overflow when computing the monic polynomial. It is still possible to obtain higher precision results by passing in an array of object type, filled e.g. with Python ints.
np.interp can now be used with periodic functions
np.interp now has a new parameter period that supplies the period of the input data xp. In such case, the input data is properly normalized to the given period and one end point is added to each extremity of xp in order to close the previous and the next period cycles, resulting in the correct interpolation behavior.
np.pad supports more input types for pad_width and constant_values
constant_values parameters now accepts NumPy arrays and float values. NumPy arrays are supported as input for pad_width, and an exception is raised if its values are not of integral type.
np.argmax and np.argmin now support an out argument
The out parameter was added to np.argmax and np.argmin for consistency with ndarray.argmax and ndarray.argmin. The new parameter behaves exactly as it does in those methods.
More system C99 complex functions detected and used
All of the functions in complex.h are now detected. There are new fallback implementations of the following functions.
npy_ctan,
npy_cacos, npy_casin, npy_catan
npy_ccosh, npy_csinh, npy_ctanh,
npy_cacosh, npy_casinh, npy_catanh
As a result of these improvements, there will be some small changes in returned values, especially for corner cases.
np.loadtxt support for the strings produced by the float.hex method
The strings produced by float.hex look like 0x1.921fb54442d18p+1, so this is not the hex used to represent unsigned integer types.
np.isclose properly handles minimal values of integer dtypes
In order to properly handle minimal values of integer types, np.isclose will now cast to the float dtype during comparisons. This aligns its behavior with what was provided by np.allclose.
np.allclose uses np.isclose internally.
np.allclose now uses np.isclose internally and inherits the ability to compare NaNs as equal by setting equal_nan=True. Subclasses, such as np.ma.MaskedArray, are also preserved now.
np.genfromtxt now handles large integers correctly
np.genfromtxt now correctly handles integers larger than 2**31-1 on 32-bit systems and larger than 2**63-1 on 64-bit systems (it previously crashed with an OverflowError in these cases). Integers larger than 2**63-1 are converted to floating-point values.
np.load, np.save have pickle backward compatibility flags
The functions np.load and np.save have additional keyword arguments for controlling backward compatibility of pickled Python objects. This enables Numpy on Python 3 to load npy files containing object arrays that were generated on Python 2.
MaskedArray support for more complicated base classes
Built-in assumptions that the baseclass behaved like a plain array are being removed. In particular, setting and getting elements and ranges will respect baseclass overrides of __setitem__ and __getitem__, and arithmetic will respect overrides of __add__, __sub__, etc.
Changes
dotblas functionality moved to multiarray
The cblas versions of dot, inner, and vdot have been integrated into the multiarray module. In particular, vdot is now a multiarray function, which it was not before.
stricter check of gufunc signature compliance
Inputs to generalized universal functions are now more strictly checked against the function's signature: all core dimensions are now required to be present in input arrays; core dimensions with the same label must have the exact same size; and output core dimension's must be specified, either by a same label input core dimension or by a passed-in output array.
views returned from np.einsum are writeable
Views returned by np.einsum will now be writeable whenever the input array is writeable.
np.argmin skips NaT values
np.argmin now skips NaT values in datetime64 and timedelta64 arrays, making it consistent with np.min, np.argmax and np.max.
Deprecations
Array comparisons involving strings or structured dtypes
Normally, comparison operations on arrays perform elementwise comparisons and return arrays of booleans. But in some corner cases, especially involving strings are structured dtypes, NumPy has historically returned a scalar instead. For example:
### Current behaviour
np.arange(2) == "foo"
# -> False
np.arange(2) < "foo"
# -> True on Python 2, error on Python 3
np.ones(2, dtype="i4,i4") == np.ones(2, dtype="i4,i4,i4")
# -> False
Continuing work started in 1.9, in 1.10 these comparisons will now raise FutureWarning or DeprecationWarning, and in the future they will be modified to behave more consistently with other comparison operations, e.g.:
### Future behaviour
np.arange(2) == "foo"
# -> array([False, False])
np.arange(2) < "foo"
# -> error, strings and numbers are not orderable
np.ones(2, dtype="i4,i4") == np.ones(2, dtype="i4,i4,i4")
# -> [False, False]
SafeEval
The SafeEval class in numpy/lib/utils.py is deprecated and will be removed in the next release.
alterdot, restoredot
The alterdot and restoredot functions no longer do anything, and are deprecated.
pkgload, PackageLoader
These ways of loading packages are now deprecated.
bias, ddof arguments to corrcoef
The values for the bias and ddof arguments to the corrcoef function canceled in the division implied by the correlation coefficient and so had no effect on the returned values.
