97 lines
4.6 KiB
ReStructuredText
97 lines
4.6 KiB
ReStructuredText
=========================
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NumPy 1.8.1 Release Notes
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=========================
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This is a bugfix only release in the 1.8.x series.
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Issues fixed
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============
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* gh-4276: Fix mean, var, std methods for object arrays
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* gh-4262: remove insecure mktemp usage
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* gh-2385: absolute(complex(inf)) raises invalid warning in python3
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* gh-4024: Sequence assignment doesn't raise exception on shape mismatch
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* gh-4027: Fix chunked reading of strings longer than BUFFERSIZE
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* gh-4109: Fix object scalar return type of 0-d array indices
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* gh-4018: fix missing check for memory allocation failure in ufuncs
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* gh-4156: high order linalg.norm discards imaginary elements of complex arrays
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* gh-4144: linalg: norm fails on longdouble, signed int
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* gh-4094: fix NaT handling in _strided_to_strided_string_to_datetime
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* gh-4051: fix uninitialized use in _strided_to_strided_string_to_datetime
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* gh-4093: Loading compressed .npz file fails under Python 2.6.6
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* gh-4138: segfault with non-native endian memoryview in python 3.4
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* gh-4123: Fix missing NULL check in lexsort
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* gh-4170: fix native-only long long check in memoryviews
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* gh-4187: Fix large file support on 32 bit
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* gh-4152: fromfile: ensure file handle positions are in sync in python3
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* gh-4176: clang compatibility: Typos in conversion_utils
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* gh-4223: Fetching a non-integer item caused array return
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* gh-4197: fix minor memory leak in memoryview failure case
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* gh-4206: fix build with single-threaded python
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* gh-4220: add versionadded:: 1.8.0 to ufunc.at docstring
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* gh-4267: improve handling of memory allocation failure
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* gh-4267: fix use of capi without gil in ufunc.at
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* gh-4261: Detect vendor versions of GNU Compilers
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* gh-4253: IRR was returning nan instead of valid negative answer
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* gh-4254: fix unnecessary byte order flag change for byte arrays
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* gh-3263: numpy.random.shuffle clobbers mask of a MaskedArray
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* gh-4270: np.random.shuffle not work with flexible dtypes
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* gh-3173: Segmentation fault when 'size' argument to random.multinomial
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* gh-2799: allow using unique with lists of complex
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* gh-3504: fix linspace truncation for integer array scalar
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* gh-4191: get_info('openblas') does not read libraries key
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* gh-3348: Access violation in _descriptor_from_pep3118_format
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* gh-3175: segmentation fault with numpy.array() from bytearray
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* gh-4266: histogramdd - wrong result for entries very close to last boundary
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* gh-4408: Fix stride_stricks.as_strided function for object arrays
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* gh-4225: fix log1p and exmp1 return for np.inf on windows compiler builds
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* gh-4359: Fix infinite recursion in str.format of flex arrays
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* gh-4145: Incorrect shape of broadcast result with the exponent operator
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* gh-4483: Fix commutativity of {dot,multiply,inner}(scalar, matrix_of_objs)
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* gh-4466: Delay npyiter size check when size may change
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* gh-4485: Buffered stride was erroneously marked fixed
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* gh-4354: byte_bounds fails with datetime dtypes
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* gh-4486: segfault/error converting from/to high-precision datetime64 objects
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* gh-4428: einsum(None, None, None, None) causes segfault
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* gh-4134: uninitialized use for for size 1 object reductions
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Changes
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=======
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NDIter
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------
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When ``NpyIter_RemoveAxis`` is now called, the iterator range will be reset.
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When a multi index is being tracked and an iterator is not buffered, it is
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possible to use ``NpyIter_RemoveAxis``. In this case an iterator can shrink
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in size. Because the total size of an iterator is limited, the iterator
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may be too large before these calls. In this case its size will be set to ``-1``
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and an error issued not at construction time but when removing the multi
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index, setting the iterator range, or getting the next function.
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This has no effect on currently working code, but highlights the necessity
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of checking for an error return if these conditions can occur. In most
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cases the arrays being iterated are as large as the iterator so that such
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a problem cannot occur.
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Optional reduced verbosity for np.distutils
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-------------------------------------------
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Set ``numpy.distutils.system_info.system_info.verbosity = 0`` and then
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calls to ``numpy.distutils.system_info.get_info('blas_opt')`` will not
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print anything on the output. This is mostly for other packages using
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numpy.distutils.
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Deprecations
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============
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C-API
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-----
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The utility function npy_PyFile_Dup and npy_PyFile_DupClose are broken by the
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internal buffering python 3 applies to its file objects.
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To fix this two new functions npy_PyFile_Dup2 and npy_PyFile_DupClose2 are
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declared in npy_3kcompat.h and the old functions are deprecated.
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Due to the fragile nature of these functions it is recommended to instead use
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the python API when possible.
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