We now deprecate these arguments to corrcoef and the masked array version ma.corrcoef.
Because we are deprecating the bias argument to ma.corrcoef, we also deprecate the use of the allow_masked argument as a positional argument, as its position will change with the removal of bias. allow_masked will in due course become a keyword-only argument.
dtype string representation changes
Since 1.6, creating a dtype object from its string representation, e.g. 'f4', would issue a deprecation warning if the size did not correspond to an existing type, and default to creating a dtype of the default size for the type. Starting with this release, this will now raise a TypeError.
The only exception is object dtypes, where both 'O4' and 'O8' will still issue a deprecation warning. This platform-dependent representation will raise an error in the next release.
In preparation for this upcoming change, the string representation of an object dtype, i.e. np.dtype(object).str, no longer includes the item size, i.e. will return '|O' instead of '|O4' or '|O8' as before.
Reviewed by: wiz@
Upstream changes:
NumPy 1.9.2 Release Notes
*************************
This is a bugfix only release in the 1.9.x series.
Issues fixed
============
* `#5316 <https://github.com/numpy/numpy/issues/5316>`__: fix too large dtype alignment of strings and complex types
* `#5424 <https://github.com/numpy/numpy/issues/5424>`__: fix ma.median when used on ndarrays
* `#5481 <https://github.com/numpy/numpy/issues/5481>`__: Fix astype for structured array fields of different byte order
* `#5354 <https://github.com/numpy/numpy/issues/5354>`__: fix segfault when clipping complex arrays
* `#5524 <https://github.com/numpy/numpy/issues/5524>`__: allow np.argpartition on non ndarrays
* `#5612 <https://github.com/numpy/numpy/issues/5612>`__: Fixes ndarray.fill to accept full range of uint64
* `#5155 <https://github.com/numpy/numpy/issues/5155>`__: Fix loadtxt with comments=None and a string None data
* `#4476 <https://github.com/numpy/numpy/issues/4476>`__: Masked array view fails if structured dtype has datetime component
* `#5388 <https://github.com/numpy/numpy/issues/5388>`__: Make RandomState.set_state and RandomState.get_state threadsafe
* `#5390 <https://github.com/numpy/numpy/issues/5390>`__: make seed, randint and shuffle threadsafe
* `#5374 <https://github.com/numpy/numpy/issues/5374>`__: Fixed incorrect assert_array_almost_equal_nulp documentation
* `#5393 <https://github.com/numpy/numpy/issues/5393>`__: Add support for ATLAS > 3.9.33.
* `#5313 <https://github.com/numpy/numpy/issues/5313>`__: PyArray_AsCArray caused segfault for 3d arrays
* `#5492 <https://github.com/numpy/numpy/issues/5492>`__: handle out of memory in rfftf
* `#4181 <https://github.com/numpy/numpy/issues/4181>`__: fix a few bugs in the random.pareto docstring
* `#5359 <https://github.com/numpy/numpy/issues/5359>`__: minor changes to linspace docstring
* `#4723 <https://github.com/numpy/numpy/issues/4723>`__: fix a compile issues on AIX
NumPy 1.9.1 Release Notes
*************************
This is a bugfix only release in the 1.9.x series.
Issues fixed
============
* gh-5184: restore linear edge behaviour of gradient to as it was in < 1.9.
The second order behaviour is available via the `edge_order` keyword
* gh-4007: workaround Accelerate sgemv crash on OSX 10.9
* gh-5100: restore object dtype inference from iterable objects without `len()`
* gh-5163: avoid gcc-4.1.2 (red hat 5) miscompilation causing a crash
* gh-5138: fix nanmedian on arrays containing inf
* gh-5240: fix not returning out array from ufuncs with subok=False set
* gh-5203: copy inherited masks in MaskedArray.__array_finalize__
* gh-2317: genfromtxt did not handle filling_values=0 correctly
* gh-5067: restore api of npy_PyFile_DupClose in python2
* gh-5063: cannot convert invalid sequence index to tuple
* gh-5082: Segmentation fault with argmin() on unicode arrays
* gh-5095: don't propagate subtypes from np.where
* gh-5104: np.inner segfaults with SciPy's sparse matrices
* gh-5251: Issue with fromarrays not using correct format for unicode arrays
* gh-5136: Import dummy_threading if importing threading fails
* gh-5148: Make numpy import when run with Python flag '-OO'
* gh-5147: Einsum double contraction in particular order causes ValueError
* gh-479: Make f2py work with intent(in out)
* gh-5170: Make python2 .npy files readable in python3
* gh-5027: Use 'll' as the default length specifier for long long
* gh-4896: fix build error with MSVC 2013 caused by C99 complex support
* gh-4465: Make PyArray_PutTo respect writeable flag
* gh-5225: fix crash when using arange on datetime without dtype set
* gh-5231: fix build in c99 mode
NumPy 1.9.0 Release Notes
*************************
This release supports Python 2.6 - 2.7 and 3.2 - 3.4.
Highlights
==========
* Numerous performance improvements in various areas, most notably indexing and
operations on small arrays are significantly faster.
Indexing operations now also release the GIL.
* Addition of `nanmedian` and `nanpercentile` rounds out the nanfunction set.
Dropped Support
===============
* The oldnumeric and numarray modules have been removed.
* The doc/pyrex and doc/cython directories have been removed.
* The doc/numpybook directory has been removed.
* The numpy/testing/numpytest.py file has been removed together with
the importall function it contained.
Future Changes
==============
* The numpy/polynomial/polytemplate.py file will be removed in NumPy 1.10.0.
* Default casting for inplace operations will change to 'same_kind' in
Numpy 1.10.0. This will certainly break some code that is currently
ignoring the warning.
* Relaxed stride checking will be the default in 1.10.0
* String version checks will break because, e.g., '1.9' > '1.10' is True. A
NumpyVersion class has been added that can be used for such comparisons.
* The diagonal and diag functions will return writeable views in 1.10.0
* The `S` and/or `a` dtypes may be changed to represent Python strings
instead of bytes, in Python 3 these two types are very different.
Compatibility notes
===================
The diagonal and diag functions return readonly views.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In NumPy 1.8, the diagonal and diag functions returned readonly copies, in
NumPy 1.9 they return readonly views, and in 1.10 they will return writeable
views.
Special scalar float values don't cause upcast to double anymore
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In previous numpy versions operations involving floating point scalars
containing special values ``NaN``, ``Inf`` and ``-Inf`` caused the result
type to be at least ``float64``. As the special values can be represented
in the smallest available floating point type, the upcast is not performed
anymore.
For example the dtype of:
``np.array([1.], dtype=np.float32) * float('nan')``
now remains ``float32`` instead of being cast to ``float64``.
Operations involving non-special values have not been changed.
Percentile output changes
~~~~~~~~~~~~~~~~~~~~~~~~~
If given more than one percentile to compute numpy.percentile returns an
array instead of a list. A single percentile still returns a scalar. The
array is equivalent to converting the list returned in older versions
to an array via ``np.array``.
If the ``overwrite_input`` option is used the input is only partially
instead of fully sorted.
ndarray.tofile exception type
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
All ``tofile`` exceptions are now ``IOError``, some were previously
``ValueError``.
Invalid fill value exceptions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Two changes to numpy.ma.core._check_fill_value:
* When the fill value is a string and the array type is not one of
'OSUV', TypeError is raised instead of the default fill value being used.
* When the fill value overflows the array type, TypeError is raised instead
of OverflowError.
Polynomial Classes no longer derived from PolyBase
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This may cause problems with folks who depended on the polynomial classes
being derived from PolyBase. They are now all derived from the abstract
base class ABCPolyBase. Strictly speaking, there should be a deprecation
involved, but no external code making use of the old baseclass could be
found.
Using numpy.random.binomial may change the RNG state vs. numpy < 1.9
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A bug in one of the algorithms to generate a binomial random variate has
been fixed. This change will likely alter the number of random draws
performed, and hence the sequence location will be different after a
call to distribution.c::rk_binomial_btpe. Any tests which rely on the RNG
being in a known state should be checked and/or updated as a result.
Random seed enforced to be a 32 bit unsigned integer
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``np.random.seed`` and ``np.random.RandomState`` now throw a ``ValueError``
if the seed cannot safely be converted to 32 bit unsigned integers.
Applications that now fail can be fixed by masking the higher 32 bit values to
zero: ``seed = seed & 0xFFFFFFFF``. This is what is done silently in older
versions so the random stream remains the same.
Argmin and argmax out argument
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``out`` argument to ``np.argmin`` and ``np.argmax`` and their
equivalent C-API functions is now checked to match the desired output shape
exactly. If the check fails a ``ValueError`` instead of ``TypeError`` is
raised.
Einsum
~~~~~~
Remove unnecessary broadcasting notation restrictions.
``np.einsum('ijk,j->ijk', A, B)`` can also be written as
``np.einsum('ij...,j->ij...', A, B)`` (ellipsis is no longer required on 'j')
Indexing
~~~~~~~~
The NumPy indexing has seen a complete rewrite in this version. This makes
most advanced integer indexing operations much faster and should have no
other implications. However some subtle changes and deprecations were
introduced in advanced indexing operations:
* Boolean indexing into scalar arrays will always return a new 1-d array.
This means that ``array(1)[array(True)]`` gives ``array([1])`` and
not the original array.
* Advanced indexing into one dimensional arrays used to have
(undocumented) special handling regarding repeating the value array in
assignments when the shape of the value array was too small or did not
match. Code using this will raise an error. For compatibility you can
use ``arr.flat[index] = values``, which uses the old code branch. (for
example ``a = np.ones(10); a[np.arange(10)] = [1, 2, 3]``)
* The iteration order over advanced indexes used to be always C-order.
In NumPy 1.9. the iteration order adapts to the inputs and is not
guaranteed (with the exception of a *single* advanced index which is
never reversed for compatibility reasons). This means that the result
is undefined if multiple values are assigned to the same element. An
example for this is ``arr[[0, 0], [1, 1]] = [1, 2]``, which may set
``arr[0, 1]`` to either 1 or 2.
* Equivalent to the iteration order, the memory layout of the advanced
indexing result is adapted for faster indexing and cannot be predicted.
* All indexing operations return a view or a copy. No indexing operation
will return the original array object. (For example ``arr[...]``)
* In the future Boolean array-likes (such as lists of python bools) will
always be treated as Boolean indexes and Boolean scalars (including
python ``True``) will be a legal *boolean* index. At this time, this is
already the case for scalar arrays to allow the general
``positive = a[a > 0]`` to work when ``a`` is zero dimensional.
* In NumPy 1.8 it was possible to use ``array(True)`` and
``array(False)`` equivalent to 1 and 0 if the result of the operation
was a scalar. This will raise an error in NumPy 1.9 and, as noted
above, treated as a boolean index in the future.
* All non-integer array-likes are deprecated, object arrays of custom
integer like objects may have to be cast explicitly.
* The error reporting for advanced indexing is more informative, however
the error type has changed in some cases. (Broadcasting errors of
indexing arrays are reported as ``IndexError``)
* Indexing with more then one ellipsis (``...``) is deprecated.
Non-integer reduction axis indexes are deprecated
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Non-integer axis indexes to reduction ufuncs like `add.reduce` or `sum` are
deprecated.
``promote_types`` and string dtype
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``promote_types`` function now returns a valid string length when given an
integer or float dtype as one argument and a string dtype as another
argument. Previously it always returned the input string dtype, even if it
wasn't long enough to store the max integer/float value converted to a
string.
``can_cast`` and string dtype
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``can_cast`` function now returns False in "safe" casting mode for
integer/float dtype and string dtype if the string dtype length is not long
enough to store the max integer/float value converted to a string.
Previously ``can_cast`` in "safe" mode returned True for integer/float
dtype and a string dtype of any length.
astype and string dtype
~~~~~~~~~~~~~~~~~~~~~~~
The ``astype`` method now returns an error if the string dtype to cast to
is not long enough in "safe" casting mode to hold the max value of
integer/float array that is being casted. Previously the casting was
allowed even if the result was truncated.
`npyio.recfromcsv` keyword arguments change
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`npyio.recfromcsv` no longer accepts the undocumented `update` keyword,
which used to override the `dtype` keyword.
The ``doc/swig`` directory moved
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``doc/swig`` directory has been moved to ``tools/swig``.
The ``npy_3kcompat.h`` header changed
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The unused ``simple_capsule_dtor`` function has been removed from
``npy_3kcompat.h``. Note that this header is not meant to be used outside
of numpy; other projects should be using their own copy of this file when
needed.
Negative indices in C-Api ``sq_item`` and ``sq_ass_item`` sequence methods
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
When directly accessing the ``sq_item`` or ``sq_ass_item`` PyObject slots
for item getting, negative indices will not be supported anymore.
``PySequence_GetItem`` and ``PySequence_SetItem`` however fix negative
indices so that they can be used there.
NDIter
~~~~~~
When ``NpyIter_RemoveAxis`` is now called, the iterator range will be reset.
When a multi index is being tracked and an iterator is not buffered, it is
possible to use ``NpyIter_RemoveAxis``. In this case an iterator can shrink
in size. Because the total size of an iterator is limited, the iterator
may be too large before these calls. In this case its size will be set to ``-1``
and an error issued not at construction time but when removing the multi
index, setting the iterator range, or getting the next function.
This has no effect on currently working code, but highlights the necessity
of checking for an error return if these conditions can occur. In most
cases the arrays being iterated are as large as the iterator so that such
a problem cannot occur.
This change was already applied to the 1.8.1 release.
``zeros_like`` for string dtypes now returns empty strings
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To match the `zeros` function `zeros_like` now returns an array initialized
with empty strings instead of an array filled with `'0'`.
New Features
============
Percentile supports more interpolation options
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``np.percentile`` now has the interpolation keyword argument to specify in
which way points should be interpolated if the percentiles fall between two
values. See the documentation for the available options.
Generalized axis support for median and percentile
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``np.median`` and ``np.percentile`` now support generalized axis arguments like
ufunc reductions do since 1.7. One can now say axis=(index, index) to pick a
list of axes for the reduction. The ``keepdims`` keyword argument was also
added to allow convenient broadcasting to arrays of the original shape.
Dtype parameter added to ``np.linspace`` and ``np.logspace``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The returned data type from the ``linspace`` and ``logspace`` functions can
now be specified using the dtype parameter.
More general ``np.triu`` and ``np.tril`` broadcasting
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For arrays with ``ndim`` exceeding 2, these functions will now apply to the
final two axes instead of raising an exception.
``tobytes`` alias for ``tostring`` method
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``ndarray.tobytes`` and ``MaskedArray.tobytes`` have been added as aliases
for ``tostring`` which exports arrays as ``bytes``. This is more consistent
in Python 3 where ``str`` and ``bytes`` are not the same.
Build system
~~~~~~~~~~~~
Added experimental support for the ppc64le and OpenRISC architecture.
Compatibility to python ``numbers`` module
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
All numerical numpy types are now registered with the type hierarchy in
the python ``numbers`` module.
``increasing`` parameter added to ``np.vander``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ordering of the columns of the Vandermonde matrix can be specified with
this new boolean argument.
``unique_counts`` parameter added to ``np.unique``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The number of times each unique item comes up in the input can now be
obtained as an optional return value.
Support for median and percentile in nanfunctions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``np.nanmedian`` and ``np.nanpercentile`` functions behave like
the median and percentile functions except that NaNs are ignored.
NumpyVersion class added
~~~~~~~~~~~~~~~~~~~~~~~~
The class may be imported from numpy.lib and can be used for version
comparison when the numpy version goes to 1.10.devel. For example::
>>> from numpy.lib import NumpyVersion
>>> if NumpyVersion(np.__version__) < '1.10.0'):
... print('Wow, that is an old NumPy version!')
Allow saving arrays with large number of named columns
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The numpy storage format 1.0 only allowed the array header to have a total size
of 65535 bytes. This can be exceeded by structured arrays with a large number
of columns. A new format 2.0 has been added which extends the header size to 4
GiB. `np.save` will automatically save in 2.0 format if the data requires it,
else it will always use the more compatible 1.0 format.
Full broadcasting support for ``np.cross``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``np.cross`` now properly broadcasts its two input arrays, even if they
have different number of dimensions. In earlier versions this would result
in either an error being raised, or wrong results computed.
Improvements
============
Better numerical stability for sum in some cases
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Pairwise summation is now used in the sum method, but only along the fast
axis and for groups of the values <= 8192 in length. This should also
improve the accuracy of var and std in some common cases.
Percentile implemented in terms of ``np.partition``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
``np.percentile`` has been implemented in terms of ``np.partition`` which
only partially sorts the data via a selection algorithm. This improves the
time complexity from ``O(nlog(n))`` to ``O(n)``.
Performance improvement for ``np.array``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The performance of converting lists containing arrays to arrays using
``np.array`` has been improved. It is now equivalent in speed to
``np.vstack(list)``.
Performance improvement for ``np.searchsorted``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For the built-in numeric types, ``np.searchsorted`` no longer relies on the
data type's ``compare`` function to perform the search, but is now
implemented by type specific functions. Depending on the size of the
inputs, this can result in performance improvements over 2x.
Optional reduced verbosity for np.distutils
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Set ``numpy.distutils.system_info.system_info.verbosity = 0`` and then
calls to ``numpy.distutils.system_info.get_info('blas_opt')`` will not
print anything on the output. This is mostly for other packages using
numpy.distutils.
Covariance check in ``np.random.multivariate_normal``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A ``RuntimeWarning`` warning is raised when the covariance matrix is not
positive-semidefinite.
Polynomial Classes no longer template based
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The polynomial classes have been refactored to use an abstract base class
rather than a template in order to implement a common interface. This makes
importing the polynomial package faster as the classes do not need to be
compiled on import.
More GIL releases
~~~~~~~~~~~~~~~~~
Several more functions now release the Global Interpreter Lock allowing more
efficient parallization using the ``threading`` module. Most notably the GIL is
now released for fancy indexing, ``np.where`` and the ``random`` module now
uses a per-state lock instead of the GIL.
MaskedArray support for more complicated base classes
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Built-in assumptions that the baseclass behaved like a plain array are being
removed. In particalur, ``repr`` and ``str`` should now work more reliably.
C-API
~~~~~
Deprecations
============
Non-integer scalars for sequence repetition
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Using non-integer numpy scalars to repeat python sequences is deprecated.
For example ``np.float_(2) * [1]`` will be an error in the future.
``select`` input deprecations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The integer and empty input to ``select`` is deprecated. In the future only
boolean arrays will be valid conditions and an empty ``condlist`` will be
considered an input error instead of returning the default.
``rank`` function
~~~~~~~~~~~~~~~~~
The ``rank`` function has been deprecated to avoid confusion with
``numpy.linalg.matrix_rank``.
Object array equality comparisons
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In the future object array comparisons both `==` and `np.equal` will not
make use of identity checks anymore. For example:
>>> a = np.array([np.array([1, 2, 3]), 1])
>>> b = np.array([np.array([1, 2, 3]), 1])
>>> a == b
will consistently return False (and in the future an error) even if the array
in `a` and `b` was the same object.
The equality operator `==` will in the future raise errors like `np.equal`
if broadcasting or element comparisons, etc. fails.
Comparison with `arr == None` will in the future do an elementwise comparison
instead of just returning False. Code should be using `arr is None`.
All of these changes will give Deprecation- or FutureWarnings at this time.
C-API
~~~~~
The utility function npy_PyFile_Dup and npy_PyFile_DupClose are broken by the
internal buffering python 3 applies to its file objects.
To fix this two new functions npy_PyFile_Dup2 and npy_PyFile_DupClose2 are
declared in npy_3kcompat.h and the old functions are deprecated.
Due to the fragile nature of these functions it is recommended to instead use
the python API when possible.
This change was already applied to the 1.8.1 release.
NumPy 1.8.2 Release Notes
*************************
This is a bugfix only release in the 1.8.x series.
Issues fixed
============
* gh-4836: partition produces wrong results for multiple selections in equal ranges
* gh-4656: Make fftpack._raw_fft threadsafe
* gh-4628: incorrect argument order to _copyto in in np.nanmax, np.nanmin
* gh-4642: Hold GIL for converting dtypes types with fields
* gh-4733: fix np.linalg.svd(b, compute_uv=False)
* gh-4853: avoid unaligned simd load on reductions on i386
* gh-4722: Fix seg fault converting empty string to object
* gh-4613: Fix lack of NULL check in array_richcompare
* gh-4774: avoid unaligned access for strided byteswap
* gh-650: Prevent division by zero when creating arrays from some buffers
* gh-4602: ifort has issues with optimization flag O2, use O1
NumPy 1.8.1 Release Notes
*************************
This is a bugfix only release in the 1.8.x series.
Issues fixed
============
* gh-4276: Fix mean, var, std methods for object arrays
* gh-4262: remove insecure mktemp usage
* gh-2385: absolute(complex(inf)) raises invalid warning in python3
* gh-4024: Sequence assignment doesn't raise exception on shape mismatch
* gh-4027: Fix chunked reading of strings longer than BUFFERSIZE
* gh-4109: Fix object scalar return type of 0-d array indices
* gh-4018: fix missing check for memory allocation failure in ufuncs
* gh-4156: high order linalg.norm discards imaginary elements of complex arrays
* gh-4144: linalg: norm fails on longdouble, signed int
* gh-4094: fix NaT handling in _strided_to_strided_string_to_datetime
* gh-4051: fix uninitialized use in _strided_to_strided_string_to_datetime
* gh-4093: Loading compressed .npz file fails under Python 2.6.6
* gh-4138: segfault with non-native endian memoryview in python 3.4
* gh-4123: Fix missing NULL check in lexsort
* gh-4170: fix native-only long long check in memoryviews
* gh-4187: Fix large file support on 32 bit
* gh-4152: fromfile: ensure file handle positions are in sync in python3
* gh-4176: clang compatibility: Typos in conversion_utils
* gh-4223: Fetching a non-integer item caused array return
* gh-4197: fix minor memory leak in memoryview failure case
* gh-4206: fix build with single-threaded python
* gh-4220: add versionadded:: 1.8.0 to ufunc.at docstring
* gh-4267: improve handling of memory allocation failure
* gh-4267: fix use of capi without gil in ufunc.at
* gh-4261: Detect vendor versions of GNU Compilers
* gh-4253: IRR was returning nan instead of valid negative answer
* gh-4254: fix unnecessary byte order flag change for byte arrays
* gh-3263: numpy.random.shuffle clobbers mask of a MaskedArray
* gh-4270: np.random.shuffle not work with flexible dtypes
* gh-3173: Segmentation fault when 'size' argument to random.multinomial
* gh-2799: allow using unique with lists of complex
* gh-3504: fix linspace truncation for integer array scalar
* gh-4191: get_info('openblas') does not read libraries key
* gh-3348: Access violation in _descriptor_from_pep3118_format
* gh-3175: segmentation fault with numpy.array() from bytearray
* gh-4266: histogramdd - wrong result for entries very close to last boundary
* gh-4408: Fix stride_stricks.as_strided function for object arrays
* gh-4225: fix log1p and exmp1 return for np.inf on windows compiler builds
* gh-4359: Fix infinite recursion in str.format of flex arrays
* gh-4145: Incorrect shape of broadcast result with the exponent operator
* gh-4483: Fix commutativity of {dot,multiply,inner}(scalar, matrix_of_objs)
* gh-4466: Delay npyiter size check when size may change
* gh-4485: Buffered stride was erroneously marked fixed
* gh-4354: byte_bounds fails with datetime dtypes
* gh-4486: segfault/error converting from/to high-precision datetime64 objects
* gh-4428: einsum(None, None, None, None) causes segfault
* gh-4134: uninitialized use for for size 1 object reductions
Changes
=======
NDIter
~~~~~~
When ``NpyIter_RemoveAxis`` is now called, the iterator range will be reset.
When a multi index is being tracked and an iterator is not buffered, it is
possible to use ``NpyIter_RemoveAxis``. In this case an iterator can shrink
in size. Because the total size of an iterator is limited, the iterator
may be too large before these calls. In this case its size will be set to ``-1``
and an error issued not at construction time but when removing the multi
index, setting the iterator range, or getting the next function.
This has no effect on currently working code, but highlights the necessity
of checking for an error return if these conditions can occur. In most
cases the arrays being iterated are as large as the iterator so that such
a problem cannot occur.
Optional reduced verbosity for np.distutils
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Set ``numpy.distutils.system_info.system_info.verbosity = 0`` and then
calls to ``numpy.distutils.system_info.get_info('blas_opt')`` will not
print anything on the output. This is mostly for other packages using
numpy.distutils.
Deprecations
============
C-API
~~~~~
The utility function npy_PyFile_Dup and npy_PyFile_DupClose are broken by the
internal buffering python 3 applies to its file objects.
To fix this two new functions npy_PyFile_Dup2 and npy_PyFile_DupClose2 are
declared in npy_3kcompat.h and the old functions are deprecated.
Due to the fragile nature of these functions it is recommended to instead use
the python API when possible.
* New, no 2to3, Python 2 and Python 3 are supported by a common code base.
* New, gufuncs for linear algebra, enabling operations on stacked arrays.
* New, inplace fancy indexing for ufuncs with the ``.at`` method.
* New, ``partition`` function, partial sorting via selection for fast median.
* New, ``nanmean``, ``nanvar``, and ``nanstd`` functions skipping NaNs.
* New, ``full`` and ``full_like`` functions to create value initialized arrays.
* New, ``PyUFunc_RegisterLoopForDescr``, better ufunc support for user dtypes.
* Numerous performance improvements in many areas.
* Support for Python versions 2.4 and 2.5 has been dropped.
* Support for SCons has been removed.
gh-2973 Fix `1` is printed during numpy.test()
gh-2983 BUG: gh-2969: Backport memory leak fix 80b3a34.
gh-3007 Backport gh-3006
gh-2984 Backport fix complex polynomial fit
gh-2982 BUG: Make nansum work with booleans.
gh-2985 Backport large sort fixes
gh-3039 Backport object take
gh-3105 Backport nditer fix op axes initialization
gh-3108 BUG: npy-pkg-config ini files were missing after Bento build.
gh-3124 BUG: PyArray_LexSort allocates too much temporary memory.
gh-3131 BUG: Exported f2py_size symbol prevents linking multiple f2py
modules.
gh-3117 Backport gh-2992
gh-3135 DOC: Add mention of PyArray_SetBaseObject stealing a reference
gh-3134 DOC: Fix typo in fft docs (the indexing variable is 'm', not 'n').
gh-3136 Backport 3128
changes: any new features, performance improvements and bug fixes,
Some highlights are:
-Re-introduction of datetime dtype support to deal with dates in arrays.
-A new 16-bit floating point type.
-A new iterator, which improves performance of many functions.
From Wen Heping in PR pkg/43204.
This minor release removes datetime support, which fixes the binary
incompatibility issues with SciPy and other packages. It also includes several
bug fixes. No new features are introduced.
Bugs fixed
----------
- #1336: Fix for 1299 exposes Bus error on Sparc
- #1379: CPU ID not set correctly on PARISC
- #1388: frombuffer calls PyErr_Format without throwing an error
- log1p
- kaiser for M=1
- paver execution on Windows 7 for Python 2.6
- several fixes to Chebyshev and Polynomial
changes:
- Faster import time
- Extended array wrapping mechanism for ufuncs
- New Neighborhood iterator (C-level only)
- C99-like complex functions in npymath, and a lot of portability
fixes for basic floating point math functions
NumPy is a general-purpose array-processing package designed to
efficiently manipulate large multi-dimensional arrays of arbitrary
records without sacrificing too much speed for small multi-dimensional
arrays. NumPy is built on the Numeric code base and adds features
introduced by numarray as well as an extended C-API and the ability to
create arrays of arbitrary type.
There are also basic facilities for discrete fourier transform,
basic linear algebra and random number generation.
Pkgsrc issue: if the package build happens to find a fortran it prefers
over the one pkgsrc is using it will try to use it and the wrong thing
will happen.
adam
minskim
wiz
jperkin
kamil
wen
drochner
obache
tron
gls
markd
joerg